Catalog Fukui SL Series
Catalog Fukui SL Series
Catalog Fukui SL Series
Fukui Seisakusho Co., Ltd. has been developing and supplying high-end technology on
safety relief valve as manufacturer specializing in safety valve, under our philosophy of
“continually pushing back the frontier of safety valves and making them our life work”
since 1936year when founded.
We have successfully developed all kinds of safety valves intended for power boiler
services up to super-critical pressure.
It is Fukui Seisakusho Co., Ltd. that is your best partner capable of supplying high
quality, efficient performance and good after-sales service in the power boiler field.
Boiler
Turbine
Feed
Style
Division RECL RECL-E RVK &
SL & SJ PCV RPE REC-STM LT3000
-STM -PE RHK
~ 1.96~
Pressure range ~34.8MPa ~30.0MPa ~25.0MPa ~10.0MPa ~41.4MPa ~2.1MPa
21.0MPa 5.88kPa
Saturation Saturation
Temperature range ~621℃ ~621℃ ~350℃ temperature ~374℃ ~538℃
temperature
Effective area range 78.5~ 1294.2~ 651.1~ 38.5~ 17592~
88.2~18867
(mm2) 18385.4 1885.1 25434.0 70.9 241776
ASME Stamp V & UV V V UV UV UV ――― ―――
Drum ○ ――― ――― ――― ――― ――― ――― ―――
Superheater ○ ○ ――― ――― ――― ――― ――― ―――
✯ RPE Series
RPE Series have been developed with ASME Section I Certified Capacity to serve Economizer application
for both steam and water.
✯ PCV Series
The power actuated pressure relieving
valve, PCV series is characterized by
activating the valve through the power of
air(0.5MPa~0.7MPa) or electromagnet.
PCV-AR is composed of Main Valve, Pilot
Valve, Air-cylinder Assembly and
Controller.
In comparison with conventional spring
loaded safety valve, ① perfect seat
tightness is maintained till the line pressure reaches the setting point. ② accurate and reliable
setting point can be done through pressure sensor. ③ accurate blow-down(3% of blow-down)
can be secured, which contributes to effective boiler operation and saving of cost.
REC-STM Series
✯ REC-STM & RECL-STM Series
REC series meets client’s request for low-priced and high performed product, which contradicts to each
other.
Its performance is certified through getting approved by ASME Boiler and Pressure Vessel Code Section
Ⅷ and this model can be used for all kinds of fluids, such as Air, Steam, various kinds of Gas or Vapor
and Liquid.
✯ RECL-E-PE Series
RECL-E-PE series has been developed for the service of liquid with high temperature and high pressure
on heat exchanger of water.
Its construction and material is designed to resist the severe environment with high temperature and
high pressure.
This model is characterized by most suitable trim construction to realize smooth function for liquid
service, by forging body to absorb excessive reaction force of pipe and by adoption of hard surface
treatment on internal sliding parts to resist continual popping.
LT3000 Series
LT3000 series is a relief valve with compact body and high performance that can be applicable to various
kinds of fluids (Air, Gas, Vapor and Liquid) and broad range of pressure from low pressure up to high
pressure.
Its construction is high quality oriented unlike small-sized valve as characterized by application of metal to
metal seat, adjustment of blow-down pressure.
Also, the applicable connections covers all kinds of connections, such as Thread(Rc, NPT), Flange(ASME,
JIS) and welding.
■ Safety precautions
The following categories are used to explain the extent of danger damage that is anticipated if cautionary information is ignored products
are incorrectly used.
Indicates an imminently hazardous situation which, if not avoided, will result in death or serious injury.
Indicates a potentially hazardous situation which, if not avoided, could result in death or serious injury.
Indicates a potentially hazardous situation which, if not avoided, may result in minor or moderate injury.
Avoid using parts such as the lever or cap to suspend a valve because this could affect valve performance.
We recommend winding a wire or nylon sling around the valve outlet neck and the bonnet or yoke.
Do not let valves tip over.
Many safety valves have curved shapes and are therefore highly unstable. Do not try to stack them in storage because they could tip and be
damaged.
Store safety valves indoors.
Safety valves should be kept indoors when in storage before mounting. If indoor storage is impossible, shroud completely with a waterproof tarp or
other covering to prevent exposure to the elements.
Mount the safety valve directly on the mounting connection in an upright position.
Mount the valve in an upright position on the boiler or the mounting connection. Mounting an incline could cause poor tightness and unstable
operation. The permissible deviation from the vertical is within ±1°.
Use care in tightening the flange bolts.
When mounting a safety valve, first remove the inlet and outlet protective covers and make sure there is no foreign matter. When mounting a flanged
valve, be sure that the flange gasket dose not protrude, and tighten the flange bolts alternately to ensure they are all tightened equally.
Improper bolt tightening could cause steam leaks and pose the danger of burns by leaked steam.
Installing Steam Safety Valves Mounting
The safety valve inlet connection must be at least as large as the valve inlet diameter.
The inside of the safety valve’s mounting connection should save rounded corners and its inside diameter should be at least the same as the valve’s
Precautions to Be Observed When
nominal to ensure the smooth flow of steam from the boiler to the valve. We recommend that the R dimension of the inlet pipe’s inside diameter
corner is at least one‐fourth the inside diameter.
Pressure loss at the safety valve inlet should be under 2%.
See that the pressure loss from the connection to the valve is under 2% of the valve’s set pressure. A large pressure loss presents the danger of
chattering when the valve operates.
When a valve is installed on an elbow, provide for a generous radius as well as appropriate supports for curved attachments.
Mount safety valves a sufficient distance away from joints and other valves.
When installing a safety valve on a pipe line, make sure it is sufficiently distant from joints or other valves that disrupt the fluid flow. A safety valve
must be at least the approximate distance of 10 X D (where D is pipe diameter) from these other fixtures, both upstream and downstream. Do not
install a branch‐pipe in a position that is symmetrically opposite the safety valve. When installing two or more safety valves on the same header or
line, be careful of the distance between valves. A malfunction could result from unevenness in the pressure distribution if all safety valves actuate at
same time.
Be careful of safety valve blowoff recoil.
A exhaust pipe’s diameter must be at least as large as the safety valve’s outlet diameter, and the distance from the valve axis to the center of the
exhaust pipe must be less than four time the outlet diameter. The pipe must be as short as possible and lead outdoors without bends; its structure
must be as simple and sound as possible. Back pressure arising in the exhaust pipe when the valve operates must not exceed 10% of the set
pressure because it could cause unstable operation. Adopt piping arrangements that will not allow excessive impacts on the safety valve from
thermal expansion of the boiler, other equipment and the exhaust pipe, or other causes. If you attach a drain pipe to the exhaust pipe, make sure the
end is open.
Do not restrict safety valve actuation with drain pipe.
Be sure to provide a safety valve with a drain pipe to drain away rainwater, and the condensed water that forms during a safety valve blowoff. Take
care to provide a drain pipe that is independent of other piping, and does not restrict the valve. Leave the lower end open; do not attach a cock or
valve.
Be careful of test pressure when performing hydrostatic pressure tests.
When pressure testing a safety valve, carefully watch the test pressure and be sure never to exceed it. Some valves have a water pressure plug un
the nozzle seat for pressure testing. Be sure to remove the plug after testing but before starting operation. See the manual for details.
Use a safety valve’s lever only when necessary.
Do not touch or lift a safety valve’s lever except when there is a need to use it. Unnecessary use could cause improper functioning.
Operation and Use
1. SJ / SL / PCV Series
Technology That Gives Tangible Form to Reliability ··························································· 2
Code System ············································································································ 4
Tables for Calculating the Discharge Capacity and Area of safety Valve ································· 5
SJ / SL100~300 ······································································································· 6
SJ / SL400~600-M/M2 ····························································································12
SL700~900-H1········································································································18
SL700~800-H2········································································································22
SL1000-H1 ··············································································································26
RPE ·······················································································································30
PCV ·······················································································································32
2. REC-STM / RECL-STM Series
Code System ···········································································································38
REC-STM & RECL-STM ····························································································40
RECL-E-PE ·············································································································45
3. LT3000 Series
Code System ···········································································································46
LT3000 ···················································································································47
4. RVK & RHK Series
Code System ···········································································································48
RVK & RHK ·············································································································49
5. Another Products ······································································································51
6. Precautions to Be Observed When Installing Steam Safety Valves ······································52
Note … Material and specifications in this catalog are subject to change.
-1-
Mechanisms That Enhance Product Reliability
Safety valves must protect pressure equipment from the danger of explosion in an emergency by quickly releasing
excess pressure under severe conditions of use. At the same time, under normal operating conditions they need to
be completely sealed to allow no fluid leaks from pressure equipment.
Safety valves are expected to provide both of these conflicting functions, and yet they must perform both these
difficult tasks by using only the power of the springs built into them.
