The document describes various types of glass level gauges including reflex and transparent gauges. It provides details on available models, materials, specifications, and operating limits. The key points are:
1) Glass level gauges give accurate level readings and are ideal for calibration, playing a crucial role in system start-up.
2) The product line includes gauges suitable for pressures from PN10 to PN160 and various industrial applications.
3) Operating limits include a maximum pressure of 160 bar at 38°C and maximum temperature of 300°C for most applications. Steam applications are limited to 22 bar and 216°C.
The document describes various types of glass level gauges including reflex and transparent gauges. It provides details on available models, materials, specifications, and operating limits. The key points are:
1) Glass level gauges give accurate level readings and are ideal for calibration, playing a crucial role in system start-up.
2) The product line includes gauges suitable for pressures from PN10 to PN160 and various industrial applications.
3) Operating limits include a maximum pressure of 160 bar at 38°C and maximum temperature of 300°C for most applications. Steam applications are limited to 22 bar and 216°C.
The document describes various types of glass level gauges including reflex and transparent gauges. It provides details on available models, materials, specifications, and operating limits. The key points are:
1) Glass level gauges give accurate level readings and are ideal for calibration, playing a crucial role in system start-up.
2) The product line includes gauges suitable for pressures from PN10 to PN160 and various industrial applications.
3) Operating limits include a maximum pressure of 160 bar at 38°C and maximum temperature of 300°C for most applications. Steam applications are limited to 22 bar and 216°C.
The document describes various types of glass level gauges including reflex and transparent gauges. It provides details on available models, materials, specifications, and operating limits. The key points are:
1) Glass level gauges give accurate level readings and are ideal for calibration, playing a crucial role in system start-up.
2) The product line includes gauges suitable for pressures from PN10 to PN160 and various industrial applications.
3) Operating limits include a maximum pressure of 160 bar at 38°C and maximum temperature of 300°C for most applications. Steam applications are limited to 22 bar and 216°C.
1WITH TRANSPARENT GLASSES 1WELD-ON TYPE 1WITH GLASS TUBE 1WITH MICROWAVE TRANSMITTER Reflex level gauge type DS LG - RDR GR18 Reflex level gauge type DS LG - RBR GR18 Reflex level gauge type DS LG - RBF GR18 Reflex level gauge with monolithic shut-off cocks type DS LG - RTR MT18 Tube and protection type DS LG - TVR GR18 Reflex level gauge with ball valves type DS LG - RTF SBB Transparent level gauge with illumination lamp EEx d type DS LG - TPF GR18 essential data
TYPE OF CONNECTIONS (flanged-threaded-weld-on) and related STANDARDS (UNI-ANSI-DIN)
REQUIRED MATERIAL (wetted and non-wetted parts) TYPE OF FLUID DESIGN AND MAXIMUM OPERATING PRESSURES DESIGN AND MAXIMUM OPERATING TEMPERATURES
MINIMUM VISIBLE LENGTH REQUIRED
POSITION OF PROCESS CONNECTIONS POSITION OF THE VALVE HANDLING
ANY ADDITIONAL ACCESSORIES
CENTRE-TO-CENTRE DISTANCE (distance between process connections) READING TYPE Glass level gauges give very accurate level readings, making them the ideal product for calibrating other instruments as well. They play a crucial role during system start-up. The required visible length depends on the type of fluid and the shape of the tank. The visible length with a single glass varies from 95 mm to 320 mm. If the required visible length exceeds these measurements, additional glasses of the same length are joined together and mounted on a single bar. To ensure continuous reading along a housing consisting of numerous glasses, one or more housings can be placed on the side at the points where the reading is interrupted. Single housing Multiple housing with continuous reading Multiple housing TO RECOMMEND THE MOST SUITABLE LEVEL GAUGE, PLEASE PROVIDE THE FOLLOWING ESSENTIAL DATA WHEN ASKING FOR ADVICE OR QUOTATION. Rev.0 Specifications and design can be subject to change without notice 1.3 GLASS LEVEL GAUGES Code 1 Basic Type
DS LG DIESSE Glass level gauge
2 Level Gauge Model
Pos. 1: Level Gauge type Pos. 2: No. of sections Pos. 3: Glass size / type
RTR Reflex - rotating execution with tubular cover RTF Reflex - fixed distance execution with tubular cover RBR Reflex - rotating execution with lateral covers RBF Reflex - fixed distance execution with lateral covers RCR Reflex - rotating execution with light cover RDR Reflex - rotating execution with light cover - flat body Options Pos. 3 RCF Reflex - fixed distance execution with light cover Standard Type A RPF Reflex - fixed distance execution with heavy cover /B Type B RXF Reflex - fixed distance execution with heavy cover - flat body /RV Right View TCR Transparent - rotating execution with light cover /LV Left View TMR Transparent - rotating execution with light cover - flat body /MS Glass protection with MICA shields TCF Transparent - fixed distance execution with light cover /KFS Glass protection with ECTFE shields TMF Transparent - fixed distance execution with light cover - flat body TPF Transparent - fixed distance execution with heavy cover TXF Transparent - fixed distance execution with heavy cover - flat body RCW Reflex - weld-on type with light cover TCW Transparent - weld on type with light cover TVR Tubular glass type
3 Process connections
Pos. 1: Nominal dimension Pos. 2: Nominal pressure Pos. 3: Type / Finish Pos. 4: Position Standard Side / Side /SB Side / Bottom /TS Top / Side /TB Top / Bottom 4 Gauge Valves model Pos. 1: Type of valves Pos. 2: Drain and Vent connection
e.g. DS LG - RBR17 - 20/40/RF - GR18/D12/0 - M 420 - CS/CS - LC/VSG - EEx
The level is ascertained using a glass which has a smooth side and a wetted prismatic side. The level of the fluid inside the level gauge is shown by using the optical principles of refraction: the wetted part fully absorbs light and so the fluid appears to be black. The part in contact with the gas, on the other hand, fully reflects light and so the gas appears to be of a very light colour. The product line includes level gauges suitable for pressure ratings from PN10 to PN160 and a huge number of industrial process applications. This type of gauge is recommended: for taking clear and simple readings (see counter-indications below) if you are looking for an inexpensive gauge which will also save you money on maintenance costs Operating limits / Conditions: Process: Max. pressure: 160 bar @ 38C (with GR18, MT18 or SHV type valves) Max. temperature: 300C (max. temperature allowed by borosilicate glasses as per the DIN 7081 standard - see page 1.69) Steam: (see page 1.59) Max. pressure: 22 bar (with GR18, MT18 or SHV type valves) Max. temperature: 216C (saturated steam @ 22 bar) For saturated steam values > 20 bar, a low-maintenance transparent level gauge with mica shield protection should be used (see graph "glass loss caused by boiler water" for the estimated glass life). Not only does the glass life depend on the temperature, it depends on the pH of the water (the higher the value, the shorter the glass life). The product is NOT suitable for use in the following instances: if exposed to corrosive fluid (e.g. caustic soda, hydrofluoric acid, citric acid ...) if exposed to high pressure steam if subjected to repeated thermal shocks In the scenarios listed above, the glass must be protected with MICA or PCTFE shields, so a transparent level gauge is necessary for checking the level of separation between two immiscible fluids (interface) for checking the colour of a fluid (all fluids look very dark) in cases where the fluid is particularly viscous (a film may form on the glass which prevents you from taking an accurate reading) in cases where the fluid is particularly dark (the reflex principle is rendered ineffective) REFLEX LEVEL GAUGES PN25/40 Class 150 PN40/64 Class 300 PN40/64 Class 300 PN100/160 Class 600/900 PN160 Class 900 Types: PN16 Materials / Specifications: Connections between housing and cocks: - with grinded pipes and stuffing box (view can be turned by the customer during installation) - fixed centre-to-centre distance with metal seal (view can be turned during manufacture) Wetted parts: - standard: galvanized ASTM A105 or A105 LF2 carbon steel, ASTM A182 F316L stainless steel - additional options: on request Non-wetted parts: - standard: galvanized carbon steel, AISI 316/316L stainless steel - additional options: on request Gaskets: (see page 1.71) - standard: graphite/copper (ASTM A105), graphite/AISI 316 (A105 LF2 and ASTM A182 F316L) - additional options: PTFE; other extras on request Glasses: (see page 1.69) - reflex borosilicate glasses, thermally pre-stressed and extra hard as per the DIN 7081 standard Shut-off: (see page 1.49) - standard: upper valve and lower valve (side/side) - additional options: on request Drain: (see page 1.50) - standard: threaded valve - additional options: on request Vent: (see page 1.50) - standard: blind (for grinded pipes version) - threaded with plug (for fixed centre-to-centre version) - additional options: on request Tank connections: Flanged: - UNI standard: PN40 DN15 / DN20 / DN25 - ANSI standard: #150 / #300 / #600 DN / / 1 - additional options: on request Threaded: - BSP (GAS) standard: -M / -M - NPT standard: -M / -M Weld-on: from to 1 BW or SW Option: further connections type or direct connections to the process without shut-off cocks (see page 1.49 for more details) Shut-off cocks, drain cock and vent cock: - Cylindrical plug cocks (type GR18 or MT18 - see page 1.47) - Globe valves (type SHV - see page 1.48) - Push-button valves (type NPV - see page 1.48) - Ball valves (type SBB) Spare parts: Our spare parts are interchangeable with those of major international manufacturers. For the full range of complete sets, turn to the spares section on page 1.69. Accessories: Lower and/or upper safety ball, pusher for safety ball, calibrated scale, non-frosting extension, minimum level arrow, continuous reading, cocks handles lock (see page 1.55 for details) Certifications (On request): - ATEX - Tests and inspection by Notified Bodies - NACE MR0175 - Others on request accordance with company quality procedures and the industry regulations currently in effect. Certificates can be issued on request. All DIESSE products are individually checked and tested in Rev.0 Specifications and design can be subject to change without notice 1.G
