L CR PG 002
L CR PG 002
L CR PG 002
Contents
Product data
Custom-built pumps Variant overview Performance range Type keys Codes How to read a curve chart Curve conditions 3 3 4 5 5 6 6
Pumps
Horizontally mounted pumps Pumps with bearing flange Belt-driven pumps Pumps for liquid temperatures down to 40F Carbon-free pumps Silicon-free pumps Pumps for pharmaceutical and biotechnological applications TriClamp Cleaned and dried pumps Electropolished pumps 20 22 24 26 27 27 28 28 29 29
Motors
General information Efficiency class Benefits offered by high efficiency motors Pump range NEMA TEFC Motor Efficiency Standards & Baldor Super-E Efficiency 7 8 8 8 8
Low-NPSH pumps
Low-NPSH pumps Performance curves CR 3 CR 5 CR 10 CR 15 CR 20 CR 32 CR 45 CR 64 30 31 31 32 33 34 35 36 37 38
Shaft seals
Shaft seal with FFKM or FXM O-ring material Hybrid shaft seal 14 15
4-pole versions
CR pumps with 4-pole motors Performance curves CR 1 CR 3 CR 5 CR 10 CR 15 CR 20 CR 32 CR 45 CR 64 CR 90 39 40 40 41 42 43 44 45 46 47 48 49
Certificates
Certificates ATEX-approved CR pumps 16 17
MAGdrive
Magnetic-drive pump (MAGdrive) 18
LiqTec
LiqTecTM dry-running sensor 19
Product data
Custom-built pumps
Custom-built pumps
Grundfos offers a wide range of custom-built variants of the CR type range for a variety of demanding industrial applications. Featuring superior reliability like the standard products, the custom-built pumps meet the strictest demands for durability and trouble-free operation. With these multistage in-line pumps, based on the wellknown CR type range, Grundfos meets the customers needs for pumps capable of handling high-temperature liquids high-viscosity liquids such as paints and varnishes volatile and explosive liquids and aggressive liquids special installation requirements.
Variant overview
The overview of custom-built solutions refers only to the CR, CRI, CRN range. The overview is divided into the following parts: Motors Shaft seals Pumps.
Motors
The standard range of motors meets a wide variety of application demands. For special applications or operating conditions, Grundfos offers custom-built motors such as explosion-proof motors for hazardous atmospheres (including ATEX approved motors) motors with anti-condensation heating unit for humid environments
High efficiency motors Motors with different enclosure class Oversized motors motors with thermal protection.
Shaft seals
Grundfos offers a wide range of special-purpose shaft seals and shaft seal arrangements for the pumping of liquids such as aggressive or corrosive liquids particle-carrying liquids toxic or explosive liquids high-viscosity or sticky liquids and for operating under conditions such as extremely high pressures extremely high or low temperatures.
Pumps
The pump can be custom-built for special operating conditions and applications such as high inlet pressures high-pressure systems up to 725 psi horizontal mounting applications demanding belt-driven pumps pharmaceutical and biotechnological applications applications requiring low NPSH.