To accomplish these tasks, Fukui uses disc structures called “feather disc” and “thermo lip disc”, which involve
precision engineering the edge of each nozzle seat into the form of a lip to give it flexibility and endow it with the
exact operating characteristics and sealing by taking advantage of fluid temperature and pressure.
Springs, spindles, and other parts likewise benefit from FUKUI technologies developed through long years of
experience to yield products you can depend on.
■Yoke
SL/SJ 100~600 series safety valves have a yoke. Putting the
spring inside the yoke structure provides for efficient air cooling
and keeps the spring from being affected by steam when the
valve actuates.
■Spring
These valves use cylindrical coil springs with highly accurate
dimensions and corrected load eccentricity that maintain
constant flexibility indexes without regard to pressure.
The springs are made of alloy steel having excellent properties
including fatigue resistance, workability, and hardenability.
■Nozzle Seat
The structure of each safety valve’s nozzle seat is such that an
integrated full nozzle screws into the valve body and the bottom is
seal-welded to keep it in place.
Nozzle seats are made of forged carbon steel low-alloy forged
steel, and the edge seat, which is the surface of contact with the
disc, is given a surface hardening treatment with stellite facing.
-2-
Mechanisms That Enhance Product Reliability
In addition to blowoff characteristics and leak prevention, safety valves need mechanisms that provide good
reliability.
A good example is the back pressure adjustment mechanism of our safety valves.
In addition to clear‐popping and valve lifting force adjustment mechanisms, our valves have a unique back
pressure adjustment mechanism adjustment mechanism allowing them control blowdown.
This is the “yoke side needle” mechanism, which features coil spring protection and easy post‐installation
adjustment. We have also brought into practical application a “cooling center throttle” mechanism that automatically
opens and closes the throttle in response to disc actuation.
■Spindle
The tip of the spindle must vertically transmit spring thrust
ranging between several hundred and several tons accurately to
the disc center.
For this reason the spindle must have the load‐bearing capacity
and resistance to wear withstand spring thrust .Fukui structures
the disc back, which receives spindle thrust, and the spindle tip
into perfectly matching spherical surface, which not only
ensures that spindle thrust is centered, but also unerringly
transits the load thanks to the suitable contact area.
Spindles use 13 chrome stainless steel, while for
high-temperature, high-pressure specifications we use special
■Valve Body
The valve body is a sturdy spherical structure, which lowers its
susceptibility to distortion blowoff steam counteraction, the
vibration of inlet and discharge pipes, and other causes.
This spherical shape also eliminates wasteful dead spaces from
inside the valve casing and creates a uniform internal pressure
distribution, thereby providing for a smooth flow toward the valve
outlet.
■Discs
Discs come in two types called the “feather lip disc” and “thermo
lip disc”, in which the contact surface with the nozzle seat has a
lip face.
Disc type is chosen on the basis of temperature and pressure.
The principle involves shaping the disc seat into a lip, so that
until a safety valve blowoff, internal pressure deforms the lip
edge. When disc seat pressure decreases because of a
pressure rise, the raised part of the lip decreases contact area of
the disc and nozzle seat. As a result, a tight seal is maintained
by keeping seat surface pressure high.
The thermo lip disc has built‐up structure that is a combination
of a disc center and disc ring, which further enhances the
feather lip’s function. It is used in higher‐pressure applications.
HOLDER A characteristic of this type is that the lip is protected from
deformation caused by the shock arising when safety valves
DISC COLLAR
closes. This is a accomplished by providing the surface
contacting the lip back of the disc center, with hard facing to
DISC CENTER
prevent lip deformation. This makes the disc more durable
DISC RING because even in high‐temperature, high‐pressure ranges, the
feather lips excellent sealing function is unimpaired.
DISC Additionally, flexibility is provided by a gap between the disc and
holder that disc will be unaffected even if the spindle should tilt
Feather disc Thermo lip disc out of line due to piping counteraction or other external force.
-3-
SJ / SL / PCV Series Code S ystem
Cap code
Version code
Body material code
Special connection code
Inlet connection code
Temperature classification code
Pressure class code
Series code
#
-3 30K 300 30K
ASME , JPI
Symbol
JIS B8210
JIS B2220
-5 900# 63K
ASME
class
-6 - 1500# -
-7 - 2500# -
SJ - ◎ ◎ ○ ◎ ◎ No number is shown when nominal pressure for the inlet
connection is the same as pressure class code.
SL ◎ ◎ - ◎ ○ ◎
Body Material
PCV ◎ ◎ - - - ◎ material
JIS notation ASTM notation
RPE ◎ - - ◎ - - code
Non code SCPH2 A216-WCB
-C2 SCPH21 A217-WC6
Inlet connection code
Number -C3 SCPH32 A217-WC9
JIS B8210 ASME , JPI JIS B2220 -C4 SCPH61 A217-C5
1 10K 150# 10K -CA SCPH91 A217-C12A
2 20K 300# 20K
#
3 30K 300 30K Version *2Seat
# Pressure class code
4 40K 600 40K code tightness
5 900 #
63K Non code
SL100~300 90%
6 - 1500# - -H2
7 - 2500# - -M SL400~500
#
94%
8 - 2500 - -M2 SL400~600
9 - 3000# *1 - -H1 SL700~1000 95%
10 - 4500 * # 1
- -H2 SL700~800 93%
*1. Welded type only -AR PCV100~1000 Air drive 100%
-ER PCV100~900 Sorenoid drive 100%
Inlet connection Inlet connection
code standard Non code RPE300~700 Main Valve 96%
1 ASME *2. set pressure×( )%
-4-
Tables for Calculating the Discharge Capacity and Area of Safety Valve
Applicable law,
regulation code, Formula Nomenclature
or standard
W 5.25 A P1 K1 ・Ksh
A = Nozzle throat area mm2
ASME Sec. Ⅰ
(POWER BOILER) 10.3 < PG ≦ 22.1 MPa G
P = Relieving pressure MPa G
27.6 P 1000 1.03p or designated value
W 5.25 A P1 K1・Ksh・
33.2P 1061
p = Set pressure MPa G
Pg ≦ 10.3 MPa G
P2 K d K b K c K N K sh A
W P2 = Pg + 0.1013 MPa A
0.1904
API RP520
K1 = Coefficient of discharge 0.878
10.339 < P2 ≦ 22.057 MPa A
These above Nomenclature differ somewhat from those established by laws and or standards.
-5-
SJ and SL1( )( )~3( )( ) Series Parts Names
Cap
Step Ring
Adjust Spindle
Needle
Body
SJ100~300 (unit:mm2)
Orifice Letter F2 G2 H2 J2 L1 M N3 P2 Q2 Q3 R T
Throat area 283.5 452.4 706.8 1134.1 1885.7 2533.9 3739.3 4560.4 6082.1 7208.1 10386.9 18385.4
SL100~300 (unit:mm2)
Orifice Letter D E F G H J K L M N P Q R RR T
Throat area 78.5 138.9 216.4 353.0 555.7 907.9 1294.6 2010.9 2533.9 3058.1 4500.7 7791.3 11272.0 12687.6 18385.4
-6-
S J and SL1( ) ( )~3( ) ( ) Series Parts Materials
Holder SUS420J2
SCPH2 or
Yoke SCPH21 or SA217M-WC6
Yoke SA216M-WCB
Cap FCMB310
Pin SUS304
-7-
SJ1( )9~3( )9 Series Application Range and Dimensions
(Unit:mm)
Pressure and Thickness of
Dismantling Approx.
Connection Temperature Limits Inlet Dia. Throat area Outlet Center to Face Height Flange
Style Size Height Weight
MPaG mm2 Dia. Inlet Outlet
Inlet Outlet 400℃ 450℃ B H’ L H HA T T1 kg
25×F2×40 25 283.5 40 120 110 400 540 40 16 17
32×G2×50 32 452.4 50 125 120 435 610 44 16 23
JIS B 8210 (1994) 10K RF
3.23 3.23
80×M×125 80 2533.9 125 200 180 840 1195 54 20 100
90×N3×150 90 3739.3 150 210 200 865 1220 56 22 112
100×P2×150 100 4560.4 150 210 220 985 1435 58 22 167
125×Q2×200 115 6082.1 200 222 220 1120 1635 62 22 240
125×Q3×200 125 7208.1 200 240 250 1160 1685 62 22 265
150×R×250 2.15 2.15 150 10386.9 250 262 260 1190 1705 68 24 310
-8-
SL1( ) 1~3( )1 Series Application Range and Dimensions
(Unit:mm)
Pressure and Temperature Thickness of
Dismantling Approx.
