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Series 3800
Pilot.Operated.Pressure.Relief.Valve
Pilot.Operated.Pressure.Relief.Valves
494C
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Table of Contents
Introduction. 2
Principles.o.Operation. 3
Main.Valve.Advantages/Bill.o.Materials. 4-5
Pilot.Control.Valve.Advantages/Bill.o.Materials.6-7
Selection.Table.or.API.Nozzle.Design.8-9
Selection.Tables.or.Full.Port.and.Dual.Outlet.Designs. 10
Air.Capacity.Tables.11-12Natural.Gas.Capacity.Tables.13-14
Water.Capacity.Table. 15
Numbering.System..16-17
Sizing.Inormation. 18
Back.Pressure.Sizing.Factor.Kb. 18
Accessories. 19
Dimensions.and.Weights.or.API.Nozzle.Design.20-21
Dimensions.and.Weights.or.Full.Port.Design. 22
Other.Farris.Engineering.Valves. 23
.......Piloting the Way toPrecision Control
All.Series.3800.valves.are.actuated.by.our.PCF3,.HPCF3.or.PCL.
pilot.controls.with.316.stainless.steel.primary.components.as.
standard.The.main.valve.body.is.carbon.steel.with.316.stain-
less.steel.trim.The.main.valve.is.also.available.in.a.ull.316.
stainless.steel.S4.option,.a.NACE.standard.MR0175.S7.option,.and.a.cryogenic.service.valve
Viton.sot.goods.are.standard.in.both.pilot.control.and.main.
valves.Buna.N,.Neoprene,.ethylene.propylene,.silicone.and.
Teon.sot.goods.are.available.as.options;.contact.Factory.or.
more.inormation
2
The.innovative,.integrally.cast,.anged.semi-nozzle.valves.o.
Series.3800.are.provided.as.sel-contained.units.actuated.by.
the.snap-acting,.non-owing.PCF3.(standard),.HPCF3.(high.
pressure),.and.PCL.(liquid.service).pilot.valves.All.valves.in.the.
series.are.certifed.under.Section.VIII.o.the.ASME.Code.or.Air,.Gas,.Vapor.and.Liquid.Service
Available.in.API.Orifces.D.through.T.as.well.as.ull.bore.mod-
els,.Series.3800.valves.are.provided.with.raised.ace.or.ring.
joint.inlet.anges.rom.150#.through.2500#.ANSI.classes.with.
150#.and.300#.outlets.Set.pressures.range.rom.15.to.6170.
psig.with.temperatures.o.-450F.to.450F.or.standard.options.
Contact.Factory.about.higher.temperature.and..
pressure.requirements
Viton is a registered trademark o DuPont Dow Elastomers
Tefon is a registered trademark o the DuPont Company
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Principles of Operation
Closed Valve Position:.as.the.system.approaches.set.
pressure,.the.pressure.pick-up.transmits.the.pressure.rom.the.
inlet.o.the.main.valve.through.the.pilot.control.and.into.the.
dome.o.the.main.valve.This.pressure.acts.upon.the.top.o.the.
piston.in.the.dome,.holding.the.piston.frmly.against.the.seat.
on.the.nozzle.in.the.main.valve.The.surace.area.o.the.piston.
in.the.dome.o.the.main.valve.is.greater.than.the.seat.area,.so.
the.greater.the.system.pressure,.the.greater.the.orce.holding.
the.piston.on.the.main.valve.seat.As.a.result,.the.pilot.operated.
relie.valve.gets.tighter.as.the.system.pressure.approaches.set.
pressure
Relieving Cycle:.at.the.point.that.the.inlet.pressure,.acting.
on.the.surace.area.o.the.pilot.control.disc,.overcomes.the.
spring.orce.in.the.pilot.valve,.the.pilot.valve.lits.The.PCF3.is..a.non-owing.pilot.control.valve.As.the.seat.assembly.in.the.