GR5357
Product data
Custom-built pumps
Performance range
H [m]
400 300 200
H [ft]
1500 1000 800 600 400
60 Hz
100 80 60 50 40 30 20
300 200 150 100 80 60 4 6 8 10 20 30 40 60 80 100 200 300 400 600 800
CR 1s CRI 1s CRN 1s CR 1 CRI 1 CRN 1 CR 3 CRI 3 CRN 3 CR 5 CRI 5 CRN 5 CR 10 CRI 10 CRN 10 CR 15 CRI 15 CRN 15 CR 20 CRI 20 CRN 20 CR 32 CRN 32 CR 45 CRN 45 CR 64 CRN 64 CR 90 CRN 90
10
20
30
40
50 60
80 100 Q [m/h]
Q [US GPM]
High-pressure range
Product data
Custom-built pumps
Type keys
CR(E), CRI(E), CRN(E)
Example Type range: CR, CRI, CRN Pump with integrated frequency control Flow rate [m3/h] All impellers with reduced diameter (applies only to CR, CRI, CRN 1s) Number of impellers Number of reduced diameter impellers (CR(E), CRN(E) 32, 45, 64, 90) Code for pump version Code for pipe connection Code for materials Code for rubber parts Code for shaft seal CR E 32 (s) -4 -2 -A -G -G -E -HQQE
Codes
Example Pump version A B E F H HS I J K M N P R SF T U Basic version 1) Oversize motor Certificate/approval CR pump for high temperatures (air-cooled top assembly) Horizontal version High-pressure pump with high speed MLE motor Different pressure rating Pump with different max speed Pump with low NPSH Magnetic drive Fitted with sensor Undersize motor Horizontal version with bearing bracket High pressure pump Over size motor (two flange sizes bigger) A -G -G -E -H QQ E
Example A -G -G Materials A Basic version D Carbon-graphite filled PTFE (bearings) G Wetted parts AISI 316 All parts stainless steel, wetted GI parts AISI 316 I Wetted parts AISI 304 All parts stainless steel, wetted II parts AISI 304 K Bronze (bearings) S SiC bearings + PTFE neck rings X Special version Code for rubber parts E EPDM F FXM K FFKM V FKM Shaft seal A O-ring seal with fixed driver B Rubber bellows seal E Cartridge seal with O-ring H Balanced cartridge seal with O-ring K Metal bellows cartridge seal O Double seal, back-to-back P Double seal, tandem X Special version B Carbon, synthetic resin-impregnated H Cemented tungsten carbide, embedded (hybrid) Q Silicon carbide U Cemented tungsten carbide X Other ceramics E EPDM F FXM K FFKM V FKM
1)
-E
-H QQ
In August 2003 the NEMA version pump code was discontinued for all material numbers created by Grundfos manufacturing companies in North America. The NEMA version pump code will still remain in effect for existing material numbers. NEMA version pumps built in North America after this change will have either an A or U as the pump version code depending on the date the material number was created.
NEMA version 1) X Special version Pipe connection A Oval flange B NPT thread CA FlexiClamp (CRI(E), CRN(E) 1, 3, 5, 10, 15, 20) CX Triclamp (CRI(E), CRN(E) 1, 3, 5, 10, 15, 20) F DIN flange G ANSI flange J JIS flange N Changed diameter of ports P PJE coupling X Special version
Product data
Custom-built pumps
H [m]
60 50
Number of stages First figure indicates number of stages, second figure indicates number of reduced-diameter impellers.
H [ft]
220 200 180 160 140 120
-2 -2-1
H [ft]
CR 32 CRN 32
2-pole, 60 Hz
40 30 20 10
100 80 60 40 20
The power curves indicate pump input power per stage. Chart shows curve for pump with full-diameter impeller (1/1) and reduced-diameter impeller (2/3).
P2 [kW]
2 1 0
P2 [hp]
4 3 2 1 0 0
80 60 40 20 0
The eff. curve shows pump efficiency. The efficiency of pumps with reduced-diameter impellers is approx. 2% lower than the eff. curve shown in the chart.
H [m]
8 4 0
NPSH [ft]
30 20 10 0 0 20 40 60 80 100 120 140 160
NPSHR
Q [US GPM]
Curve conditions
The guidelines below apply to the curves shown in this data booklet. 1. The motors used for the measurements are the same as the motors used in the standard range. 2. Performance may vary based on motor selection. 3. Measurements have been made with airless water at a temperature of 68F. 4. The curves apply to a kinematic viscosity of = 1 mm2/s (1 cSt). 5. Due to the risk of overheating, the pumps should not be used at a flow below the minimum flow rate.
The curve below shows the minimum flow rate as a percentage of the nominal flow rate in relation to the liquid temperature. The dotted curve represents a pump fitted with an aircooled top.