Connection Limits Inlet Dia. Throat area Outlet Center to Face Height Flange
Style Size Height Weight
MPaG mm2 Dia. Inlet Outlet
Inlet Outlet 230℃ 400℃ 510℃ B H’ L H HA T T1 kg
3/4×D×1 20 78.5 25 92 96 345 470 30 14.5 11
1×D×2 25 78.5 50 105 114 360 485 32 16 13
1×E×2 25 138.9 50 105 114 360 485 32 16 13
1-1/2×F×2 40 216.4 50 124 121 380 505 39 16 16
1-1/2×G×2-1/2 40 353.0 65 124 121 410 550 39 18 19
ASME 150Lb RF
ASME 150Lb RF
0.65
3×K×4 80 1294.6 100 156 162 620 860 47 24 51
3×L×4 80 2010.9 100 156 165 680 965 47 24 59
4×M×6 100 2533.9 150 178 184 700 990 50 26 71
4×N×6 100 3058.1 150 197 210 790 1140 50 26 90
4×P×6 100 4500.7 150 181 229 875 1230 50 26 110
6×Q×8 1.12 1.12 150 7791.3 200 240 241 1050 1500 44 29 200
6×R×8 0.68 0.68 150 11272.0 200 240 241 1155 1675 44 29 260
8×T×10 0.44 0.44 0.44 200 18385.4 250 276 279 1380 2055 48 31 400
3/4×D×1 20 78.5 25 92 96 345 470 30 14.5 11
1×D×2 25 78.5 50 105 114 360 485 32 16 13
1×E×2 25 138.9 50 105 114 360 485 32 16 13
1-1/2×F×2 40 216.4 50 124 121 380 505 39 16 16
1-1/2×G×2-1/2 40 353.0 65 124 121 410 550 39 18 20
ASME 300Lb RF
ASME 150Lb RF
ASME 150Lb RF
-9-
S L1 ( )4~3( )4 Series Application Range and Dimensions
(Unit:mm)
Pressure and Thickness of
Inlet Dismantling Approx.
Connection temperature Throat area Outlet Center to Face Height Flange
Style Size Dia. Height Weight
Limits MPaG mm2 Dia. Inlet Outlet
Inlet Outlet 220℃ 300℃ B H’ L H HA T T1 kg
20×D×25 20 78.5 25 92 96 345 470 30 14 11
25×D×50 25 78.5 50 105 114 360 485 32 16 13
25×E×50 1.18 25 138.9 50 105 114 360 485 32 16 13
40×F×50 0.98 40 216.4 50 124 121 380 505 39 16 16
40×G×65 40 353.0 65 124 121 410 550 39 18 19
40×H×80 40 555.7 80 130 124 440 610 39 20 23
JIS 10K RF
JIS 10K RF
1.13
50×J×80 50 907.9 80 137 124 515 720 41 20 30
SL104
JIS 10K RF
-10-
SL1( )4~3( )4 Series Application Range and Dimensions
(Unit::mm)
Pressure and Temperature Thickness of
Inlet Dismantling Approx.
Connection Limits Throat area Outlet Center to Face Height Flange
Style Size Dia. Height Weight
MPaG mm2 Dia. Inlet Outlet
Inlet Outlet 300℃ 400℃ 490℃ B H’ L H HA T T1 kg
25×D×50 25 78.5 50 105 114 360 485 32 16 14
25×E×50 25 138.9 50 105 114 360 485 32 16 14
3.72
40×F×50 40 216.4 50 124 152 380 505 40 16 19
2.94 2.84
40×G×65 40 353.0 65 124 152 420 590 40 18 22
50×H×80 50 555.7 80 130 124 500 705 41 20 31
3.53
65×J×100 65 907.9 100 137 143 595 835 44 24 46
JIS 30K RF
JIS 10K RF
-11-
S J/SL4( )( )~6( ) ( )-M/M2 Series Parts Names
Cap
Fork Lever
Adj. Screw
Lock Nut
Adjusting
Screw
Thrust Ball Bearing
Upper Spring Washer
Yoke
Spring
Easing Lever
Spindle
Stud Bolt&Nut
Lower Spring Washer
Step Ring
Stud Bolt & Nut
Spindle Guide
Cooling
Lift Stopper
Guide
Pin
Disc Collar
Holder
Upper Ring
Upper Lock Bolt
Disc
Lower Ring
Lower Lock Bolt
Nozzle
Body
SJ400
SL400~500 SL600(K~R)
SL600(F1~J)
SJ400 (Unit:mm2)
Orifice Letter 19 24 30 38 49 56 65 73 82 88 105
Throat area 283.5 452.4 706.8 1134.1 1885.7 2463.0 3318.3 4185.3 5281.0 6082.1 8659.0
SL400~700 (Unit:mm2)
Orifice Letter F1 G1 H J K K2 L M M2 N2 P Q0 Q1 Q R RR T
Throat area 216.4 353.0 555.7 907.9 1294.6 1727.6 2010.9 2533.9 2587.7 3421.2 4500.7 5462.9 6418.4 7791.3 11272.0 12687.6 18337.3
-12-
S J/SL4( ) ( )~6( ) ( )-M/M2 Series Parts Materials
-13-
S J4 ( )( )-M/M2 Series Application Range and Dimensions
(Unit:mm)
Pressure and Thickness of
Inlet Dismantling Approx.
Connection Temperature Limits Throat area Outlet Center to Face Height Flange
Style Size Dia. Height Weight
MPaG mm2 Dia. Inlet Outlet
Inlet Outlet 400℃ 510℃ B H’ L H HA T T1 kg
25×19×50 25 283.5 50 110 125 475 715 30 16 45
32×24×65 32 452.4 65 130 140 500 750 34 18 60
JIS B 8210 (1994) 40K RF
80×56×150 4.51 3.53 80 2463.0 150 215 220 935 1435 53 26 185
90×65×150 90 3318.3 150 230 240 1020 1580 60 26 270
100×73×200 100 4185.3 200 260 265 1220 1870 60 29 450
125×82×200 115 5281.0 200 260 265 1240 1880 60 29 550
125×88×200 125 6082.1 200 270 280 1340 2020 60 29 600
150×105×250 150 8659.0 250 330 320 1535 2315 69 31 650
65×49×150 65 100 112 1885.7 150 250 200 880 1300 26 135
Welded
SJ403
80×56×150 4.51 80 116 124 2463.0 150 260 220 980 1480 26 170
90×65×150 90 128 138 3318.3 150 265 240 1055 1615 26 250
100×73×200 100 140 150 4185.3 200 310 265 1270 1920 29 400
125×82×200 115 156 166 5281.0 200 330 265 1310 1950 29 500
125×88×200 125 168 178 6082.1 200 340 280 1410 2090 29 550
150×105×250 150 195 205 8659.0 250 400 320 1605 2385 31 600
-14-
S L4 ( ) ( )-M/M2 Series Application Range and Dimensions
(Unit:mm)
Thickness of Approx
Pressure and Temperature Limits Throat Dismantlin
Connection Inlet Dia. Outlet Center to Face Height Flange .
Style Size MPaG area g Height
Dia. Inlet Outlet Weight
mm2
inlet Outlet 400℃ 510℃ 571℃ 621℃ B H’ L H HA T T1 kg
2×F1×3 40 216.4 80 140 150 590 890 38 19.1 90
2×G1×3 40 353.0 80 140 150 590 890 38 19.1 90
2×H×3 40 555.7 80 140 150 590 890 38 19.1 90
2-1/2×J×4 50 907.9 100 155 180 700 1085 40 24 120
2-1/2×K×6 65 1294.6 150 185 190 745 1135 43 26 135
3×K2×6 65 1727.6 150 185 200 815 1240 43 26 150
5.5
3×L×6 80 2010.9 150 185 200 815 1240 43 26 150
ASME 600Lb RF
ASME 150Lb RF
4.4
4×N2×6 2.2 1.34 100 3421.2 150 230 240 1020 1580 60 26 265
6×P×6 100 4500.7 150 260 265 1220 1870 60 26 360
6×P×8 100 4500.7 200 260 265 1220 1870 60 29 450
6×Q0×8 150 5462.9 200 260 265 1240 1880 60 29 550
6×Q1×8 150 6418.4 200 270 280 1340 2020 60 29 580
6×Q×8 150 7791.3 200 280 290 1370 2070 60 29 600
4.8
6×Q×10 150 7791.3 250 280 290 1370 2070 60 31 650
8×R×10 150 11272.0 250 330 320 1535 2315 69 31 850
8×RR×10 150 12687.6 250 330 320 1535 2315 69 31 850
8×T×12 3.4 3.4 200 18337.3 300 350 350 1670 2500 68 32 1000
3×M×6 76 111 116 130 130 2533.9 150 260 220 980 1480 26 175
3×M2×6 76 111 116 130 130 2587.7 150 260 220 980 1480 26 175
Welded
SL403
4×N2×6 102 140 140 149 149 3421.2 150 265 240 1055 1615 26 250
4×P×6 102 146 146 160 160 4500.7 150 310 265 1270 1920 26 400
4×P×8 102 146 146 160 160 4500.7 200 310 265 1270 1920 29 400
6×Q0×8 152 203 203 210 210 5462.9 200 330 265 1310 1950 29 500
6×Q1×8 152 203 203 210 210 6418.4 200 340 280 1410 2090 29 530
6×Q×8 152 203 203 210 210 7791.3 200 360 290 1450 2150 29 550
4.8
6×Q×10 152 203 203 210 210 7791.3 250 360 290 1450 2150 31 600
6×R×10 152 210 210 232 232 11272.0 250 400 320 1605 2385 31 800
6×RR×10 152 210 210 232 232 12687.6 250 400 320 1605 2385 31 800
8×T×12 3.4 203 230 230 256 256 18337.3 300 370 350 1690 2520 32 950
-15-
S L5 ( )( )-M/M2 Series Application Range and Dimensions
ASME 150Lb RF
3×M×6 76 117 120 135 135 2533.9 150 260 220 980 1480 26 180
6.18
Welded
SL503
3×M2×6 76 117 120 135 135 2587.7 150 260 220 980 1480 26 180
4×N2×6 102 146 146 154 154 3421.2 150 265 240 1055 1615 26 250
4×P×6 102 156 156 168 168 4500.7 150 310 265 1270 1920 26 400
4×P×8 102 156 156 168 168 4500.7 200 310 265 1270 1920 29 400
6×Q0×8 152 200 200 210 210 5462.9 200 330 265 1310 1950 29 500
6×Q1×8 152 210 210 222 222 6418.4 200 340 280 1410 2090 29 530
6×Q×8 152 210 210 222 222 7791.3 200 360 290 1450 2150 29 550
6×Q×10 152 210 210 222 222 7791.3 250 360 290 1450 2150 31 600
6×R×10 152 216 216 240 240 11272.0 250 400 320 1605 2385 31 800
5.49
6×RR×10 152 216 216 240 240 12687.6 250 400 320 1605 2385 31 800
Connection size means the inlet or outlet nominal flange size.