pilot.control.begins.to.lit,.it.seals.o.the.ow.o.pressure.to.
both.the.vent.and.the.main.valve.dome.At.the.same.time,.the.
pressure.in.the.dome.is.released.through.the.pilot.vent.Since.
the.pressure.in.the.dome.has.been.released,.the.system.pres-
sure.acting.on.the.bottom.o.the.piston.will.lit.the.piston.and.
will.relieve.system.overpressure
Re-Closing Cycle:.at.the.point.where.the.system.pressure.
blows.down,.the.spring.orce.in.the.pilot.valve.overcomes.the.
orce.o.system.pressure.acting.on.the.pilot.control.seat.as-
sembly.The.pilot.control.redirects.system.pressure.back..
into.the.main.valve.dome,.closing.the.main.valve.Blowdown.
can.be.precisely.adjusted.externally.by.raising.and.lowering..
the.blowdown.adjuster.position.in.the.pilot.valve
Operating Advantages
Bubble-tight closer to set pressure:.Series.3800.valves.oper-
ate.bubble.tight.at.higher.operating.pressure.to.set.pressure.
ratios,.allowing.operators.to.run.very.close.to.the.systems.
maximum.allowable.working.pressure.While.protecting.the.system.rom.overpressure,.Series.3800.allows.maximum.
product.throughput,.increased.system.proftability,.and.reduced.
ugitive.emissions
Unaffected by back pressure:.unlike.a.direct.spring.loaded.
valve,.the.pilot.operated.valves.set.pressure.is.not.aected.
by.back.pressure.The.pilot.control.valve,.isolated.rom.the.
inuence.o.downstream.pressure,.controls.the.main.valves.
opening.and.closing
3
Closed Position
Relieving Position
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Main Valve: Advantage Farris
Convertible Design:.the.unique.convertible.design.mini-
mizes.the.number.o.components.and.maximizes.their.inter-
changeability,.reducing.parts.inventories.and.overall.costs
Convertible Nozzle:.threaded.convertible.nozzles.can.be.
removed.and.replaced.easily.without.actory.service.They.can.
be.installed.with.common.tools.while.the.valve.is.in.line,.saving.
time.and.money
Fewer Internal Components:.the.valve.design.requires.
no.lit.stops.and.the.main.valve.opens.ully.at.set.pressure.The.
orifce.area.is.controlled.by.the.nozzle,.eliminating.the.need.or.
additional.parts.to.restrict.lit.
One Piece Body:.integrally.cast.anges.assure.the.highest.material.integrity.and.eliminate.problems.that.may.occur.with.
welding
Full 316 Stainless Steel Trim:.this.trim.is.standard.and.
includes.nozzle,.piston,.retainer.and.guide.or.long.and.versa-
tile.service.lie
Main Valve Sot Seat:.unlike.metal.seated.valves.which.
require.costly.machining.and.lapping.procedures,.the.main.
valve.sot.seat.is.easily.maintained.and.repaired
Less Weight, Lower Profle:.system.pressure.provides.
the.seating.orce.in.pilot.operated.relie.valves.so.pilot.valves.
are.smaller.in.size.and.weight.than.direct.spring.loaded.valves
Convertible to NACE Service:.with.the.high.quality.
o.construction.materials,.conversion.or.NACE.Service.to.
MR0175.is.simple
Convertible to Cryogenic Service:.easy.conversion.or.
low.temperature.applications
Full Bore Option:.the.ull.bore.option.provides.maximum.
capacity.per.inlet.size
Built.in.conormance.to.ASME.Code.Section.VIII.or.Air,.Gas,.Vapor,.and.Liquid.Service*
*.ASME.Code.stamping.not.*.available.on.ull.port..*..*..*.design.in.liquid.service
15 5 4 7 6 1189
3
18
14
16
12
2
13
17
10
1
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.General Notes:
. . 1..Part.used.on.3inlet.sizes.and.larger.