Technical data
Service conditions Max Pressure: PN25 and PN40 Max Temperature: 280/300C (According to DIN 7081 for glasses, see page 1.69)
View Standard: adjustable on 360in the installation phase
Distance (Centre-to-centre) Standard: see below table (Distance adjustable - 0 mm / + 10 mm) Option: On request intermediate distances and over 3.000 mm
Gaskets Standard: grahite/copper Option: graphite/AISI 316 or PTFE/AISI316
Shut-off cocks Type DS GR18: cylindrical plug type - Straight type - Quick 90closing Type DS MT18: cylindrical plug type with monolithic body - Straight type - Quick 90closing (see page 1.47) Centre-to-centre distance M = B + 115 mm or 140 mm Handling: lever operated with PP handle (Standard: right; Option: left) Process connections: Standard flanges: UNI PN40 DN15-20-25 ANSI#150-300-600/RF DN - - 1 Standard threaded unions: BSP-M - NPT-M - Options: further connections types or direct connections to the process without shut-off cocks (see page 1.49) Vent: Standard: blind Option: see page 1.50 Drain: Standard: cock type D12 threaded Option: see page 1.50
Glasses Reflex - Borosilicate glass, extra hard and thermally pre-stressed - According to DIN 7081 Standard: fitted with type A (see page 1.69) Option: type B (see page 1.69)
Accessories See from page 1.55
Weights Housing type DS RBR: see below table Cocks type DS GR18: Kg. 7,4 approx. (with flanges UNI DN20 PN40)
Tightening torque of housing screws Standard: 40 Nm
Spare parts Housing type DS RBR: see from page 1.69 (drawing with components and parts list see page 1.61) Cocks type DS GR18: see from page 1.72 (drawing with components and parts list see pag. 1.66)
CODE TYPE BODY DISTANCE SL DISTANCE HL VISIBLE GLASS WEIGHT Length Pipes L = 57 Pipes L = 72 Length Length Housing [mm] -0/+10 mm -0/+10 mm [mm] [mm] [Kg]
GLASS LEVEL GAUGE REFLEX TYPE PN25 and PN40 / Class 150
DS LG - RBR GR18
Code: DS LG RBR- /40/RF-GR18//-M-CS/CS
Rev.0 Specifications and design can be subject to change without notice 1.-
Technical data
Service conditions Max Pressure: PN25 and PN40 Max Temperature: 280/300C (According to DIN 7081 for glasses, see page 1.69)
View Standard: front, on request lateral (right or left) adjustable in the production phase
Distance (Centre-to-centre) Standard: see below table for mimimum distance (Fixed distance, not adjustable) Option: On request intermediate distances and over 3.000 mm
Gaskets Standard: grahite/copper Option: graphite/AISI 316 or PTFE/AISI316
Shut-off cocks Type DS GR18: cylindrical plug type - Straight type - Quick 90closing Handling: lever operated with PP handle (Standard: right; Option: left) Process connections: Standard flanges: UNI PN40 DN15-20-25 ANSI#150-300-600/RF DN - - 1 Standard threaded unions: BSP-M - NPT-M - Options: further connections types or direct connections to the process without shut-off cocks (see page 1.51) Vent: Standard: threaded with plug Option: see page 1.52 Drain: Standard: cock type D12 threaded Option: see page 1.52
Glasses Reflex - Borosilicate glass, extra hard and thermally pre-stressed - According to DIN 7081 Standard: fitted with type A (see page 1.69) Option: type B (see page 1.69)
Accessories See from page 1.55
Weights Housing type DS RBF: see below table Cocks type DS GR18: Kg. 7,4 approx. (with flanges UNI DN20 PN40)
Tightening torque of housing screws Standard: 40 Nm
Spare parts Housing type DS RBR: see from page 1.69 (drawing with components and parts list see page 1.61) Cocks type DS GR18: see from page 1.72 (drawing with components and parts list see pag. 1.66)
CODE TYPE BODY DISTANCE SL VISIBLE GLASS WEIGHT Length MINIMUM Length Length Housing [mm] [mm] [mm] [mm] [Kg]
GLASS LEVEL GAUGE REFLEX TYPE PN25 and PN40 / Class 150
DS LG - RBF GR18
Code: DS LG RBF- /40/RF-GR18//-M-CS/CS
Rev.0 Specifications and design can be subject to change without notice 1.6
Technical data
Service conditions Max Pressure: PN40 Max Temperature: 280/300C (According to DIN 7081 for glasses, see page 1.69)
View Standard: adjustable on 360in the installation phase
Distance (Centre-to-centre) Standard: see below table (Distance adjustable - 0 mm / + 10 mm) Option: On request intermediate distances and over 3.000 mm
Gaskets Standard: grahite/copper Option: graphite/AISI 316 or PTFE/AISI316
Shut-off cocks Type DS GR18: cylindrical plug type - Straight type - Quick 90closing Handling: lever operated with PP handle (Standard: right; Option: left) Process connections: Standard flanges: UNI PN40 DN15-20-25 ANSI#150-300-600/RF DN - - 1 Standard threaded unions: BSP-M - NPT-M - Options: further connections types or direct connections to the process without shut-off cocks (see page 1.49) Vent: Standard: blind Option: see page 1.50 Drain: Standard: cock type D12 threaded Option: see page 1.50
Glasses Reflex - Borosilicate glass, extra hard and thermally pre-stressed - According to DIN 7081 Standard: fitted with type A (see page 1.69)
Accessories See from page 1.55
Weights Housing type DS RCR: see below table Cocks type DS GR18: Kg. 7,4 approx. (with flanges UNI DN20 PN40)
Tightening torque of housing screws Standard: 35 Nm
Spare parts Housing type DS RCR: see from page 1.69 (drawing with components and parts list see page 1.62) Cocks type DS GR18: see from page 1.72 (drawing with components and parts list see page 1.66)
CODE TYPE BODY DISTANCE SL DISTANCE HL VISIBLE GLASS WEIGHT Length Pipes L = 57 Pipes L = 72 Length Length Housing [mm] -0/+10 mm -0/+10 mm [mm] [mm] [Kg]
Rev.0 Specifications and design can be subject to change without notice 1.19
Technical data
Service conditions Max Pressure: PN40 Max Temperature: 280/300C (According to DIN 7081 for glasses, see page 1.69)
View Standard: adjustable on 360in the installation phase
Distance (Centre-to-centre) Standard: see below table (Distance adjustable - 0 mm / + 10 mm) Option: On request intermediate distances and over 3.000 mm
Gaskets Standard: grahite/copper Option: graphite/AISI 316 or PTFE/AISI316
Shut-off cocks Type DS GR18: cylindrical plug type - Straight type - Quick 90closing Handling: lever operated with PP handle (Standard: right; Option: left) Valves type DS SHV: globe type - Opening/Closing by handwheel Process connections: Standard flanges: UNI PN40 DN15-20-25 ANSI#150-300-600/RF DN - - 1 Standard threaded unions: BSP-M - NPT-M - Options: further connections types or direct connections to the process without shut-off cocks (see page 1.49) Vent: Standard: blind Option: see page 1.50 Drain: Standard: cock type D12 threaded Option: see page 1.50
Glasses Reflex - Borosilicate glass, extra hard and thermally pre-stressed - According to DIN 7081 Standard: fitted with type B (see page 1.69) Option: type A (see page 1.69)
Accessories See from page 1.55
Weights Housing type DS RDR: see below table Cocks type DS GR18: Kg. 7,4 approx. (with flanges UNI DN20 PN40) Valves type DS SHV: Kg. 11,8 approx. (with flanges UNI DN20 PN40)
Tightening torque of housing screws Standard: 35 Nm
Spare parts Housing type DS RDR: see from page 1.69 (drawing with components and parts list see page 1.62) Cocks type DS GR18: see from page 1.72 (drawing with components and parts list see page 1.66) Valves type DS SHV: see from page 1.74 (drawing with components and parts list see page 1.68)
CODE TYPE BODY DISTANCE SL DISTANCE HL VISIBLE GLASS WEIGHT Length Pipes L = 57 Pipes L = 72 Length Length Housing [mm] -0/+10 mm -0/+10 mm [mm] [mm] [Kg]
Rev.0 Specifications and design can be subject to change without notice 1.11
Technical data
Service conditions Max Pressure: PN40 and PN64; Class 300 (A105: 51 bar @ 38C; AISI 316L: 49,6 bar @ 38C) Max Temperature: 280/300C (According to DIN 7081 for glasses, see page 1.69)
View Standard: front, on request lateral (right or left) adjustable in the production phase
Distance (Centre-to-centre) Standard: see below table for mimimum distance (Fixed distance, not adjustable) Option: On request intermediate distances and over 3.000 mm
Gaskets Standard: grahite/copper Option: graphite/AISI 316 or PTFE/AISI316
Shut-off cocks Type DS GR18: cylindrical plug type - Straight type - Quick 90closing Handling: lever operated with PP handle (Standard: right; Option: left) Process connections: Standard flanges: UNI PN40-64 DN15-20-25 ANSI#150-300-600/RF DN - - 1 Standard threaded unions: BSP-M - NPT-M - Options: further connections types or direct connections to the process without shut-off cocks (see page 1.51) Vent: Standard: threaded with plug Option: see page 1.52 Drain: Standard: cock type D12 threaded Option: see page 1.52
Glasses Reflex - Borosilicate glass, extra hard and thermally pre-stressed - According to DIN 7081 Standard: fitted with type A (see page 1.69)
Accessories See from page 1.55
Weights Housing type DS RCF: see below table Cocks type DS GR18: Kg. 7,4 approx. (with flanges UNI DN20 PN40)