Note carefully that inlet diameter means the inside diameter of the safety valve inlet, which is not the same as inlet flange size
-16-
S L6 ( ) ( )-M2 Series Application Range and Dimensions
(Unit:mm)
Thickness of Approx
Pressure and Temperature Limits Dismantlin
Connection Inlet Dia. Throat area Outlet Center to Face Height Flange .
Style Size MPaG g Height
mm2 Dia. Inlet Outlet Weight
Inlet Outlet 400℃ 510℃ 571℃ 621℃ B H’ L H HA T T1 kg
2×F1×3 40 216.4 80 150 150 600 900 48 19.1 90
2×G1×3 40 353.0 80 150 150 600 900 48 19.1 90
2×H×3 40 555.7 80 150 150 600 900 48 19.1 90
2-1/2×J×4 50 907.9 100 170 180 715 1100 55 24 120
2-1/2×K×6 65 1294.6 150 200 190 865 1300 58 26 140
3×K2×6 65 1727.6 150 210 200 970 1500 68 26 170
ASME 1500Lb RF
3×M×6 76 137 140 163 163 2533.9 150 260 220 1090 1630 26 200
10.3
Welded
SL603
3×M2×6 76 137 140 163 163 2587.7 150 260 220 1090 1630 26 200
4×N2×6 102 160 160 184 184 3421.2 150 265 240 1270 1920 26 320
4×P×6 102 170 172 199 199 4500.7 150 310 265 1440 2170 26 500
4×P×8 102 170 172 199 199 4500.7 200 310 265 1440 2170 29 520
6×Q0×8 152 200 206 233 233 5462.9 200 330 265 1470 2190 29 600
6×Q1×8 152 205 216 242 242 6418.4 200 340 280 1620 2410 29 650
6×Q×8 152 210 220 251 251 7791.3 200 360 290 1640 2440 29 800
6×Q×10 152 210 220 251 251 7791.3 250 360 290 1640 2440 31 850
6×R×10 152 215 224 254 254 11272.0 250 400 320 1820 2710 31 1050
8.23
6×RR×10 152 215 224 254 254 12687.6 250 400 320 1820 2710 31 1050
-17-
S L7 ( )( )~9( )( )-H1 Series Parts Names
Cap
Fork Lever Adj. Screw Lock Nut
Easing Lever Adjusting Screw
Thrust Ball Bearing Bonnet
Upper Spring Washer
Spring
Spindle
Lower Spring Washer
Step Ring
Spindle Guide
Coned Disc Spring Stud Bolt & Nut
Lift Stopper Pin
Orifice Piece Center Throttle
Cooling
Stud Bolt & Nut
Guide
Disc Collar
Holder
Upper Ring
Body
Disc
Upper Lock Bolt
Lower Ring
Lower Lock Bolt
Nozzle
-18-
S L7 ( ) ( )~9( ) ( )-H1 Series Parts Materials
-19-
S L7 ( )1~8( )1-H1 Series Application Range and Dimensions
(Unit:mm)
Thickness of
Pressure and Temperature Limits Inlet Dismantling Approx.
Connection Throat area Outlet Center to Face Height Flange
Style Size MPaG Dia. Height Weight
mm2 Dia. Inlet Outlet
Inlet Outlet 400℃ 510℃ 571℃ 621℃ B H’ L H HA T T1 kg
2×F1×4 40 216.4 100 230 169 930 1230 65 32 150
2×G1×4 40 353.0 100 230 169 930 1230 65 32 150
ASME 2500Lb RF
ASME 300Lb RF
3×K×6 13.7 13.7 9.28 5.66 65 1294.6 150 270 240 1165 1515 84 37 300
3×K2×6 65 1727.6 150 280 240 1325 1775 84 37 350
4×L×6 80 2010.9 150 280 240 1350 1800 96 37 350
4×M×6 80 2533.9 150 300 260 1570 2120 96 37 500
4×M2×6 80 2587.7 150 300 260 1570 2120 96 37 500
2×F1×4 40 216.4 100 230 169 930 1230 65 32 150
2×G1×4 40 353.0 100 230 169 930 1230 65 32 150
ASME 2500Lb RF
ASME 300Lb RF
3×K×6 17.1 17.1 9.28 5.66 65 1294.6 150 270 240 1265 1715 84 37 350
3×K2×6 65 1727.6 150 280 240 1475 1975 84 37 400
4×L×6 80 2010.9 150 280 240 1500 2000 96 37 400
4×M×6 80 2533.9 150 300 260 1620 2270 96 37 650
4×M2×6 80 2588.7 150 300 260 1620 2270 96 37 650
-20-
S L7 ( )3~9( )3-H1 Series Application Range and Dimensions
(Unit:mm)
Max. temperature material
Pressure Inlet Dia. specification for Inlet Neck A Inlet Throat Dismantling Thickness Approx.
Connection Outlet Center to Face Height
Style Size Limits area Height of Flange Weight
Neck O.D. Dia.