Qmin [%]
30 20 10 0 104 320 180 356 40 140 60 176 80 212 248 120 284 140 160
TM02 7538 3703
t [F]
Motors
Custom-built pumps
General information
The Grundfos standard range of motors covers a wide variety of application demands. For special applications or operating conditions, Grundfos offers custom-built motors, such as:
Variant Description
If technically possible, Grundfos can fit the pump with a motor of a brand other than the standard. This will normally increase the time of delivery. Alternatively, the pump can be supplied without a motor (motor thrust rating must be checked). Where possible, the terminal box can be placed on either side of the pump. For operation in hazardous atmospheres. As standard, Grundfos can supply: ODP: open drip-proof; TEFC: total-enclosed fan-cooled On request, we can supply: Chemical processing/mill and chem duty Washdown duty (Up through 10 hp only) Other
Anti-condensation heating (space heaters) Integrated variable speed drive Special supply voltage Motor insulation class Efficiency class Oversized motor Tropicalized windings Wye/Delta starting Test sheets
Built-in heating unit, especially for humid environments. All heating units are supplied with 1 x 115V, 60Hz. All Grundfos CR pumps 10 hp and below are available as standard with an integrated variable speed drive (type MLE) motor. Motors suitable for other voltages are available upon request. Upgrade from Class F to Class H. EPAct/NRCmotor efficiency according to EPAct/NRC standards Premium efficiency
Ambient temperatures above 104 F or installation at altitudes of more than 3,300 feet above sea level may require the use of an oversized motor (i.e. derating). Motors recommended for operating in areas with high humidity. Motor wired for Wye/Delta starting (6 leads). Grundfos laboratory is authorized to issue test sheets for motors; for instance, for insurance companies.
Motors
Custom-built pumps
Efficiency class
Grundfos offers motors with Energy Efficient EPAct/NRC class and Premium Efficiency class. When Premium Efficiency motors are ordered, the Baldor Super-E motor is supplied which in most cases exceeds the NEMA Premium Efficiency standards.
Pump range
Energy Efficient and Premium Efficiency motors are available for all Grundfos CR pumps.
CR 1 CR 3 CR 5 CR 10 CR 15 CR 20 CR 32 CR 45 CR 64 CR 90
NEMA TEFC Motor Efficiency Standards & Baldor TEFC Super-E Efficiency
100 95
Efficiency (%)
90 85 80 75 70 1 1,5 2 3 5 7,5 10
HP
TEFC EPAct/NRC TEFC Premium Eff. TEFC Super-E
15
20
25
30 40 50 60
Notes: 1. The term High Efficiency is commonly used but is not recognized in the NEMA standards (MG 1-1198, Part 12). 2. Some standard CR pump motors already meet the EPAct/NRC requirement. See the CR, CRI, CRN Product Guide.
NEMA TEFC Baldor Super-E Motor Efficiency Efficiency Standards &
Custom-built pumps
Outlet 1/2"
Reference applications
Pharmaceutical industry (production of dextran) Negative pressure deaeration systems (vacuum) Industries handling potentially hardening oil products Caustic soda (sodium hydroxide - NaOH)
Inlet 1/2"
TM02 7386 3403 TM01 6204 1699
Pump range
The tandem type of seal is available for the following Grundfos pumps:
Pump CR 1s type CR CRI CRN CR 1 CR 3 CR 5 CR 10 CR 15 CR 20 CR 32 CR 45 CR 64 CR 90 Outlet 3/8" Inlet 3/8"
Technical description
This type of double seal consists of two shaft seals mounted in a tandem arrangement in a separate seal chamber. Only Grundfos cartridge shaft seals can be used. If the primary seal is leaking, the pumped liquid will be flushed away by the flushing liquid. The flushing liquid pressure must always be lower than the pumped liquid pressure.
Dimensions
Pump type CR, CRI, CRN 1s, 1, 3 and 5 CR, CRI, CRN 10, 15 and 20 CR, CRN 32, 45, 64 and 90 Additional height of seal chamber * [in] 4 1/4 3 1/2 0
Outlet 1/2"
Reference numbers
Pump type CR, CRI, CRN 1s, 1, 3 and 5 CR, CRI, CRN 10, 15 and 20 CR, CRN 32, 45, 64 and 90
TM02 2139 3701
Reference number 98 97 08 98 94 70 98 98 05
Inlet 1/2"
Custom-built pumps
Sectional drawings
CR, CRI, CRN 1s, 1, 3 and 5
Shaft seal
Shaft seal
TM02 1691 1801
Reference applications
Paint industry Distilling plants Petrochemical industry.
Pump range
The back-to-back type of seal is available for the following Grundfos pumps:
Pump CR 1s CR 1 CR 3 CR 5 CR 10 CR 15 CR 20 CR 32 CR 45 CR 64 CR 90 type CR CRI CRN
Shaft seal
Technical description
The back-to-back double seal consists of two shaft seals mounted in a back-to-back arrangement in a separate seal chamber. The pressure in the seal chamber must be higher than the pump pressure. The pressure in the seal chamber can be generated by a pressure intensifier when the operating pressure is above 232 psi (see page 12) a separate pump, e.g. a dosing pump, when the operating pressure is less or equal to 232 psi (see page 12) or an existing, separate pressure source. Many applications incorporate pressurized systems. The back-to-back double seal arrangement with pressurized seal chamber prevents the pumped liquid from leaking through the shaft seal to the environment.