Tightening torque of housing screws Standard: 35 Nm
Spare parts Housing type DS RCF: see from page 1.69 (drawing with components and parts list see page 1.62) Cocks type DS GR18: see from page 1.72 (drawing with components and parts list see page 1.66)
CODE TYPE BODY DISTANCE SL VISIBLE GLASS WEIGHT Length MINIMUM Length Length Housing [mm] [mm] [mm] [mm] [Kg]
GLASS LEVEL GAUGE REFLEX TYPE PN40 and PN64 / Class 300
DS LG - RCF GR18
Code: DS LG RCF- /40/RF-GR18//-M-CS/CS
Rev.0 Specifications and design can be subject to change without notice 1.12
Technical data
Service conditions Max Pressure: PN40 and PN64; Class 300 (A105: 51 bar @ 38C; AISI 316L: 49,6 bar @ 38C) Max Temperature: 280/300C (According to DIN 7081 for glasses, see page 1.69)
View Standard: front, on request lateral (right or left) adjustable in the production phase
Distance (Centre-to-centre) Standard: see below table for mimimum distance (Fixed distance, not adjustable) Option: On request intermediate distances and over 3.000 mm
Gaskets Standard: grahite/copper Option: graphite/AISI 316 or PTFE/AISI316
Shut-off valves Type DS SHV: globe type Handling: by handwheel Process connections: Standard flanges: UNI PN40-64 DN15-20-25 ANSI#150-300-600/RF DN - - 1 Standard threaded unions: BSP-M - NPT-M - Options: further connections types or direct connections to the process without shut-off valves (see page 1.53) Vent: Standard: threaded with plug Option: see page 1.54 Drain: Standard: valve type DHV threaded Option: see page 1.54
Glasses Reflex - Borosilicate glass, extra hard and thermally pre-stressed - According to DIN 7081 Standard: fitted with type A (see page 1.69)
Accessories See from page 1.55
Weights Housing type DS RCF: see below table Valves type DS SHV: Kg. 11,8 approx. (with flanges UNI DN20 PN40)
Tightening torque of housing screws Standard: 35 Nm
Spare parts Housing type DS RCF: see from page 1.69 (drawing with components and parts list see page 1.62) Valves type DS SHV: see from page 1.74 (drawing with components and parts list see page 1.68)
CODE TYPE BODY DISTANCE SL VISIBLE GLASS WEIGHT Length MINIMUM Length Length Housing [mm] [mm] [mm] [mm] [Kg]
GLASS LEVEL GAUGE REFLEX TYPE PN40 and PN64 / Class 300
DS LG - RCF SHV
Code: DS LG RCF- /40/RF-SHV//-M-CS/CS
Rev.0 Specifications and design can be subject to change without notice 1.18
Technical data
Service conditions Max Pressure: PN100; Class 600 (A105: 102 bar @ 38C; AISI 316L: 99,3 bar @ 38C) and PN160; Class 900 (A105: 153,1 bar @ 38C; AISI 316L: 148,9 bar @ 38C) Max Temperature: 280/300C (According to DIN 7081 for glasses, see page 1.69)
View Standard: front, on request lateral (right or left) adjustable in the production phase
Distance (Centre-to-centre) Standard: see below table for mimimum distance (Fixed distance, not adjustable) Option: On request intermediate distances and over 2.000 mm
Gaskets Standard: grahite/copper Option: graphite/AISI 316 or PTFE/AISI316
Shut-off cocks Type DS GR18: cylindrical plug type - Straight type - Quick 90closing Handling: lever operated with PP handle (Standard: right; Option: left) Process connections: Standard flanges: UNI PN100-160 DN20 - DN25 ANSI#600-900/RF DN - 1 Standard threaded unions: BSP-M - 1 NPT-M - 1 Options: further connections types or direct connections to the process without shut-off cocks (see page 1.51) Vent: Standard: threaded with plug Option: see page 1.52 Drain: Standard: cock type D12 threaded Option: see page 1.52
Glasses Reflex - Borosilicate glass, extra hard and thermally pre-stressed - According to DIN 7081 Standard: fitted with type B (see page 1.69)
Accessories See from page 1.55
Weights Housing type DS RPF: see below table Cocks type DS GR18: Kg. 9,2 approx. (with flanges UNI DN20 PN100)
Tightening torque of housing screws Standard: 75 Nm
Spare parts Housing type DS RPF: see from page 1.69 (drawing with components and parts list see page 1.63) Cocks type DS GR18: see from page 1.72 (drawing with components and parts list see page 1.66)
CODE TYPE BODY DISTANCE SL VISIBLE GLASS WEIGHT Length MINIMUM Length Length Housing [mm] [mm] [mm] [mm] [Kg]
GLASS LEVEL GAUGE REFLEX TYPE PN100 and PN160 / Class 600 and 900
DS LG - RPF GR18
Code: DS LG RPF- /100/RF-GR18//-M-CS/CS
Rev.0 Specifications and design can be subject to change without notice 1.1H
Technical data
Service conditions Max Pressure: PN100; Class 600 (A105: 102 bar @ 38C; AISI 316L: 99,3 bar @ 38C) and PN160; Class 900 (A105: 153,1 bar @ 38C; AISI 316L: 148,9 bar @ 38C) Max Temperature: 280/300C (According to DIN 7081 for glasses, see page 1.69)
View Standard: front, on request lateral (right or left) adjustable in the production phase
Distance (Centre-to-centre) Standard: see below table for mimimum distance (Fixed distance, not adjustable) Option: On request intermediate distances and over 2.000 mm
Gaskets Standard: grahite/copper Option: graphite/AISI 316 or PTFE/AISI316
Shut-off valves Type DS SHV: globe type Handling: by handwheel Process connections: Standard flanges: UNI PN100-160 DN20-25 ANSI#600-900/RF DN - 1 Standard threaded unions: BSP-M - 1 NPT-M - 1 Options: further connections types or direct connections to the process without shut-off valves (see page 1.53) Vent: Standard: threaded with plug Option: see page 1.54 Drain: Standard: valve type DHV threaded Option: see page 1.54
Glasses Reflex - Borosilicate glass, extra hard and thermally pre-stressed - According to DIN 7081 Standard: fitted with type B (see page 1.69)
Accessories See from page 1.55
Weights Housing type DS RPF: see below table Valves type DS SHV: Kg. 13,5 approx. (with flanges UNI DN20 PN100)
Tightening torque of housing screws Standard: 75 Nm
Spare parts Housing type DS RPF: see from page 1.69 (drawing with components and parts list see page 1.63) Valves type DS SHV: see from page 1.74 (drawing with components and parts list see page 1.68)
CODE TYPE BODY DISTANCE SL VISIBLE GLASS WEIGHT Length MINIMUM Length Length Housing [mm] [mm] [mm] [mm] [Kg]
GLASS LEVEL GAUGE REFLEX TYPE PN100 and PN160 / Class 600 and 900
DS LG - RPF SHV
Code: DS LG RPF- /100/RF-SHV//-M-CS/CS
Rev.0 Specifications and design can be subject to change without notice 1.17
Technical data
Service conditions Max Pressure: PN160; Class 900 (A105: 153,1 bar @ 38C; AISI 316L: 148,9 bar @ 38C) Max Temperature: 280/300C (According to DIN 7081 for glasses, see page 1.69)
View Standard: front, on request lateral (right or left) adjustable in the production phase
Distance (Centre-to-centre) Standard: see below table for mimimum distance (Fixed distance, not adjustable) Option: On request intermediate distances and over 2.000 mm
Gaskets Standard: grahite/copper Option: graphite/AISI 316 or PTFE/AISI316
Shut-off cocks Type DS GR18: cylindrical plug type - Straight type - Quick 90closing Handling: lever operated with PP handle (Standard: right; Option: left) Process connections: Standard flanges: UNI PN160 DN20 - DN25 ANSI#900/RF DN - 1 Standard threaded unions: BSP-M - 1 NPT-M - 1 Options: further connections types or direct connections to the process without shut-off cocks (see page 1.51) Vent: Standard: threaded with plug Option: see page 1.52 Drain: Standard: cock type D12 threaded Option: see page 1.52
Glasses Reflex - Borosilicate glass, extra hard and thermally pre-stressed - According to DIN 7081 Standard: fitted with type B (see page 1.69)
Accessories See from page 1.55
Weights Housing type DS RXF: see below table Cocks type DS GR18: Kg. 9,2 approx. (with flanges UNI DN20 PN100)
Tightening torque of housing screws Standard: 75 Nm
Spare parts Housing type DS RXF: see from page 1.69 (drawing with components and parts list see page 1.63) Cocks type DS GR18: see from page 1.72 (drawing with components and parts list see page 1.66)
CODE TYPE BODY DISTANCE SL VISIBLE GLASS WEIGHT Length MINIMUM Length Length Housing [mm] [mm] [mm] [mm] [Kg]
Rev.0 Specifications and design can be subject to change without notice 1.1D
Technical data
Service conditions Max Pressure: PN160; Class 900 (A105: 153,1 bar @ 38C; AISI 316L: 148,9 bar @ 38C) Max Temperature: 280/300C (According to DIN 7081 for glasses, see page 1.69)
View Standard: front, on request lateral (right or left) adjustable in the production phase
Distance (Centre-to-centre) Standard: see below table for mimimum distance (Fixed distance, not adjustable) Option: On request intermediate distances and over 2.000 mm
Gaskets Standard: grahite/copper Option: graphite/AISI 316 or PTFE/AISI316
Shut-off valves Type DS SHV: globe type Handling: by handwheel Process connections: Standard flanges: UNI PN160 DN20-25 ANSI#900/RF DN - 1 Standard threaded unions: BSP-M - 1 NPT-M - 1 Options: further connections types or direct connections to the process without shut-off valves (see page 1.53) Vent: Standard: threaded with plug Option: see page 1.54 Drain: Standard: valve type DHV threaded Option: see page 1.54
Glasses Reflex - Borosilicate glass, extra hard and thermally pre-stressed - According to DIN 7081 Standard: fitted with type B (see page 1.69)
Accessories See from page 1.55
Weights Housing type DS RXF: see below table Valves type DS SHV: Kg. 13,5 approx. (with flanges UNI DN20 PN160)
Tightening torque of housing screws Standard: 75 Nm
Spare parts Housing type DS RXF: see from page 1.69 (drawing with components and parts list see page 1.63) Valves type DS SHV: see from page 1.74 (drawing with components and parts list see page 1.68)
CODE TYPE BODY DISTANCE SL VISIBLE GLASS WEIGHT Length MINIMUM Length Length Housing [mm] [mm] [mm] [mm] [Kg]
Gaskets Standard: grahite/copper Option: graphite/AISI 316 or PTFE/AISI316