MPaG mm2
Inlet Outlet B 400℃ 510℃ 571℃ 621℃ H’ L H HA T1 kg
1-1/2×F1×4 40 90 90 96 96 216.4 100 250 169 960 1260 32 150
1-1/2×G1×4 40 90 90 96 96 353.0 100 250 169 960 1260 32 150
ASME 300Lb RF
2-1/2×K×6 13.7 65 120 125 145 145 1294.6 150 305 240 1200 1550 37 300
2-1/2×K2×6 65 135 145 152 152 1727.6 150 305 240 1370 1820 37 350
3×L×6 76 140 140 155 155 2010.9 150 305 240 1370 1820 37 350
3×M×6 76 150 150 170 170 2533.9 150 305 260 1570 2120 37 500
3×M2×6 76 150 150 170 170 2587.7 150 305 260 1570 2120 37 500
1-1/2×F1×4 40 95 95 105 105 216.4 100 250 169 960 1260 32 150
1-1/2×G1×4 40 95 95 105 105 353.0 100 250 169 960 1260 32 150
1-1/2×H×4 40 95 95 105 105 555.7 100 250 169 960 1260 32 150
ASME 300Lb RF
2×J×4 50 110 110 130 130 907.9 100 250 220 1120 1420 32 250
Welded
SL803
2-1/2×K×6 65 130 130 145 145 1294.6 150 305 240 1300 1750 37 350
17.1
2-1/2×K2×6 65 145 145 160 160 1727.6 150 305 240 1520 2020 37 400
3×L×6 76 150 155 170 170 2010.9 150 305 240 1520 2020 37 400
3×M×6 76 160 165 185 185 2533.9 150 305 260 1620 2270 37 650
3×M2×6 76 160 165 185 185 2587.7 150 305 260 1620 2270 37 650
4×P×8 102 210 220 240 240 4500.7 200 396 315 1900 2800 42 950
1-1/2×F1×4 40 105 105 120 120 216.4 100 250 169 960 1260 32 150
1-1/2×G1×4 40 105 105 120 120 353.0 100 250 169 960 1260 32 150
1-1/2×H×4 40 105 105 120 120 555.7 100 250 169 960 1260 32 150
ASME 300Lb RF
2×J×4 50 125 125 145 145 907.9 100 250 220 1120 1420 32 250
Welded
SL903
2-1/2×K×6 65 145 145 165 165 1294.6 150 305 240 1300 1750 37 350
21.0
2-1/2×K2×6 65 155 155 180 180 1727.6 150 305 240 1520 2020 37 400
3×L×6 76 160 170 195 195 2010.9 150 305 240 1520 2020 37 400
3×M×6 76 165 180 210 210 2533.9 150 305 260 1620 2270 37 650
3×M2×6 76 165 180 210 210 2587.7 150 305 260 1620 2270 37 650
4×P×8 102 220 240 265 265 4500.7 200 396 315 1900 2800 42 950
-21-
S L7 ( )( )~8( )( )-H2 Series Parts Names
Cap
Fork Lever Adj.Screw
Adj. Screw Lock
Lock Nut Nut
Easing
EasingLever
Lever
Adjusting
Adjusting Screw
Screw
ThrustThrust
BallBall
Bearing
Bearing Bonnet
Bonnet
ネ押え
Upper
Upper Spring
Spring Washer
Washer
Spring
Spindle
Lower
Upper
Lower Spring Washer
Spring
Spring Washer
Step Ring
Spindle
SpindleGuide
Guide
Hex. Bolt
Stud Bolt&Nut
Lift Stopper
Orifice Piece Pin
Center Throttle Cooling
Stud Bolt Disc Collar
& Nut
Guide
Holder
Body
Upper Ring
Disc
Upper Lock
Upper Lock Bolt
Bolt
Lower Ring
Lower Ring
Lower
Lower Lock Bolt
Lock Bolt
Nozzle
Nozzle
(Unit:mm2)
Orifice Letter F1 G1 H J K K2 L M M2
Throat area 216.4 353.0 555.7 907.9 1294.6 1727.6 2010.9 2533.9 2587.7
-22-
S L7 ( ) ( )~8( ) ( )-H2 Series Parts Materials
(Inconel X)
Lower Spring Washer SUS403
Upper Upper Spring Washer SUS403
Spring
Washer Thrust Ball Bearing Thrust Metal
Spring Carbon Steel or Alloy Steel
Adjusting Screw SUS420J2
Adj. Screw Lock Nut SUS304
Orifice Piece SCS13
Lift Stopper SUS420J2
Center Throttle SUS304
Step Ring SUS420J2
Stud Bolt & Nut(Body) SNB7 / S45C SNB16 / A194-4
Stud Bolt & Nut(Bonnet) SNB7 / S45C
Cap FCMB310
Fork Lever FCMB310
Easing Lever FCMB310
Pin SUS304
*1:Stellite deposited on the seat surface.
-23-
S L7 ( )1~8( )1-H2 Series Application Range and Dimensions
(Unit:mm)
Thickness of
Pressure and Temperature Limits Inlet Throat Dismantling Approx.
Connection Outlet Center to Face Height Flange
Style Size MPaG Dia. area Height Weight
Dia. Inlet Outlet
mm2
Inlet Outlet 400℃ 510℃ 571℃ 621℃ B H’ L H HA T T1 kg
1-1/2×F1×4 40 216.4 100 220 200 920 1200 58 32 102
1-1/2×G1×4 40 353.0 100 220 200 920 1200 58 32 102
ASME 2500Lb RF
ASME 300Lb RF
2-1/2×K×6 13.7 13.7 9.28 5.66 65 1294.6 150 270 240 1160 1530 74 37 217
2-1/2×K2×6 65 1727.6 150 270 240 1250 1690 77 37 250
3×L×6 80 2010.9 150 280 260 1260 1700 84 37 258
3×M×6 80 2533.9 150 280 260 1525 2090 84 37 447
3×M2×6 80 2587.7 150 280 260 1525 2090 84 37 447
1-1/2×F1×4 40 216.4 100 220 200 920 1200 58 32 102
1-1/2×G1×4 40 353.0 100 220 200 920 1200 58 32 102
ASME 2500Lb RF
ASME 300Lb RF
2-1/2×K×6 17.1 17.1 9.28 5.66 65 1294.6 150 270 240 1160 1530 74 37 217
2-1/2×K2×6 65 1727.6 150 270 240 1250 1690 77 37 250
3×L×6 80 2010.9 150 280 260 1260 1700 84 37 258
3×M×6 80 2533.9 150 280 260 1525 2090 84 37 447
3×M2×6 80 2588.7 150 280 260 1525 2090 84 37 447
-24-
S L7 ( )3~8( )3-H2 Series Application Range and Dimensions
(Unit:mm)
Max. temperature material
Pressure Inlet Dia. specification for Inlet Neck A Inlet Throat Dismantling Thickness Approx.
Connection Outlet Center to Face Height
Style Size Limits area Height of Flange Weight
Neck O.D. Dia.
MPaG mm2
Inlet Outlet B 400℃ 510℃ 571℃ 621℃ H’ L H HA T1 kg
1-1/2×F1×4 40 90 90 96 96 216.4 100 250 200 950 1230 32 102
1-1/2×G1×4 40 90 90 96 96 353.0 100 250 200 950 1230 32 102
ASME 300Lb RF
2-1/2×K×6 13.7 65 120 120 135 135 1294.6 150 305 240 1200 1550 37 217
2-1/2×K2×6 65 130 130 145 145 1727.6 150 305 240 1285 1725 37 250
3×L×6 76 140 140 155 155 2010.9 150 305 260 1285 1725 37 258
3×M×6 76 150 150 162 162 2533.9 150 305 260 1570 2115 37 447
3×M2×6 76 150 150 162 162 2587.7 150 305 260 1570 2115 37 447
1-1/2×F1×4 40 92 92 104 104 216.4 100 250 200 950 1230 32 102
1-1/2×G1×4 40 92 92 104 104 353.0 100 250 200 950 1230 32 102
ASME 300Lb RF
1-1/2×H×4 40 92 92 104 104 555.7 100 250 200 950 1230 32 102
2×J×4 50 108 108 127 127 907.9 100 250 220 1010 1325 32 148
Welded
SL803
2-1/2×K×6 17.1 65 128 128 143 143 1294.6 150 305 240 1200 1550 37 217
2-1/2×K2×6 65 143 143 155 155 1727.6 150 305 240 1285 1725 37 250
3×L×6 76 146 152 165 165 2010.9 150 305 260 1285 1725 37 258
3×M×6 76 158 162 174 174 2533.9 150 305 260 1570 2115 37 447
3×M2×6 76 158 162 174 174 2587.7 150 305 260 1570 2115 37 447
-25-
SL10( )( )-H1 Series Parts Names
Adj. Screw
Adj. Screw Lock
Lock Nut Nut
Spindle
Spindle
Bonnet
Bonnet
Spring
Spring
LowerLower
SpringSpring Washer
バネ受け
Washer
StepStepRingRing
皿バネ
Spindle
棒ガイド Guide
Coned Disc Spring
Stud Bolt Hex.& NutBolt Lift Stopper
Lift Stopper
クーリングスプール Cooling
Cooling Center Throttle
センタースロットル
Pin Stud Bolt & Nut
植込ボルト/ナット
Orifice Piece
Orifice Piece Guide
Guide
Discディス Collar Upper Ring
上部加減輪
Holder Lower Ring
下部加減輪
Upper Upper
LockLockBolt
Bolt
Lower Lock
Lower Bolt
Lock Bolt
下部ロックボルト
Disc
デ
Body
Body
Nozzle
Nozzl
(Unt:mm2)
Orifice Letter J3 K3 L M2
Throat area 1164.1 1847.4 2010.9 2587.7
-26-
SL10( ) ( )-H1 Series Parts Materials
-27-
SL10( )( )-H1 Series Application Range and Dimensions
(Unit:mm)
Pressure and Temperature Limits Dismantling Approx.
Connection Inlet Dia. Throat area Outlet Center to Face Height
Size MPaG Height Weight
mm2 Dia.