Shaft seal
TM02 7385 3403
Reference numbers
Pump type CR, CRI, CRN, 1s, 1, 3 and 5 CR, CRI, CRN, 10, 15 and 20 CR 32, 45, 64 and 90 CRN 32, 45, 64 and 90 Reference number 98 97 09 98 94 71 98 98 10 98 97 87
10
Custom-built pumps
Pressure intensifier
Double seal
TM01 4455 0399 tm01 9099 1701
Barrier fluid
Dimensions
Note: One dosing pump installation can supply several pumps fitted with back-to-back double seal.
Connections are all ". Note: Connecting pipes/hoses are not included.
Dimensions
Pump type CR, CRI, CRN 1s, 1, 3, 5 CR, CRI, CRN, 10, 15 and 20 CR, CRN 32 CR, CRN 45 CR, CRN 64
a c b
Additional height of seal chamber * [in] 4 1/4 3 1/2 8 1/4 9 1/2 6 1/2 7 1/4
CR, CRN 90
TM01 4459 0399
Reference numbers
Reference number Dosing pump, max. 232 psi 98 98 09
Pump type CR, CRI, CRN 1s, 1, 3 and 5 CR, CRI, CRN, 10, 15 and 20 CR, CRN 32 CR, CRN 45 CR, CRN 64 CR, CRN 90
Reference numbers
Material Pressure intensifier (not available for CRT) AISI 316, FKM AISI 316, EPDM Reference number 98 98 92 98 98 91
11
Custom-built pumps
Temperatures above 248F normally result in a substantial reduction of seal life due to poor lubrication of the seal faces. As the temperature in the seal chamber does not exceed 248F during operation, a standard Grundfos shaft seal can be used. The Grundfos air-cooled top does not require any external cooling. An automatic air vent is required to vent the pump seal chamber.
General information
The unique Grundfos air-cooled top shaft seal solution is recommended for applications involving high temperatures from 248F to 356F. The Cool-Top pumps are equipped with FXM rubber parts.
GR5228
Dimensions
Pump type CRI, CRN 1s, 1, 3 and 5 CRI, CRN 10, 15 and 20 CR, CRN 32 CR, CRN 45 CR, CRN 64 CR, CRN 90 Additional pump height * [in] 4 1/4 3 1/2 8 1/4 9 1/2 6 1/2 7 1/4
Reference applications
Boiler feeding Temperature control, e.g. in molding processes Circulation of transmission oils.
Pump range
The Cool-Top is available for the following Grundfos pumps:
248-356F
Pump CR 1s CR 1 CR 3 CR 5 CR 10 CR 15 CR 20 CR 32 CR 45 CR 64 CR 90 type CR CRI CRN
Technical description
The air-cooled top separates the seal chamber from the pump by an air-cooled chamber, generating an insulating effect similar to that of a thermos. Via the narrow passage between the pump and the aircooled top, a small quantity of the pumped liquid recirculates by natural circulation.
12
Custom-built pumps
Sectional drawings
CRI, CRN 1s, 1, 3 and 5 CRI, CRN 10, 15 and 20
Liquid
Shaft seal
Liquid
Air chamber
Pipe Bushing
13
Shaft seals
Custom-built pumps
Shaft seals
General information
Liquids or applications exceeding the range of normal operating conditions require special-purpose shaft seal solutions. To ensure reliability and avoid untimely breakdowns, the following conditions must be considered: temperature, pressure, pumped liquid. In order to meet any specific requirements, Grundfos offers the following variants: 1. Shaft seals with FFKM or FXM O-ring material 2. Hybrid shaft seals
Pump range
Shaft seals with FFKM or FXM O-ring are available for the following Grundfos pumps:
Pump CR 1s CR 1 CR 3 CR 5 CR 10 CR 15 CR 20 CR 32 CR 45 CR 64 CR 90 type FFKM FXM
Technical description
Max. temperature [F] 248 194 527 527
The FFKM and FXM O-rings replace the standard shaft seal O-rings.
Dimensions
Dimensions are identical to those of the standard shaft seal.