Shut-off cocks Type DS GR18: cylindrical plug type - Straight type - Quick 90closing Type DS MT18: cylindrical plug type with monolithic body - Straight type - Quick 90closing (see page 1.47) Centre-to-centre distance M = B + 115 mm or 140 mm Handling: lever operated with PP handle (Standard: right; Option: left) Process connections: Standard flanges: UNI PN16/40 DN15-20-25 ANSI#150/RF DN - - 1 Standard threaded unions: BSP-M - NPT-M - Options: further connections types or direct connections to the process without shut-off cocks (see page 1.49) Vent: Standard: blind Option: see page 1.50 Drain: Standard: cock type D12 threaded Option: see page 1.50
Glasses Reflex - Borosilicate glass, extra hard and thermally pre-stressed - According to DIN 7081 Standard: fitted with type A (see page 1.69)
Accessories See from page 1.55
Weights Housing type DS RTR: see below table Cocks type DS GR18: Kg. 7,4 approx. (with flanges UNI DN20 PN40) Cocks type DS MT18: Kg. 6,1 approx. (with flanges UNI DN20 PN40)
Tightening torque of housing screws Standard: 25 Nm
Spare parts Housing type DS RTR: see from page 1.69 (drawing with components and parts list see page 1.61) Cocks type DS GR18: see from page 1.72 (drawing with components and parts list see page 1.66) Cocks type DS MT18: see from page 1.64 (drawing with components and parts list see page 1.67)
With cocks type DS GR18:
CODE TYPE BODY DISTANCE SL DISTANCE HL VISIBLE GLASS WEIGHT Length Pipes L = 57 Pipes L = 72 Length Length Housing [mm] -0/+10 mm -0/+10 mm [mm] [mm] [Kg]
CODE TYPE BODY DISTANCE SL DISTANCE HL VISIBLE GLASS WEIGHT Length Pipes L = 57 Pipes L = 72 Length Length Housing [mm] -0/+10 mm -0/+10 mm [mm] [mm] [Kg]
Rev.0 Specifications and design can be subject to change without notice 1.1-
Technical data
Service conditions Max Pressure: PN16 Max Temperature: - With PTFE gaskets and ball valves type DS SBB: 120C - With graphite gaskets and cylindrical plug cocks type DS D12: 170C
View Standard: front, on request lateral (right or left) adjustable in the production phase
Distance (Centre-to-centre) On request, Fixed distance, not adjustable
Materials (Standard) Execution: CS/CS Gauge body: ASTM A105 Body, ball and sealing of ball valves type DS SBB: Brass (CW617N) / Brass (CW617N) / PTFE Body, trim and sealing of cocks type DS D12: ASTM A105 / AISI 303 / Graphite Non-wetted parts: Carbon steel galvanized
Shut-off cocks Standard: cylindrical plug cocks type DS D18 threaded 1/2 BSP-F - Quick 90closing (see page 3.4) Handling: lever operated with PP handle
Process connections: Standard: threaded 1/2 BSP-F (with cylindrical plug cocks type DS D18) threaded M28x2-F (with revolving female connections - without valves)
Vent: Standard: three way cylindrical plug manometer setting valve with control flange type DS PM18 threaded 1/2 BSP-F (see page 3.5) Handling: lever operated with PP handle Option: on request threaded 1/2" BSP-F with plug (without cock)
Drain: Standard: with cylindrical plug cock type DS D12 threaded 1/2 BSP-M with drain tube - Quick 90 closing (see page 3.3) Handling: lever operated with PP handle
Glasses Reflex - Borosilicate glass, extra hard and thermally pre-stressed - According to DIN 7081 Standard: fitted with type A (see page 1.69) Option: type B (see page 1.69)
Accessories See from page 1.55
Weights Housing type DS RBFPM: see below table Cocks type DS D18: Kg. 0,9 unit approx. Cock type DS PM18: Kg. 1,2 unit approx. Cock type DS D12: Kg. 0,5 unit approx.
Tightening torque of housing screws Standard: 40 Nm
Spare parts Housing type DS RBFPM: see from page 1.69 (drawing with components and parts list see page 1.61) Cocks type DS D18: see from page 1.72 Cock type DS PM18: see from page 1.72 Cock type DS D12: see from page 1.72
CODE TYPE BODY DISTANCE VISIBLE GLASS WEIGHT Length Length Length Housing [mm] [mm] [mm] [mm] [Kg]
B M VL
11 1 130 On request 95 115 2,4 12 2 155 On request 120 140 2,8 13 3 180 On request 145 165 3,3 14 4 205 On request 170 190 3,8 15 5 235 On request 200 220 4,3 16 6 265 On request 230 250 4,9 17 7 295 On request 260 280 5,4 18 8 335 On request 300 320 6,1 19 9 360 On request 320 340 6,6 Tab. RBFPM
GLASS LEVEL GAUGE REFLEX TYPE PN25
DS LG - RBFPM D18
Code: DS LG RBFPM-1/2GASF-D18/D12/PM18-M-CS/CS
MARINE LEVEL GAUGES Rev.0 Specifications and design can be subject to change without notice 1.20
Technical data
Service conditions Pressione max: PN16 Temperatura max: 150C
Application Fluid storage tanks also aboard of ships
View Standard: front, on request lateral (right or left) adjustable in the production phase
Distance (Centre-to-centre) Standard: see below table for mimimum distance (Fixed distance, not adjustable) Option: On request intermediate distances and over 3.000 mm
Self-closing Valve Type DS NPV: self-closing, push button type Handling: opening by push button (Standard: valve on the right side; On request on the left side) Process connections: Standard flange: UNI PN16 DN15-20-25 ANSI#150/RF DN - - 1 Standard threaded unions: BSP-M - NPT-M - Option: further connections types Vent: Standard: threaded with vent pipe Option: on request (see details at page 1.52) Drain: Standard: threaded with plug Option: on request (see details at page 1.52)
Glasses Reflex - Borosilicate glass, extra hard and thermally pre-stressed - According to DIN 7081 Standard: fitted with type A (see page 1.69) Option: type B (see page 1.69)
Accessories See from page 1.55
Weights Housing type DS RBF: see below table Valve type DS NPV: Kg. 2,6 approx. (with flanges UNI DN20 PN16)
Tightening torque of housing screws Standard: 40 Nm
Spare parts Housing type DS RBF: see from page 1.69 (drawing with components and parts list see page 1.61) Valve type DS NPV: see from page 1.74 (drawing with components and parts list see page 1.67)
CODE TYPE BODY DISTANCE SL VISIBLE GLASS WEIGHT Length MINIMUM Length Length Housing [mm] [mm] [mm] [mm] [Kg]
Rev.0 Specifications and design can be subject to change without notice 1.21
Technical data
Service conditions Max Pressure: PN25 and PN40 Max Temperature: 280/300C (According to DIN 7081 for glasses, see page 1.69)
Application Fluid storage tanks also aboard of ships
View Standard: adjustable on 360in the installation phase
Distance (Centre-to-centre) Standard: see below table (Distance adjustable - 0 mm / + 10 mm) Option: On request intermediate distances and over 3.000 mm
Gaskets Standard: grahite/copper Option: graphite/AISI 316 or PTFE/AISI316
Shut-off cocks Type DS GR18: cylindrical plug type - Straight type - Quick 90closing Lower cock with weight closing accessory for self closing Handling: lever operated (Standard: right; Option: left) Process connections: Standard flanges: UNI PN40 DN15-20-25 ANSI#150-300-600/RF DN - - 1 Standard threaded unions: BSP-M - NPT-M - Options: further connections types to the process (see page 1.49) Vent: Standard: blind Option: see page 1.50 Drain: Standard: cock type D12 threaded Option: see page 1.50
Glasses Reflex - Borosilicate glass, extra hard and thermally pre-stressed - According to DIN 7081 Standard: fitted with type A (see page 1.69) Option: type B (see page 1.69)
Accessories See from page 1.55
Weights Housing type DS RBR: see below table Cocks type DS GR18 with weight closing for lower handle: Kg. 10,8 approx. (with flanges UNI DN20 PN40)
Tightening torque of housing screws Standard: 40 Nm
Spare parts Housing type DS RBR: see from page 1.69 (drawing with components and parts list see page 1.61) Cocks type DS GR18: see from page 1.72 (drawing with components and parts list see pag. 1.66)
CODE TYPE BODY DISTANCE SL DISTANCE HL VISIBLE GLASS WEIGHT Length Pipes L = 57 Pipes L = 72 Length Length Housing [mm] -0/+10 mm -0/+10 mm [mm] [mm] [Kg]
GLASS LEVEL GAUGE REFLEX TYPE PN25 and PN40 / Class 150
DS LG - RBR GR18 - LFC
Code: DS LG RBR- /40/RF-GR18//-M-CS/CS-LFC
Rev.0 Specifications and design can be subject to change without notice 1.22
Technical data
Service conditions Max Pressure: PN25 and PN40 Max Temperature: 280/300C (According to DIN 7081 for glasses, see page 1.69)
Application Fluid storage tanks also aboard of ships
View Standard: front, on request lateral (right or left) adjustable in the production phase
Distance (Centre-to-centre) Standard: see below table for mimimum distance (Fixed distance, not adjustable) Option: On request intermediate distances and over 3.000 mm
Gaskets Standard: grahite/copper Option: graphite/AISI 316 or PTFE/AISI316
Shut-off cocks Type DS GR18: cylindrical plug type - Straight type - Quick 90closing Lower cock with weight closing accessory for self closing Handling: lever operated (Standard: right; Option: left) Process connections: Standard flanges: UNI PN40 DN15-20-25 ANSI#150-300-600/RF DN - - 1 Standard threaded unions: BSP-M - NPT-M - Options: further connections types to the process (see page 1.51) Vent: Standard: threaded with plug Option: see page 1.52 Drain: Standard: cock type D12 threaded Option: see page 1.52
Glasses Reflex - Borosilicate glass, extra hard and thermally pre-stressed - According to DIN 7081 Standard: fitted with type A (see page 1.69) Option: type B (see page 1.69)
Accessories See from page 1.55
Weights Housing type DS RBF: see below table Cocks type DS GR18 with weight closing for lower handle: Kg. 10,8 approx. (with flanges UNI DN20 PN40)
Tightening torque of housing screws Standard: 40 Nm
Spare parts Housing type DS RBR: see from page 1.69 (drawing with components and parts list see page 1.61) Cocks type DS GR18: see from page 1.72 (drawing with components and parts list see pag. 1.66)
CODE TYPE BODY DISTANCE SL VISIBLE GLASS WEIGHT Length MINIMUM Length Length Housing [mm] [mm] [mm] [mm] [Kg]
GLASS LEVEL GAUGE REFLEX TYPE PN25 and PN40 / Class 150
DS LG - RBF GR18 - LFC
Code: DS LG RBF- /40/RF-GR18//-M-CS/CS - LFC