Inlet Outlet 400℃ 450℃ 549℃ 571℃ 621℃ B H’ L H HA kg
-28-
Note:
-29-
RPE Series Pilot Safet y Valve of Economaizer Parts Names
-30-
RPE Series Application Range and Dimensions
300Lb
150Lb
600Lb
150Lb
3×6 10.2 8.7 7.5 80 4069.4 150 230 239 950 1150 1/2 180
4×6 100 6358.5 150 255 274 1010 1210 1/2 230
6×8 150 14306.6 200 355 350 1220 1420 1/2 370
8×10 200 25434.0 250 445 450 1420 1620 1/2 620
1-1/2×3 40 651.1 80 135 175 760 960 1/2 100
1-1/2×3 40 1017.3 80 135 175 760 960 1/2 110
RPE561
900Lb
150Lb
2×3 15.3 13.1 11.2 50 1589.6 80 135 200 820 1020 1/2 130
3×6 80 4069.4 150 240 239 960 1160 1/2 190
4×6 100 6358.5 150 275 274 1030 1230 1/2 240
1-1/2×3 40 651.1 80 135 185 760 960 1/2 100
1-1/2×3 40 1017.3 80 135 185 760 960 1/2 110
RPE661
1500Lb
300Lb
2×3 25.0 21.9 18.7 50 1589.6 80 135 210 820 1020 1/2 130
3×6 80 4069.4 150 270 250 1000 1200 1/2 200
4×6 100 6358.5 150 285 285 1050 1250 1/2 250
1-1/2×3 40 651.1 80 135 200 770 970 1/2 110
2500Lb
RPE761
300Lb
1-1/2×3 25.0 25.0 25.0 40 1017.3 80 135 200 770 970 1/2 120
2×3 50 1589.6 80 135 230 830 1030 1/2 140
※1: Minimum Pressure:2MPa
Connection size means the inlet or outlet nominal flange size.
-31-
PCV Series Pow er actuated pressure relievin g valve Parts Names
Outlet Flange
Stad Bolt
& Nut
Nozzle
Disc
Spring
Guide
Damper
Orifice
Body
Pilot Valve ASSY.
Gasket
PCV100~1000
Welded type
PCV100~1000 (unit:mm2)
Orifice Letter 30 37.5 49 60 75 112.5 150
Throat area 706.9 1104.5 1885.7 2827.4 4417.9 9940.2 17671.5
-32-
PCV Series Pow er actuated pressure relievin g valve Parts Materials
PCV100~900
T y p e PCV( )3( ) PCV( )5( ) PCV( )6( ) PCV( )7( )
400゜C 510゜C 571゜C 621゜C
Maximum Temperature
750゜F 950゜F 1060゜F 1150゜F
※1
Nozzle SA105M SA182M-F12 SA182M-F22 SA182M-F91
Disc Inconel
PCV1000
T y p e PCV1033 PCV1053 PCV1073
400゜C 510゜C 621゜C
Maximum Temperature
750゜F 950゜F 1150゜F
※1
Nozzle SA105M SA182M-F12 SA182M-F91
Disc Inconel
-33-
P CV1 ( )1~3 ( )1 Series Application Range and Dimensions
W
D
HA
H
ASME 150Lb RF
3×60×6 1.96 1.27 80 2827.4 150 880 685 480 1160 590
4×75×6 100 4417.9 150 1000 740 590 1320 900
6×112.5×8 150 9940.2 200 1220 860 805 1550 1500
8×150×10 200 17671.5 250 1530 1000 1040 1900 2200
ASME 150Lb RF
3×60×6 1.96 1.96 1.96 80 2827.4 150 880 685 480 1160 590
4×75×6 100 4417.9 150 1000 740 590 1320 900
6×112.5×8 150 9940.2 200 1220 860 805 1550 1500
8×150×10 200 17671.5 250 1530 1000 1040 1900 2200
ASME 150Lb RF
3×60×6 3.72 3.45 2.62 80 2827.4 150 880 685 480 1160 590
4×75×6 100 4417.9 150 1000 740 590 1320 900
6×112.5×8 150 9940.2 200 1220 860 805 1550 1500
8×150×10 200 17671.5 250 1530 1000 1040 1900 2200
※1: Minimum Pressure:1MPa
-34-
P CV4 ( )1~9 ( )1 Series Application Range and Dimensions
ASME 150Lb RF
3×60×6 5.5 4.4 2.2 1.34 80 2827.4 150 880 685 480 1160 590
4×75×6 100 4417.9 150 1000 740 590 1320 900
6×112.5×8 150 9940.2 200 1220 860 805 1550 1500
8×150×10 200 17671.5 250 1530 1000 1040 1900 2200
ASME 150Lb RF
ASME 150Lb RF
ASME 300Lb RF
2-1/2×49×4 13.7 13.7 9.28 5.66 65 1885.7 100 750 625 400 1010 360
3×60×6 80 2827.4 150 900 685 480 1200 600
4×75×6 100 4417.9 150 1015 740 590 1360 920
ASME 300Lb RF
2-1/2×49×4 17.1 17.1 9.28 5.66 65 1885.7 100 750 625 400 1010 360
3×60×6 80 2827.4 150 900 685 480 1200 600
4×75×6 100 4417.9 150 1015 740 590 1360 920
※1: Minimum Pressure:1MPa
-35-
P CV4 ( )3~10 ( )3 Series Application Range and Dimensions
W
D
HA
H
B
A
Connection Pressure Inlet Dia. Max. temperature material specification Throat Outlet Height Wide
Dismantlin Approx
Style Size Limits (mm) for Inlet Neck A Inlet Neck O.D. area Dia. g Height Weight
Inlet Outlet (MPaG) B 400℃ 510℃ 571℃ 621℃ (mm2) (mm) H (mm) W (mm) D (mm) HA (mm) (kg)
1-1/2×30×3 40 65 70 85 85 706.9 80 490 525 235 700 140
2×37.5×4 50 80 90 105 105 1104.5 100 600 560 300 830 210
PCV403~PCV603
ASME 150Lb RF
2-1/2×49×4 65 105 110 135 135 1885.7 100 735 625 400 970 350
Welded
3×60×6 10.3 80 130 135 165 165 2827.4 150 880 685 480 1160 590
4×75×6 100 160 175 210 210 4417.9 150 1000 740 590 1320 900
6×112.5×8 150 230 250 300 300 9940.2 200 1220 805 1550 1500
860
8×150×10 4.1 200 275 285 310 310 17671.5 250 1530 1000 1040 1900 2200
Connection Pressure Inlet Dia. Max. temperature material specification Throat Outlet Height Wide
Dismantlin Approx
Style Size Limits (mm) for Inlet Neck A Inlet Neck O.D. area Dia. g Height Weight
Inlet Outlet (MPaG) B 400℃ 510℃ 571℃ 621℃ (mm2) (mm) H (mm) W (mm) D (mm) HA (mm) (kg)
1-1/2×30×3 40 75 85 130 130 706.9 80 505 525 235 730 150
PCV703~PCV903
ASME 300Lb RF
2×37.5×4 50 95 105 160 160 1104.5 100 615 560 300 870 220
Welded
2-1/2×49×4 20.6 65 120 135 205 205 1885.7 100 750 625 400 1010 360
3×60×6 80 145 165 250 250 2827.4 150 900 685 480 1200 600
4×75×6 100 185 210 315 315 4417.9 150 1015 740 590 1360 920
Welded
2×37.5×4 50 105 130 170 1104.5 100 615 560 300 870 220
30
2-1/2×49×4 65 135 165 220 1885.7 100 750 625 400 1010 360
3×60×6 80 165 205 270 2827.4 150 900 685 480 1200 600
※1: Minimum Pressure:1MPa
-36-
-37-
REC-STM / RECL-STM Series Code S yst em
-STM
REC 8 6 1 -3 C3 (T)
-PE
Cap code
Series
-5 - 900#
Steam
Code
No number is shown when nominal pressure for the
Shipping
classes
-38-
REC-STM / RECL-STM Series Cap Structure Code
-39-
REC-STM / RECL-STM Series Parts names and materials
Nut
Guide Flange
Guide Sleeve
Disc Holder
Disc
Drain
Adj. Ring Lock Bolt
Nozzle
Up to 800°F(427℃)
REC( )61-STM or 1000°F(538℃)
Parts Name RECL( )61-STM
REC( )81-STM or RECL( )81-STM
REC( )71-STM or
RECL( )71-STM
Body SCPH2 or A216-WCB SCPH2 or A217-WC6
Bonnet SCPH2 or A216-WCB
Cap Malleable cast iron
Nozzle SUS304 or SCS13
Disc Precipitation hardening type stainless steel or Inconel X-750 or equivalent
Disc holder SUS403
Adjusting ring SUS304 or SCS13
Adjusting ring rock bolt Carbon steel
Guide sleeve SUS304
Guide
Guide flange A105
Spindle SUS403
Adjusting screw SUS403
Adjusting screw lock nut Steel
Spring washer Steel
Spring Carbon steel or alloy steel
Stud bolt SNB7
Nut Carbon steel
Spindle nut Steel
Lifting washer Steel
Open lever Malleable cast iron
Fork lever Malleable cast iron
Note: Production specifications and material are subject to change without notice
-40-
REC-STM / RECL-STM Series Application Ran ge and Dimensions (ASME Flange)
Unit:mm
ASME Flange C e n t e r t o F a c e Thickness Height Weight
Nominal
diameter
Type Inlet O u t l e t of Flange (TYPE A)
Inlet Outlet (T) (HA) (HC) (HD) (Kg)
(H‘) (L)
3/4 D1 REC & RECL 161,171 150# 150# 92 96 30 320 315 365 9
3/4 D1 REC & RECL 261,271 300# 150# 92 96 30 320 315 365 9