In this kind of level gauge, the fluid is held between two smooth glasses. The level can be identified as the fluid has a different level of transparency compared to gases and steam. The transparent level gauge is particularly recommended for applications where the glass needs to be protected from corrosive fluids and high temperatures. A lamp can also be fitted behind the gauge to improve visibility in special operating conditions. The product line includes level gauges suitable for pressure ratings from PN10 to PN160 and a huge number of industrial process applications. This type of gauge is recommended: for use with corrosive fluids (protective shield for the glass is required) for steam with an operating pressure > 20 bar (protective shield for the glass is required) if repeated thermal shocks are likely (protective shield for the glass is required) for checking the interface (level of separation between two immiscible fluids) for checking the colour of a fluid for dirty / oily fluids Operating limits / Conditions: Process: Max. pressure: 160 bar @ 38C (with cylindrical plug cocks or globe valves) Max. temperature: 300C (max. temperature allowed by borosilicate glasses as per the DIN 7081 standard - see page 1.69) Steam: (see page 1.59) Max. pressure: 70 bar (with cylindrical plug cocks or globe valves) Max. temperature: 280C PN25/40 Class 150/300 PN40/64 Class 300 PN64/100 Class 600 PN100/160 Class 600/900 Types: TRASPARENT LEVEL GAUGES With natural light With artificial light (illumination lamp) Materials / Specifications: Connections between housing and cocks: - with grinded pipes and stuffing box (view can be turned can be positioned by the customer during installation) - fixed centre-to-centre distance with metal seal (view can be turned can be positioned during manufacture) Wetted parts: - standard: galvanized ASTM A105 or A105 LF2 carbon steel, ASTM A182 F316L stainless steel - additional options: on request Non-wetted parts: - standard: galvanized carbon steel, AISI 316/316L stainless steel - additional options: on request Gaskets: (see page 1.71) - standard: graphite/copper (ASTM A105), graphite/AISI 316 (A105 LF2 and ASTM A182 F316L) - additional options: PTFE; other extras on request Glasses: (see page 1.69) - transparent borosilicate glasses, thermally pre-stressed and extra hard as per the DIN 7081 standard Shut-off: (see page 1.49) - standard: upper valve and lower valve (side/side) - additional options: on request Drain: (see page 1.50) - standard: threaded valve - additional options: on request Vent: (see page 1.50) - standard: blind (for grinded pipes version) - threaded with plug (for fixed centre-to-centre version) - additional options: on request Tank connections: Flanged: - UNI standard: PN40 DN15 / DN20 / DN25 - ANSI standard: #150 / #300 / #600 DN / / 1 - additional options: on request Threaded: - BSP (GAS) standard: -M / -M - NPT standard: -M / -M Weld-on: from to 1 BW or SW Option: further connections type or direct connections to the process without shut-off cocks (see page 1.49 for more details) Shut-off cocks, drain cock and vent cock: - Cylindrical plug cocks (type GR18 or MT18 - see page 1.47) - Globe valves (type SHV - see page 1.48) - Push-button valves (type NPV - see page 1.48) - Ball valves (type SBB) Spare parts: Our spare parts are interchangeable with those of major international manufacturers. For the full range of complete sets, turn to the spares section on page 1.69. Accessories: Mica or PCTFE protective shield for the glass, flameproof and watertight illumination lamp (ATEX approved), lower and/or upper safety ball, pusher for safety ball, calibrated scale, non-frosting extension, minimum level arrow, continuous reading, cocks handles lock (see page 1.55 for details) Certifications (On request): - ATEX - Tests and inspection by Notified Bodies - NACE MR0175 - Others on request All DIESSE products are individually checked and tested in accordance with company quality procedures and the industry regulations currently in effect. Certificates can be issued on request. Rev.0 Specifications and design can be subject to change without notice 1.27
Technical data
Service conditions Max Pressure: PN25 e PN40 Max Temperature: 280/300C (According to DIN 7081 for glasses, see page 1.69)
View Standard: adjustable on 360in the installation phase Note: depending on operating conditions, each element may have one or more internal reinforcements
Distance (Centre-to-centre) Standard: see below table (Distance adjustable - 0 mm / + 10 mm) Option: On request intermediate distances and over 3.000 mm
Gaskets Standard: grahite/copper Option: graphite/AISI 316 or PTFE/AISI316
Shut-off cocks Type DS GR18: cylindrical plug type - Straight type - Quick 90closing Handling: lever operated with PP handle (Standard: right; Option: left) Process connections: Standard flanges: UNI PN40 DN15-20-25 ANSI#150-300-600/RF DN - - 1 Standard threaded unions: BSP-M - NPT-M - Options: further connections types or direct connections to the process without shut-off cocks (see page 1.49) Vent: Standard: blind Option: see page 1.50 Drain: Standard: cock type D12 threaded Option: see page 1.50
Glasses Tranparent - Borosilicate glass, extra hard and thermally pre-stressed - According to DIN 7081 Standard: fitted with type A (see page 1.69)
Accessories See from page 1.55
Weights Housing type DS TCR: see below table Cocks type DS GR18: Kg. 7,4 approx. (with flanges UNI DN20 PN40)
Tightening torque of housing screws Standard: 35 Nm
Spare parts Housing type DS TCR: see from page 1.69 (drawing with components and parts list see page 1.64) Cocks type DS GR18: see from page 1.72 (drawing with components and parts list see pag. 1.66)
CODE TYPE BODY DISTANCE SL DISTANCE HL VISIBLE GLASS WEIGHT Length Pipes L = 57 Pipes L = 72 Length Length Housing [mm] -0/+10 mm -0/+10 mm [mm] [mm] [Kg]
Rev.0 Specifications and design can be subject to change without notice 1.2D
Technical data
Service conditions Max Pressure: PN25 e PN40 Max Temperature: 280/300C (According to DIN 7081 for glasses, see page 1.69)
View Standard: adjustable on 360in the installation phase Note: depending on operating conditions, each element may have one or more internal reinforcements
Distance (Centre-to-centre) Standard: see below table (Distance adjustable - 0 mm / + 10 mm) Option: On request intermediate distances and over 3.000 mm
Gaskets Standard: grahite/copper Option: graphite/AISI 316 or PTFE/AISI316
Shut-off valves Type DS SHV: globe type Handling: by handwheel Process connections: Standard flanges: UNI PN40 DN15-20-25 ANSI#150-300-600/RF DN - - 1 Standard threaded unions: BSP-M - NPT-M - Options: further connections types or direct connections to the process without shut-off valves (see page 1.53) Vent: Standard: blind Option: see page 1.54 Drain: Standard: valve type DHV threaded Option: see page 1.54
Glasses Tranparent - Borosilicate glass, extra hard and thermally pre-stressed - According to DIN 7081 Standard: fitted with type A (see page 1.69)
Accessories See from page 1.55
Weights Housing type DS TCR: see below table Valves type DS SHV: Kg. 11,8 approx. (with flanges UNI DN20 PN40)
Tightening torque of housing screws Standard: 35 Nm
Spare parts Housing type DS TCR: see from page 1.69 (drawing with components and parts list see page 1.64) Valves type DS GR18: see from page 1.74 (drawing with components and parts list see pag. 1.68)
CODE TYPE BODY DISTANCE SL DISTANCE HL VISIBLE GLASS WEIGHT Length Pipes L = 57 Pipes L = 72 Length Length Housing [mm] -0/+10 mm -0/+10 mm [mm] [mm] [Kg]
Rev.0 Specifications and design can be subject to change without notice 1.2G
Technical data
Service conditions Max Pressure: PN40 Max Temperature: 280/300C (According to DIN 7081 for glasses, see page 1.69)
View Standard: adjustable on 360in the installation phase
Distance (Centre-to-centre) Standard: see below table (Distance adjustable - 0 mm / + 10 mm) Option: On request intermediate distances and over 3.000 mm
Gaskets Standard: grahite/copper Option: graphite/AISI 316 or PTFE/AISI316
Shut-off cocks Type DS GR18: cylindrical plug type - Straight type - Quick 90closing Handling: lever operated with PP handle (Standard: right; Option: left) Process connections: Standard flanges: UNI PN40 DN15-20-25 ANSI#150-300-600/RF DN - - 1 Standard threaded unions: BSP-M - NPT-M - Options: further connections types or direct connections to the process without shut-off cocks (see page 1.49) Vent: Standard: blind Option: see page 1.50 Drain: Standard: cock type D12 threaded Option: see page 1.50
Glasses Tranparent - Borosilicate glass, extra hard and thermally pre-stressed - According to DIN 7081 Standard: fitted with type B (see page 1.69) Option: type A (see page 1.69)
Accessories See from page 1.55
Weights Housing type DS TMR: see below table Cocks type DS GR18: Kg. 7,4 approx. (with flanges UNI DN20 PN40)
Tightening torque of housing screws Standard: 35 Nm
Spare parts Housing type DS TMR: see from page 1.69 (drawing with components and parts list see page 1.64) Cocks type DS GR18: see from page 1.72 (drawing with components and parts list see pag. 1.66)
CODE TYPE BODY DISTANCE SL DISTANCE HL VISIBLE GLASS WEIGHT Length Pipes L = 57 Pipes L = 72 Length Length Housing [mm] -0/+10 mm -0/+10 mm [mm] [mm] [Kg]
Rev.0 Specifications and design can be subject to change without notice 1.2-
Technical data
Service conditions Max Pressure: PN40 Max Temperature: 280/300C (According to DIN 7081 for glasses, see page 1.69)
View Standard: adjustable on 360in the installation phase
Distance (Centre-to-centre) Standard: see below table (Distance adjustable - 0 mm / + 10 mm) Option: On request intermediate distances and over 3.000 mm
Gaskets Standard: grahite/copper Option: graphite/AISI 316 or PTFE/AISI316