3/4 D1 REC & RECL 361,371,381 300# 150# 92 96 30 320 315 365 9
1D2 REC & RECL 161,171 150# 150# 105 114 32 335 330 375 11
1D2 REC & RECL 261,271 300# 150# 105 114 32 335 330 375 11
1D2 REC & RECL 361,371,381 300# 150# 105 114 32 335 330 375 11
1D2 RECL 461,471,481 600# 150# 105 114 32 345 345 390 13
1E2 REC & RECL 161,171 150# 150# 105 114 32 335 330 375 11
1E2 REC & RECL 261,271 300# 150# 105 114 32 335 330 375 12
1E2 REC & RECL 361,371,381 300# 150# 105 114 32 335 330 375 12
1E2 RECL 461,471,481 600# 150# 105 114 32 345 345 390 14
1 1/2 F2 REC & RECL 161,171 150# 150# 124 121 39 350 350 395 15
1 1/2 F2 REC & RECL 261,271 300# 150# 124 121 39 350 350 395 15
1 1/2 F2 REC & RECL 361,371,381 300# 150# 124 152 40 350 350 395 15
1 1/2 F2 RECL 461,471,481 600# 150# 124 152 41 365 360 410 17
1 1/2 G3 REC & RECL 161,171 150# 150# 124 121 39 375 375 420 17
1 1/2 G3 REC & RECL 261,271 300# 150# 124 121 39 375 375 420 17
1 1/2 G3 REC & RECL 361,371,381 300# 150# 124 152 40 405 400 450 19
1 1/2 G3 RECL 461,471,481 600# 150# 124 152 41 405 400 450 21
1 1/2 H3 REC & RECL 161,171 150# 150# 130 124 39 425 420 465 17
1 1/2 H3 REC & RECL 261,271 300# 150# 130 124 39 425 420 465 20
2H3 REC & RECL 361,371 300# 150# 130 124 41 460 460 505 22
2H3 RECL 461,471 600# 150# 154 162 44 485 485 530 25
2H3 REC & RECL 381 300# 150# 130 124 44 460 460 505 22
2H3 RECL 481 600# 150# 130 124 44 460 460 505 22
2J3 REC & RECL 161,171 150# 150# 137 124 41 475 475 520 23
2J3 REC & RECL 261,271 300# 150# 137 124 41 475 475 520 24
3J4 REC & RECL 361,371 300# 150# 184 181 47 590 585 635 44
3J4 RECL 461,471 600# 150# 184 181 50 590 585 635 50
3J4 REC & RECL 381 300# 150# 184 181 50 590 585 635 45
3J4 RECL 481 600# 150# 184 181 50 590 585 635 45
3K4 REC & RECL 161,171 150# 150# 156 162 47 570 565 615 41
3K4 REC & RECL 261,271 300# 150# 156 162 47 507 565 615 43
3K4 REC & RECL 361,371 300# 150# 156 162 47 605 600 650 47
3K4 RECL 461,471 600# 150# 184 181 50 635 630 680 57
3K4 REC & RECL 381 300# 150# 156 162 50 605 600 650 47
3K4 RECL 481 600# 150# 156 162 50 605 600 650 47
-41-
REC-STM / RECL-STM Series Application Range and Dimensions (ASME Flange)
Unit:mm
ASME Flange C e n t e r t o F a c e Thickness Height Weight
Nominal
Type Inlet Inlet of Flange (TYPE A)
diameter Inlet Outlet (HA) (HC) (HD)
(H‘) (L) (T) (Kg)
3L4 REC & RECL 161,171 150# 150# 156 165 47 620 615 665 52
3L4 REC & RECL 261,271 300# 150# 156 165 47 620 615 665 57
4L6 REC & RECL 361,371,381 300# 150# 179 181 50 685 680 730 72
4L6 RECL 461,471 600# 150# 179 203 56.5 685 680 730 77
4L6 RECL 481 600# 150# 181 203 57 685 680 730 77
4M6 REC & RECL 161,171 150# 150# 178 184 50 645 640 685 58
4M6 REC & RECL 261,271 300# 150# 178 184 50 645 640 685 72
4M6 REC & RECL 361,371,381 300# 150# 178 184 50 760 755 820 90
4M6 RECL 461,471,481 600# 150# 178 203 56.5 820 815 880 111
4N6 REC & RECL 161,171 150# 150# 197 210 50 710 705 755 76
4N6 REC & RECL 261,271 300# 150# 197 210 50 710 705 755 81
4N6 REC & RECL 361,371,381 300# 150# 197 210 50 840 835 905 105
4N6 RECL 461,471,481 600# 150# 197 222 56.5 840 835 905 11 3
4P6 REC & RECL 161,171 150# 150# 181 229 50 850 845 915 83
4P6 REC & RECL 261,271 300# 150# 181 229 50 850 845 915 105
4P6 REC & RECL 361,371,381 300# 150# 225 254 50 945 940 1010 140
4P6 RECL 461,471,481 600# 150# 225 254 56.5 945 940 1010 142
4P6 RECL 571,581 900# 150# 225 254 63 945 940 1010 162
6Q8 REC & RECL 161,171 150# 150# 240 241 44 990 985 1050 160
6Q8 REC & RECL 261,271 300# 150# 240 241 55 990 985 1050 170
6Q8 REC & RECL 361,371,381 300# 150# 240 241 56 1075 1070 1155 196
6Q8 RECL 461,471,481 600# 150# 240 241 66 1075 1070 1155 253
6R8 REC & RECL 161,171 150# 150# 240 241 44 990 985 1055 220
6R8 REC & RECL 261,271,281 300# 150# 240 241 56 990 985 1055 230
6R10 REC & RECL 361,371 300# 150# 240 267 56 1080 1075 1155 250
6R10 RECL 461,471,481 600# 150# 240 267 66 1095 1090 1175 260
8T10 REC & RECL 161,171 150# 150# 276 279 48 1085 1080 1165 245
8T10 REC & RECL 261,271 300# 150# 276 279 60 1085 1080 1165 300
8T10 REC & RECL 361,371,381 300# 150# 276 279 60 1140 1135 1220 300
8T10 RECL 461-3, 471-3, 481-3 300# 150# 276 279 60 1270 1265 1350 320
-42-
R E C-STM / RECL-STM Series Application Range and Dimensions (JIS Flange)
Unit:mm
JIS Flange Center to Face Thickness Height Weight
Nominal
Type Inlet Outlet of Flange (TYPE A)
diameter Inlet Outlet (HA) (HC) (HD)
(H‘) (L) (T) (Kg)
20D25 REC & RECL 164,174 10 K 10 K 92 96 30 320 315 365 9
20D25 REC & RECL 264,274 20 K 10 K 92 96 30 320 315 365 9
20D25 REC & RECL 364,374,384,394 30 K 10 K 92 96 30 320 315 365 9
25D50 REC & RECL 164,174 10 K 10 K 105 114 32 335 330 375 11
25D50 REC & RECL 264,274 20 K 10 K 105 114 32 335 330 375 11
25D50 REC & RECL 364,374,384,394 30 K 10 K 105 114 32 335 330 375 11
25E50 REC & RECL 164,174 10 K 10 K 105 114 32 335 330 375 11
25E50 REC & RECL 264,274 20 K 10 K 105 114 32 335 330 375 12
25E50 REC & RECL 364,374,384,394 30 K 10 K 105 114 32 335 330 375 12
40F50 REC & RECL 164,174 10 K 10 K 124 121 39 350 345 395 15
40F50 REC & RECL 264,274 20 K 10 K 124 121 39 350 345 395 15
40F50 REC & RECL 364,374,384,394 30 K 10 K 124 152 40 350 345 395 15
40G80 REC & RECL 164,174 10 K 10 K 124 212 39 375 375 420 17
40G80 REC & RECL 264,274 20 K 10 K 124 121 39 375 375 420 17
40G80 REC & RECL 364,374,384,394 30 K 10 K 124 152 40 405 400 450 19
40H80 REC & RECL 164,174 10 K 10 K 130 124 39 425 420 465 17
40H80 REC & RECL 264,274 20 K 10 K 130 124 39 425 420 465 20
50H80 REC & RECL 364,374(384,394) 30 K 10 K 130 124 41 460 460 505 22
50H80 REC & RECL 384,394 30 K 10 K 130 124 44 460 460 505 22
50J80 REC & RECL 164,174 10 K 10 K 137 124 41 475 475 520 23
50J80 REC & RECL 264,274 20 K 10 K 137 124 41 475 475 520 24
80J100 REC & RECL 364,374(384,394) 30 K 10 K 184 181 47 590 585 635 44
80J100 REC & RECL 384,394 30 K 10 K 184 181 50 590 585 635 45
80K100 REC & RECL 164,174 10 K 10 K 156 162 47 570 565 615 41
80K100 REC & RECL 264,274 20 K 10 K 156 162 47 570 565 615 43
80K100 REC & RECL 364,374(384,394) 30 K 10 K 156 162 47 605 600 650 47
80K100 REC & RECL 384,394 30 K 10 K 156 162 50 605 6000 650 47
80L100 REC & RECL 164,174 10 K 10 K 156 165 47 620 615 665 52
80L100 REC & RECL 264,274 20 K 10 K 156 165 47 620 615 665 54
100L150 REC & RECL 364,374,384,394 30 K 10 K 179 181 50 685 680 730 72
100M150 REC & RECL 164,174 10 K 10 K 178 184 50 645 640 685 58
100M150 REC & RECL 264,274 20 K 10 K 178 184 50 645 640 685 72
100M150 REC & RECL 364,374,384,394 30 K 10 K 178 184 50 760 755 820 90