Shut-off valves Type DS SHV: globe type Handling: by handwheel Process connections: Standard flanges: UNI PN40 DN15-20-25 ANSI#150-300-600/RF DN - - 1 Standard threaded unions: BSP-M - NPT-M - Options: further connections types or direct connections to the process without shut-off valves (see page 1.53) Vent: Standard: blind Option: see page 1.54 Drain: Standard: valve type DHV threaded Option: see page 1.54
Glasses Tranparent - Borosilicate glass, extra hard and thermally pre-stressed - According to DIN 7081 Standard: fitted with type B (see page 1.69) Option: type A (see page 1.69)
Accessories See from page 1.55
Weights Housing type DS TMR: see below table Valves type DS SHV: Kg. 11,8 approx. (with flanges UNI DN20 PN40)
Tightening torque of housing screws Standard: 35 Nm
Spare parts Housing type DS TMR: see from page 1.69 (drawing with components and parts list see page 1.64) Valves type DS SHV: see from page 1.74 (drawing with components and parts list see pag. 1.68)
CODE TYPE BODY DISTANCE SL DISTANCE HL VISIBLE GLASS WEIGHT Length Pipes L = 57 Pipes L = 72 Length Length Housing [mm] -0/+10 mm -0/+10 mm [mm] [mm] [Kg]
Rev.0 Specifications and design can be subject to change without notice 1.26
Technical data
Service conditions Max Pressure: PN40; Class 300 (A105: 51 bar @ 38C; AISI 316L: 49,6 bar @ 38C) Max Temperature: 280/300C (According to DIN 7081 for glasses, see page 1.69)
View Standard: front, on request lateral (right or left) adjustable in the production phase Note: depending on operating conditions, each element may have one or more internal reinforcements
Distance (Centre-to-centre) Standard: see below table for mimimum distance (Fixed distance, not adjustable) Option: On request intermediate distances and over 3.000 mm
Gaskets Standard: grahite/copper Option: graphite/AISI 316 or PTFE/AISI316
Shut-off cocks Type DS GR18: cylindrical plug type - Straight type - Quick 90closing Handling: lever operated with PP handle (Standard: right; Option: left) Process connections: Standard flanges: UNI PN40 DN15-20-25 ANSI#150-300-600/RF DN - - 1 Standard threaded unions: BSP-M - NPT-M - Options: further connections types or direct connections to the process without shut-off cocks (see page 1.51) Vent: Standard: threaded with plug Option: see page 1.52 Drain: Standard: cock type D12 threaded Option: see page 1.52
Glasses Tranparent - Borosilicate glass, extra hard and thermally pre-stressed - According to DIN 7081 Standard: fitted with type A (see page 1.69)
Accessories See from page 1.55
Weights Housing type DS TCF: see below table Cocks type DS GR18: Kg. 7,4 approx. (with flanges UNI DN20 PN40)
Tightening torque of housing screws Standard: 35 Nm
Spare parts Housing type DS TCF: see from page 1.69 (drawing with components and parts list see page 1.64) Cocks type DS GR18: see from page 1.72 (drawing with components and parts list see page 1.66)
CODE TYPE BODY DISTANCE SL VISIBLE GLASS WEIGHT Length MINIMUM Length Length Housing [mm] [mm] [mm] [mm] [Kg]
GLASS LEVEL GAUGE TRANSPARENT TYPE PN40 / Class 300
DS LG - TCF GR18
Code: DS LG TCF- /40/RF-GR18//-M-CS/CS
Rev.0 Specifications and design can be subject to change without notice 1.89
Technical data
Service conditions Max Pressure: PN40; Class 300 (A105: 51 bar @ 38C; AISI 316L: 49,6 bar @ 38C) Max Temperature: 280/300C (According to DIN 7081 for glasses, see page 1.69)
View Standard: front, on request lateral (right or left) adjustable in the production phase Note: depending on operating conditions, each element may have one or more internal reinforcements
Distance (Centre-to-centre) Standard: see below table for mimimum distance (Fixed distance, not adjustable) Option: On request intermediate distances and over 3.000 mm
Gaskets Standard: grahite/copper Option: graphite/AISI 316 or PTFE/AISI316
Shut-off valves Type DS SHV: globe type Handling: by handwheel Process connections: Standard flanges: UNI PN40 DN15-20-25 ANSI#150-300-600/RF DN - - 1 Standard threaded unions: BSP-M - NPT-M - Options: further connections types or direct connections to the process without shut-off valves (see page 1.53) Vent: Standard: threaded with plug Option: see page 1.54 Drain: Standard: valve type DHV threaded Option: see page 1.54
Glasses Tranparent - Borosilicate glass, extra hard and thermally pre-stressed - According to DIN 7081 Standard: fitted with type A (see page 1.69)
Accessories See from page 1.55
Weights Housing type DS TCF: see below table Valves type DS SHV: Kg. 11,8 approx. (with flanges UNI DN20 PN40)
Tightening torque of housing screws Standard: 35 Nm
Spare parts Housing type DS TCF: see from page 1.69 (drawing with components and parts list see page 1.64) Valves type DS SHV: see from page 1.74 (drawing with components and parts list see page 1.68)
CODE TYPE BODY DISTANCE SL VISIBLE GLASS WEIGHT Length MINIMUM Length Length Housing [mm] [mm] [mm] [mm] [Kg]
GLASS LEVEL GAUGE TRANSPARENT TYPE PN40 / Class 300
DS LG - TCF SHV
Code: DS LG TCF- /40/RF-SHV//-M-CS/CS
Rev.0 Specifications and design can be subject to change without notice 1.81
Technical data
Service conditions Max Pressure: PN40 e PN64; Class 300 (A105: 51 bar @ 38C; AISI 316L: 49,6 bar @ 38C) Max Temperature: 280/300C (According to DIN 7081 for glasses, see page 1.69)
View Standard: front, on request lateral (right or left) adjustable in the production phase
Distance (Centre-to-centre) Standard: see below table for mimimum distance (Fixed distance, not adjustable) Option: On request intermediate distances and over 3.000 mm
Gaskets Standard: grahite/copper Option: graphite/AISI 316 or PTFE/AISI316
Shut-off cocks Type DS GR18: cylindrical plug type - Straight type - Quick 90closing Handling: lever operated with PP handle (Standard: right; Option: left) Process connections: Standard flanges: UNI PN40-64 DN15-20-25 ANSI#150-300-600/RF DN - - 1 Standard threaded unions: BSP-M - NPT-M - Options: further connections types or direct connections to the process without shut-off cocks (see page 1.51) Vent: Standard: threaded with plug Option: see page 1.52 Drain: Standard: cock type D12 threaded Option: see page 1.52
Glasses Tranparent - Borosilicate glass, extra hard and thermally pre-stressed - According to DIN 7081 Standard: fitted with type B (see page 1.69) Option: type A (see page 1.69)
Accessories See from page 1.55
Weights Housing type DS TMF: see below table Cocks type DS GR18: Kg. 7,4 approx. (with flanges UNI DN20 PN40)
Tightening torque of housing screws Standard: 35 Nm
Spare parts Housing type DS TMF: see from page 1.69 (drawing with components and parts list see page 1.64) Cocks type DS GR18: see from page 1.72 (drawing with components and parts list see page 1.66)
CODE TYPE BODY DISTANCE SL VISIBLE GLASS WEIGHT Length MINIMUM Length Length Housing [mm] [mm] [mm] [mm] [Kg]
GLASS LEVEL GAUGE TRANSPARENT TYPE PN40 and PN64 / Class 300
DS LG - TMF GR18
Code: DS LG TMF- /40/RF-GR18//-M-CS/CS
Rev.0 Specifications and design can be subject to change without notice 1.82
Technical data
Service conditions Max Pressure: PN40 e PN64; Class 300 (A105: 51 bar @ 38C; AISI 316L: 49,6 bar @ 38C) Max Temperature: 280/300C (According to DIN 7081 for glasses, see page 1.69)
View Standard: front, on request lateral (right or left) adjustable in the production phase
Distance (Centre-to-centre) Standard: see below table for mimimum distance (Fixed distance, not adjustable) Option: On request intermediate distances and over 3.000 mm
Gaskets Standard: grahite/copper Option: graphite/AISI 316 or PTFE/AISI316
Shut-off valves Type DS SHV: globe type Handling: by handwheel Process connections: Standard flanges: UNI PN40-64 DN15-20-25 ANSI#150-300-600/RF DN - - 1 Standard threaded unions: GAS-M - NPT-M - Options: further connections types or direct connections to the process without shut-off valves (see page 1.53) Vent: Standard: threaded with plug Option: see page 1.54 Drain: Standard: valve type DHV threaded Option: see page 1.54
Glasses Tranparent - Borosilicate glass, extra hard and thermally pre-stressed - According to DIN 7081 Standard: fitted with type B (see page 1.69) Option: type A (see page 1.69)
Accessories See from page 1.55
Weights Housing type DS TMF: see below table Valves type DS SHV: Kg. 11,8 approx. (with flanges UNI DN20 PN40)
Tightening torque of housing screws Standard: 35 Nm
Spare parts Housing type DS TMF: see from page 1.69 (drawing with components and parts list see page 1.64) Valves type DS SHV: see from page 1.74 (drawing with components and parts list see page 1.68)
CODE TYPE BODY DISTANCE SL VISIBLE GLASS WEIGHT Length MINIMUM Length Length Housing [mm] [mm] [mm] [mm] [Kg]
GLASS LEVEL GAUGE TRANSPARENT TYPE PN40 and PN64 / Class 300
DS LG - TMF SHV
Code: DS LG TMF- /40/RF-SHV//-M-CS/CS
Rev.0 Specifications and design can be subject to change without notice 1.88
Technical data
Service conditions Max Pressure: PN64 e PN100; Class 600 (A105: 102 bar @ 38C; AISI 316L: 99,3 bar @ 38C) Max Temperature: 280/300C (According to DIN 7081 for glasses, see page 1.69)
View Standard: front, on request lateral (right or left) adjustable in the production phase Note: depending on operating conditions, each element may have one or more internal reinforcements
Distance (Centre-to-centre) Standard: see below table for mimimum distance (Fixed distance, not adjustable) Option: On request intermediate distances and over 2.000 mm
Gaskets Standard: grahite/copper Option: graphite/AISI 316 or PTFE/AISI316
Shut-off cocks Type DS GR18: cylindrical plug type - Straight type - Quick 90closing Handling: lever operated with PP handle (Standard: right; Option: left) Process connections: Standard flanges: UNI PN64-100 DN20 - DN25 ANSI#600/RF DN - 1 Standard threaded unions: BSP-M - 1 NPT-M - 1 Options: further connections types or direct connections to the process without shut-off cocks (see page 1.51) Vent: Standard: threaded with plug Option: see page 1.52 Drain: Standard: cock type D12 threaded Option: see page 1.52
Glasses Tranparent - Borosilicate glass, extra hard and thermally pre-stressed - According to DIN 7081 Standard: fitted with type B (see page 1.69)
Accessories See from page 1.55
Weights Housing type DS TPF: see below table Cocks type DS GR18: Kg. 9,2 approx. (with flanges UNI DN20 PN100)
Tightening torque of housing screws Standard: 75 Nm
Spare parts Housing type DS TPF: see from page 1.69 (drawing with components and parts list see page 1.65) Cocks type DS GR18: see from page 1.72 (drawing with components and parts list see page 1.66)
CODE TYPE BODY DISTANCE SL VISIBLE GLASS WEIGHT Length MINIMUM Length Length Housing [mm] [mm] [mm] [mm] [Kg]
GLASS LEVEL GAUGE TRANSPARENT TYPE PN64 and PN100 / Class 600
DS LG - TPF GR18
Code: DS LG TPF- /100/RF-GR18//-M-CS/CS
Rev.0 Specifications and design can be subject to change without notice 1.8H
Technical data
Service conditions Max Pressure: PN64 e PN100; Class 600 (A105: 102 bar @ 38C; AISI 316L: 99,3 bar @ 38C) Max Temperature: 280/300C (According to DIN 7081 for glasses, see page 1.69)
View Standard: front, on request lateral (right or left) adjustable in the production phase Note: depending on operating conditions, each element may have one or more internal reinforcements
Distance (Centre-to-centre) Standard: see below table for mimimum distance (Fixed distance, not adjustable) Option: On request intermediate distances and over 2.000 mm
Gaskets Standard: grahite/copper Option: graphite/AISI 316 or PTFE/AISI316
Shut-off valves Type DS SHV: globe type Handling: by handwheel Process connections: Standard flanges: UNI PN64-100 DN15-20-25 ANSI#600/RF DN - 1 Standard threaded unions: BSP-M - 1 NPT-M - 1 Options: further connections types or direct connections to the process without shut-off valves (see page 1.53) Vent: Standard: threaded with plug Option: see page 1.54 Drain: Standard: valve type DHV threaded Option: see page 1.54
Glasses Tranparent - Borosilicate glass, extra hard and thermally pre-stressed - According to DIN 7081 Standard: fitted with type B (see page 1.69)
Accessories See from page 1.55
Weights Housing type DS TPF: see below table Valves type DS DS SHV: Kg. 13,5 approx. (with flanges UNI DN20 PN100)
Tightening torque of housing screws Standard: 75 Nm
Spare parts Housing type DS TPF: see from page 1.69 (drawing with components and parts list see page 1.65) Valves type DS SHV: see from page 1.74 (drawing with components and parts list see page 1.68)
CODE TYPE BODY DISTANCE SL VISIBLE GLASS WEIGHT Length MINIMUM Length Length Housing [mm] [mm] [mm] [mm] [Kg]
GLASS LEVEL GAUGE TRANSPARENT TYPE PN64 and PN100 / Class 600
DS LG - TPF GR18
Code: DS LG TPF- /100/RF-GR18//-M-CS/CS
Rev.0 Specifications and design can be subject to change without notice 1.87
Technical data
Service conditions Max Pressure: PN100; Class 600 (A105: 102 bar @ 38C; AISI 316L: 99,3 bar @ 38C) and PN160; Class 900 (A105: 153,1 bar @ 38C; AISI 316L: 148,9 bar @ 38C) Max Temperature: 280/300C (According to DIN 7081 for glasses, see page 1.69)
View Standard: front, on request lateral (right or left) adjustable in the production phase
Distance (Centre-to-centre) Standard: see below table for mimimum distance (Fixed distance, not adjustable) Option: On request intermediate distances and over 2.000 mm
Gaskets Standard: grahite/copper Option: graphite/AISI 316 or PTFE/AISI316
Shut-off cocks Type DS GR18: cylindrical plug type - Straight type - Quick 90closing Handling: lever operated with PP handle (Standard: right; Option: left) Process connections: Standard flanges: UNI PN100-160 DN20 - DN25 ANSI#600-900/RF DN - 1 Standard threaded unions: BSP-M - 1 NPT-M - 1 Options: further connections types or direct connections to the process without shut-off cocks (see page 1.51) Vent: Standard: threaded with plug Option: see page 1.52 Drain: Standard: cock type D12 threaded Option: see page 1.52
Glasses Tranparent - Borosilicate glass, extra hard and thermally pre-stressed - According to DIN 7081 Standard: fitted with type B (see page 1.69)
Accessories See from page 1.55
Weights Housing type DS TXF: see below table Cocks type DS GR18: Kg. 9,2 approx. (with flanges UNI DN20 PN100)
Tightening torque of housing screws Standard: 75 Nm
Spare parts Housing type DS TPF: see from page 1.69 (drawing with components and parts list see page 1.65) Cocks type DS GR18: see from page 1.72 (drawing with components and parts list see page 1.66)
CODE TYPE BODY DISTANCE SL VISIBLE GLASS WEIGHT Length MINIMUM Length Length Housing [mm] [mm] [mm] [mm] [Kg]
GLASS LEVEL GAUGE TRANSPARENT TYPE PN100 and PN160 / Class 600 and 900
DS LG - TXF GR18
Code: DS LG TXF- /160/RF-GR18//-M-CS/CS
Rev.0 Specifications and design can be subject to change without notice 1.8D
Technical data
Service conditions Max Pressure: PN100; Class 600 (A105: 102 bar @ 38C; AISI 316L: 99,3 bar @ 38C) and PN160; Class 900 (A105: 153,1 bar @ 38C; AISI 316L: 148,9 bar @ 38C) Max Temperature: 280/300C (According to DIN 7081 for glasses, see page 1.69)
View Standard: front, on request lateral (right or left) adjustable in the production phase
Distance (Centre-to-centre) Standard: see below table for mimimum distance (Fixed distance, not adjustable) Option: On request intermediate distances and over 2.000 mm
Gaskets Standard: grahite/copper Option: graphite/AISI 316 or PTFE/AISI316
Shut-off valves Type DS SHV: globe type Handling: by handwheel Process connections: Standard flanges: UNI PN100-160 DN20-25 ANSI#600-900/RF DN - 1 Standard threaded unions: BSP-M - 1 NPT-M - 1 Options: further connections types or direct connections to the process without shut-off valves (see page 1.53) Vent: Standard: threaded with plug Option: see page 1.54 Drain: Standard: cock type DHV threaded Option: see page 1.54
Glasses Tranparent - Borosilicate glass, extra hard and thermally pre-stressed - According to DIN 7081 Standard: fitted with type B (see page 1.69)
Accessories See from page 1.55
Weights Housing type DS TXF: see below table Valves type DS SHV: Kg. 13,5 approx. (with flanges UNI DN20 PN100)
Tightening torque of housing screws Standard: 75 Nm
Spare parts Housing type DS TPF: see from page 1.69 (drawing with components and parts list see page 1.65) Valves type DS SHV: see from page 1.74 (drawing with components and parts list see page 1.68)
CODE TYPE BODY DISTANCE SL VISIBLE GLASS WEIGHT Length MINIMUM Length Length Housing [mm] [mm] [mm] [mm] [Kg]
GLASS LEVEL GAUGE TRANSPARENT TYPE PN100 and PN160 / Class 600 and 900
DS LG - TXF SHV
Code: DS LG TXF- /160/RF-SHV//-M-CS/CS
This type of level gauge is designed to be welded on to the tank and withstand the pressure inside it. It is made from both carbon steel and stainless steel and can take reflex and transparent glasses. Reflex glasses are recommended as they improve visibility. In order to prevent warping or distortions while the level gauge is in service, the technician tasked with installing the product must reinforce the wall of the tank where the gauge is to be welded on. For visible lengths exceeding 320 mm, we recommend welding additional gauges on different axes to avoid weakening the tank structure. During welding operations (which must only be carried out prior to gauge assembly), special care must be taken to avoid exposing the weld-on base to high temperatures for long periods of time as this may comprise the resistance of the gauge when in operation. WELD-ON LEVEL GAUGES Operating limits / Conditions: Process: Max. pressure: ANSI 300 rating (A105: 51 bar; AISI 316L: 49.6 bar) @ 38C Max. temperature: 300C (max. temperature allowed by borosilicate glasses as per the DIN 7081 standard - see page 1.69) On request: ANSI 600 rating (A105: 102 bar; AISI 316L: 99.3 bar) @ 38C Materials / Specifications Weld-on base: - standard: flat with a hole running along the whole visible length - additional options: with radius (state the tank radius); with 2 holes (: 15 mm) at the far ends of the visible length Wetted parts: - standard: galvanized ASTM A105 or A105 LF2 carbon steel, ASTM A182 F316L stainless steel - additional options: on request Non-wetted parts: - standard: galvanized carbon steel, AISI 316L stainless steel - additional options: on request Gaskets: (see page 1.71) - standard: graphite - additional options: PTFE; other extras on request Glasses: (see page 1.69) - reflex or transparent borosilicate glasses, thermally pre-stressed and extra hard as per the DIN 7081 standard Spare parts: Our spare parts are interchangeable with those of major international manufacturers. For the full range of complete sets, turn to the spares section on page 1.69. Accessories: Mica or PCTFE protective shield (for transparent glass only), calibrated scale, non-frosting extension, minimum level arrow (see page 1.55 for details) Certifications (on request): - NACE MR0175 - Others on request This kind of level gauge can only be tested once it has been welded on to the tank in question. All DIESSE components are individually checked and tested in accordance with company quality procedures and the industry regulations currently in effect. Certificates can be issued on request. Rev.0 Specifications and design can be subject to change without notice 1.8-
Technical data
Service conditions Max Pressure: PN40; Class 300 (A105: 51 bar @ 38C; AISI 316L: 49,6 bar @ 38C) Option: PN100; Class 600 (A105: 102 bar @ 38C; AISI 316L: 99,3 bar @ 38C) Max Temperature: 280/300C (According to DIN 7081 for glasses, see page 1.69)
Total length Standard: see below table Option: On request intermediate lengths and over 1.080 mm
Process connections Standard: Drilling on the whole visible length Option: Two holes 15 mm at the opposite ends of the visible length or two pipes welded at the centre-to-centre distance requested (see below drawing)