100N150 REC & RECL 164,174 10 K 10 K 197 210 50 710 705 755 76
100N150 REC & RECL 264,274 20 K 10 K 197 210 50 710 705 755 81
100N150 REC & RECL 364,374,384,394 30 K 10 K 197 210 50 840 835 905 105
-43-
REC-STM / RECL-STM Series Application Range and Dimensions (JIS Flange)
Unit:mm
JIS Flange Center to Face Thickness Height Weight
Nominal
Type Inlet Outlet of Flange (TYPE A)
diameter Inlet Outlet (HA) (HC) (HD)
(H‘) (L) (T) (Kg)
100P150 REC & RECL 164,174 10 10 181 229 50 850 845 915 83
100P150 REC & RECL 264,274 20 10 181 229 50 850 845 915 105
100P150 REC & RECL 364,374,384,394 30 10 225 254 50 945 940 1010 140
150Q200 REC & RECL 164,174 10 10 240 241 44 990 985 1050 160
150Q200 REC & RECL 264,274 20 10 240 241 55 990 985 1050 170
150Q200 REC & RECL 364,374,384,394 30 10 240 241 56 1075 1070 1155 196
150R200 REC & RECL 164,174 10 10 240 241 44 990 985 1055 220
150R200 REC & RECL 264,274 20 10 240 241 55 990 985 1055 230
150R250 REC & REB 364,374,384,394 30 10 240 267 56 1080 1075 1155 250
200T250 REC & RECL 164,174 10 10 276 279 48 1085 1080 1165 245
200T250 REC & RECL 264,274 20 10 276 279 48 1085 1080 1165 300
200T250 REC & RECL 364,374,384,394 30 10 276 279 60 1140 1135 1220 300
200T250 REC & RECL 464-3,474-3,484-3,494-3 30 10 276 279 60 1270 1265 1350 320
-44-
RECL-E-PE Series Parts name and materials
5
10
No. Parts Name Material
15 1 Body A105
11 2 Bonnet A216-WCB or SCPH2
3 Nozzle A105
17 4 Disc SUS630
12 5 Cap CARBON STEEL
6 Adjusting ring STAINLESS STEEL
2
7 Adj. ring lock bolt CARBON STEEL
13 8 Guide STAINLESS STEEL
9 Spindle STAINLESS STEEL
9
10 Adjusting screw STAINLESS STEEL
12 11 Adj. screw lock nut STEEL
14 12 Spring Washer STEEL
13 Spring ALLOY STEEL
16 14 Stud bolt & nut ALLOY STEEL
8 15 Stud bolt & nut ALLOY STEEL
Non-asbestos or
3 16 Gasket
dead soft steel
4 17 Gasket
Non-asbestos or
dead soft steel
6
1
3
7
Center to
Effective ASME Flange Face Dismantling
Nominal Height Weight
Type area Rating Height
diameter Inlet Outlet
cm2
Inlet Outlet H’ L H HD HA kg
11/2×D×2 RECL 561,571 0.882 900 300 100 150 430 480 650 36
1
1 /2×D×2 RECL 661,671 0.882 1500 300 100 150 430 480 650 36
11/2×D×3 RECL 761,771 0.882 2500 300 122 180 520 565 780 61
1
1 /2×E×2 RECL 561,571 1.815 900 300 100 150 430 480 650 36
1
1 /2×E×2 RECL 661,671 1.815 1500 300 100 150 430 480 650 36
11/2×E×3 RECL 761,771 1.815 2500 300 122 180 520 565 780 61
1
1 /2×F×3 RECL 561,571 2.433 900 300 122 165 450 500 680 42
11/2×F×3 RECL 661,671 2.433 1500 300 122 165 450 500 680 42
11/2×F×3 RECL 761,771 2.433 2500 300 122 180 520 565 780 61
11/2×G×3 RECL 561,571 3.836 900 300 122 165 470 505 710 43
2×G×3 RECL 661,671 3.836 1500 300 122 200 525 570 790 73
2×G×3 RECL 761,771 3.836 2500 300 122 200 525 570 790 73
2×H×3 RECL 561,571 5.940 900 150 122 175 535 585 800 70
2×H×3 RECL 661,671 5.940 1500 300 122 190 535 585 800 73
-45-
LT3000 Series Code S ystem
LT3 6 6 1 -S -A
Cap code
Special connection code
Inlet connection code
Size code
Temperature classification code
Series code
-46-
LT3000 Series Parts names and materials
10
No. Parts name Material
1 Nozzle SUS304 11
2 Seat SUS304 12
3 Guide Stainless Steel 14
4 Body A105
7
5 Spindle Stainless Steel
6
6 Spring Carbon Steel
7 Upper spring washer Carbon Steel 9
8 Lower spring washer Carbon Steel 5
9 Bonnet A105
8
10 Cap Carbon Steel
18
11 Adjusting screw Stainless Steel
12 Adj. screw lock nut Stainless Steel 15
19
-47-
RVK & RHK Series code s yste m
RVK 1 6 1 -S
-48-
RHK Series Parts name and material
Flux
Seat Effective Relieving Certified
Lift Coefficient determination
Style Size diameter area temperature capacity
(mm) discharge pressure
(mm) (mm2) (℃) (kg/h)
(MPaA)
8×8 200 28 17592 0.68 10690
10×10 250 35 27488 0.68 16710
12×12 300 42 39584 0.68 24060
RVK & RHK
-49-
RVK Series Dimensions and w eight
-50-
Steam Safet y Valve Discharge Pipes ( Drip Pans)
At least 90 % of the safety valve problems reported are nozzle
seat leakage, most of which caused by constraining discharge
pipes.
Fukui works to prevent occurrences of such problems by
making the discharge pipes (drip pans) that are best suited to
safety valves.
You are encouraged to order them along with safety valves.
Standard Drip Pan Dimensions
Outlet d1 d2 A B D
d3
size mm mm mm mm mm
25 25 90 Rc1/4 40 200 50
40 40 125 Rc3/8 60 250 65
50 50 150 Rc1/2 80 270 80
65 65 200 Rc1/2 100 365 90
80 80 200 Rc1/2 120 380 125
100 100 250 Rc3/4 160 395 150
125 125 300 Rc3/4 195 430 175
150 150 300 Rc1 235 460 200
200 200 350 Rc1 310 600 250
Standard type drip pan Close type drip pan
No pre-leak !
Dependable blowoff !
Reliable blowdown !
Cuts your maintenance costs dramatically !!
Without realizing it, you are probably wasting time and money on
popping tests of safety valves themselves and those performed in a
mounted condition on a boiler that are both essential for every
regular boiler inspection.
The JK‐2
can perform tests at normal working pressure.
make low‐fuel‐consumption, low‐cost, low‐noise testing
possible.
is highly reliability due to it directly reads the load.
is microcomputer‐controlled for simplicity, precision, and
speed.
prints out the measurement results.
A jack‐up test is capable of confirming safety valve’s actuation
pressure at equipment operating pressure.
It is a convenient testing method that not only reduces testing
costs, but also effectively controls pollution in the surrounding
area.
-51-
Precautions to Be Observed When Installing Steam Safet y Valves
*Notes
1. In consideration of effects like those of movement caused by contraction upon cooling down, and thermal expansion such
as during full boiler operation and when the safety valve actuates, or the effects of valve operation recoil, design and
installation must provide this gap so that the discharge pipe never comes into contact with the valve outlet pipe and drip
pan.
2. Use or metal bellows and flexible houses is not recommended.
Warranty Conditions
Thank you for using FUKUI products.
Our products are made in standardized manufacturing processes and shipped after undergoing rigorous quality control. Nevertheless, in the event of a failure
attributable to a manufacturing defect, we will either repair or replace the valve free of charge in accordance with the following warranty provisions. Contact us if this
warranty seems applicable.
-52-
Note:
-53-
FUKUI SEISAKUSHO CO.,LTD.
✧Head Office 6.1-chome,Shodai Tajika, Hirakata, Osaka, Japan zip 573-1132 TEL +81-72-857-4521 e-mail:fki@fkis.co.jp
(Factory) FAX +81-72-857-3764