Execution of housing to be weld Standard: flat Option: On request with back radius
Glasses Reflex and Tranparent - Borosilicate glass, extra hard and thermally pre-stressed - According to DIN 7081 Standard: fitted with type B (see page 1.69) Option: type A (see page 1.69)
Accessories See from page 1.55
Weights See below table
Tightening torque of screws Standard: 25-30 Nm
Spare parts See from page 1.69
Recommendation For requested visible lenghts over 320 mm, to avoid the tank structure weakness, it is recommended to weld on the tank more level gauges positioned on different axes
CODE TYPE BODY VISIBLE GLASS WEIGHT Length Length Length Housing [mm] [mm] [mm] [Kg]
WELD-ON GLASS LEVEL GAUGE REFLEX and TRANSPARENT PN40 / Class 300
DS LG - RCW / TCW
Code: DS LG RCW-CS/CS REFLEX Code: DS LG TCW-CS/CS TRANSPARENT
Code: DS LG RCWSP-CS/CS REFLEX Code: DS LG TCWSP-CS/CS TRANSPARENT
LEVEL GAUGES WITH GLASS TUBE Level gauges with a glass tube are an inexpensive but valid option for checking the level of non-hazardous or non-reactive fluids in unpressurised tanks. An external metal protection of the glass tube is recommended. Available configurations: Borosilicate glass tube. Diameter: 16 mm; thickness: 2.5 mm. Centre-to-centre distance with a single tube: 3000 mm. Visible length (without protection): centre-to-centre distance - 95 mm. Visible length (with protection): centre-to-centre distance - 135 mm. Spare glass tube: centre-to-centre distance - 30 mm. Spare protection: centre-to-centre distance - 100 mm. In the event of greater centre-to-centre distances, additional pipes can be connected up via middle terminals for glass tube Operating limits / Conditions: Process: Max. pressure: 5 bar @ 38C (the max. pressure also depends on the length and temperature) Max. temperature: 120C The product is NOT suitable for use in the following instances: if it is likely to be exposed to vibrations (glass tube will break) if the installation is situated by a walkway (possibility of blows/impact) if exposed to steam (shortens glass tube life) Materials / Specifications Transparent tube: grade 3.3 borosilicate glass Glass protection (optional): AISI 304 stainless steel Wetted parts: - standard: galvanized ASTM A105 or A105 LF2 carbon steel, ASTM A182 F316L stainless steel - additional options: on request Non-wetted parts: - standard: galvanized carbon steel, AISI 316/316L stainless steel - additional options: on request Gaskets: (see page 1.72) Cocks: - standard: graphite/copper (ASTM A105), graphite/AISI 316 (A105 LF2 and ASTM A182 F316L) - additional options: PTFE; other extras on request Sealing gasket: - standard: EPDM - additional options: graphite or PTFE; other extras on request Shut-off: (see page 1.49) - standard: upper valve and lower valve (side/side) - additional options: on request Drain: (see page 1.50) - standard: threaded valve - additional options: on request Vent: (see page 1.50) - standard: blind - additional options: threaded with plug; other extras on request Tank connections: Flanged: - UNI standard: PN40 DN15 / DN20 / DN25 - ANSI standard: #150 DN / / 1 - additional options: on request Threaded: - BSP (GAS) standard: -M / -M - NPT standard: -M / -M Weld-on: from to 1 BW or SW Option: further connections type or direct connections to the process without shut-off cocks (see page 1.49 for more details) Shut-off cocks, drain cock and vent cock: - Cylindrical plug cocks Spares: Our spare parts are interchangeable with those of major international manufacturers. For the full range of complete sets, turn to the spares section on page 1.69. Accessories: Stainless steel "U" protection, lower and/or upper safety ball, pusher for safety ball, calibrated, non-frosting extension, minimum level arrow, continuous reading, cocks handles lock (see page 1.55 for details) Certifications (on request): --- For this kind of gauge the pressure test can be performed only on the cocks (on request), glass tubes cannot be tested due to their fragility. All DIESSE components are individually checked and tested in accordance with company quality procedures and the industry regulations currently in effect. Certificates can be issued on request. Rev.0 Specifications and design can be subject to change without notice 1.H1
Technical data
Service conditions Max Pressure: max: 5 barg (Max. pressure also function of the length and the temperature) Max Temperature: 120C
View Standard: adjustable on 360in the installation phase (rotating the "U" shaped protection)
Distance (Centre-to-centre) On request Max with a single glass tube 3.000 mm Option: on request are available distances over 3.000 mm using the middle terminals to connect more glass tubes
Visible length [VL]
With shut-off cocks type DS GR18
With the U shaped protection Visible length [VL] = Centre-to-centre distance [M] - 135 mm (with extended stuffing box covers to fasten the "U" shaped protection)
Without protection Visible length [VL] = Centre-to-centre distance [M] - 95 mm (with standard stuffing box covers)
With shut-off cocks type DS MT18
With the U shaped protection Visible length [VL] = Centre-to-centre distance [M] - 145 mm (with extended stuffing box covers to fasten the "U" shaped protection)
Without protection Visible length [VL] = Centre-to-centre distance [M] - 105 mm (with standard stuffing box cover)
Shut-off cocks Type DS GR18: cylindrical plug type - Straight type - Quick 90closing Type DS MT18: cylindrical plug type with monolithic body - Straight type - Quick 90closing (see page 1.47) Handling: lever operated with PP handle (Standard: right; Option: left)
Process connections: Standard flanges: UNI PN16/40 DN15-20-25 ANSI#150/RF DN - - 1 Standard threaded unions: BSP-M - NPT-M - Options: further connections types or direct connections to the process without cocks (see page 1.49) Vent: Standard: blind Option: see page 1.50 Drain: Standard: cock type D12 threaded Option: see page 1.50
Accessories See from page 1.55
Weights Cocks type DS GR18: Kg. 7,4 approx. (with flanges UNI DN20 PN40) Cocks type DS MT18: Kg. 6,1 approx. (with flanges UNI DN20 PN40)
Spare parts Glass tube: Length = Centre-to-centre distance [M] - 30 mm Protection: Length = Centre-to-centre distance [M] - 100 mm Cocks type DS GR18: see from page 1.72 (drawing with components and parts list see page 1.66) Cocks type DS MT18: see from page 1.64 (drawing with components and parts list see page 1.67)
Utilization
The product is NOT suitable for use in the following instances: if it is likely to be exposed to vibrations (glass tube will break) if the installation is situated by a walkway (possibility of blows/impact) if exposed to steam (shortens glass tube life)
LEVEL GAUGE WITH GLASS TUBE AND U SHAPED PROTECTION
DS LG - TVR GR18 / MT18
Code: DS LG TVR- /16/RF-GR18//-M-CS/CS
Code: DS LG TVR- /16/RF-MT18//-M-CS/CS
MIDDLE TERMINAL - CODE: MJT
DIESSE has been granted a European patent for the glass level gauge equipped with a microwave transmitter, which allows to get, with 2/4-wire, 4-20mA, Hart-Profibus PA or Foundation fieldbus output signal. Traditional visual readings can also be taken by glasses. The equipment is suitable for use with most liquids and can be installed in both non-explosive and in potentially explosive atmospheres (ATEX certified). In addition, it can be used as an overflow safety device thanks to the SIL (safety integrity level) of the microwave transmitter. The standout features of this type of gauge are as follows: HOW DOES IT WORK? High frequency microwave pulses are guided along a cable positioned in the centre of the level gauge housing. When the pulses reach the surface of the fluid, they are reflected back up the guide to electronic processors. A microcontroller then processes the reflected microwaves, converting them into legible level or volume data.
Remote and in situ indication/transmission of liquid level
Ability to programme adjustable thresholds (alarm and/or control signals) in proportion to the gauge length Automati c anal ogue/di gi tal control vi a system accessories (relays, regulators etc.) Actual/visible level readings appear in real time with the process management analogue/digital parameters. No risk of discordance Two types of parameters on a single process connection: visual mechanical parameters and analogue/digital control parameters Pressure and temperature readings can be taken in addition to the usual metric level readings and are shown on one or more displays Control and alarm signals can be remotely transmitted LEVEL GAUGES WITH MICROWAVE TRANSMITTER TECHNICAL SPECIFICATIONS OF MICROWAVE TRANSMITTER: MATERIALS: Cable: 316 stainless steel; diameter: 1 mm Gasket: FPM (Viton), EPDM or Kalrez 6375 Process connection: 316L stainless steel, BSP (GAS); other materials available on request COVER/PROTECTION: Resin, aluminium or 316L stainless steel ELECTRICAL CONNECTION: M20 x 1,5 mm or NPT OPERATING CONDITIONS (*): Pressure: up to 400 bar Operating temperature: -200 + 400C Ambient temperature: -20 + 80C OUTPUT SIGNAL: Standard: 420mA, Hart-Profibus PA or Foundation fieldbus ACCURACY: +/- 5 mm ELECTRONIC POWER SUPPLY: (420mA/Hart loop powered) Standard (non Ex): 14-36 VDC EEx ia version: 10-30 VDC EEx d version: 20-36 VDC OPTIONAL ACCESSORIES: Integrated or remote display and calibration module INGRESS PROTECTION: IP 67 EXPLOSION PROTECTION: ATEX II 1G, 1/2G, 2G EEx ia IIC T6 (depending on the model) ATEX II 1/2G, 2G EEx d ia IIC T6 (*) the operating limits of the glass level gauge with microwave transmitter are the same as those listed in relevant sections of the reflex and transparent level gauge pages Accessories / Certifications: Please refer to the reflex/transparent glass level gauge sections.