. . 2..Materials.certifed.in.compliance.with.NACE.hardness.requirements
. . 3..Teon.or.seals.required.in.main.valve.or.temperatures.below.-20F..Consult.the.Factory.
. . 4..Teon.used.or.O-Ring.Seat.Seal.(Item.12).or.all.valves.with.900#,.1500#,.and.2500#.inlet.anges
Series 3800 Main ValveBill of Materials
Inconel is a registered trademark o Inco Alloys International, Inc.
Item No. Part Name Standard MaterialS7 NACEMR0175
S4 Complete316 St. St.
1 BodySA-216.Gr.WCB
Carbon.Steel
SA-216.Gr.WCB....
Carbon.Steel.(Note.2)
SA-351.Gr.CF8MSt.St
(316.St.St).2 Nozzle 316.St.St 316.St.St 316.St.St.....
3 Piston 316.St.St 316.St.St 316.St.St.....
4 Seat.Retainer 316.St.St 316.St.St 316.St.St.....
5 Guide./.Cover 316.St.St 316.St.St 316.St.St.....
Not.Shown Guide.(Note.1) 316.St.St 316.St.St 316.St.St.....
Not.Shown Cover.(Note.1)SA-216.Gr.WCB.
Carbon.Steel.SA-216.Gr.WCB
Carbon.Steel.(Note.2)SA-351.Gr.CF8M....................
St.St.....
Not.Shown Cover.Seal.(Note.1) Viton Ethylene.Propylene Viton.(Note.3)
6 Retainer..Screw 316.St.St 316.St.St 316.St.St.....
7 Preload.Spring 316.St.St Inconel.X750 316.St.St.....
8 Body.StudASTM.A193.Gr.B7.
Alloy.SteelASTM.A193.Gr.B7M..
Alloy.SteelASTM.A193.Gr.B8M.
St.St....
9 Hex.Nut.(Body)ASTM.A194.Gr.2H..
Alloy.SteelASTM.A194.Gr.2HM.
Alloy.SteelASTM.A194.Gr.8M.
St.St
10 Pressure.Pickup 316.St.St 316.St.St 316.St.St.....
11 Male.Elbow.(2) 316.St.St 316.St.St 316.St.St.....
12 Seat.Seal Viton Ethylene.Propylene Viton.(Note.3)
13 Nozzle.Seal Viton Ethylene.Propylene Viton.(Note.3).
14 Piston.Seal Viton Ethylene.Propylene Viton.(Note.3)
15 Guide.Seal Viton Ethylene.Propylene Viton.(Note.3).16 Tubing.. 316.St.St 316.St.St 316.St.St.....
17 Male.Connector.. 316.St.St 316.St.St 316.St.St.....
18 Pilot.Control 316.St.St316.St.St
(Inconel.X750.Spring).316.St.St.
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PCF3, HPCF3 & PCL Pilot Control Valves:Advantage Farris
Snap-Acting, Non-Flowing:.the.PCF3,.HPCF3.and.PCL.
pilot.control.valves.are.snap.acting.and.non-owing,.minimiz-
ing.the.ow.o.line.media.through.the.pilot.or.reduced.ugitive.
emissions.and.extended.valve.lie
Full 316 Stainless Steel Construction:.resists.corro-
sion.and.extends.the.lie.and.versatility.o.the.PCF3,.HPCF3..
and.PCL.valves
Adjustable Blowdown:.allows.setting.blowdown.between.
3%.and.7%.o.set.pressure.so.that.product.loss.is.minimized.
and.ugitive.emissions.reduced
Viton Seats and Seals:.these.corrosion-resistant.seals.
and.seats.enhance.valve.lie.Neoprene,.ethylene.propylene,.silicone,.and.Buna.N.sot.goods.are.optional.and.extend.tem-
perature.ranges.rom.-65F.to.450F.Kalrez .available.when.
maximum.resistance.to.chemical.attack.is.required.Contact.
actory.or.more.inormation
Set Pressures and Blowdown Set at Pilot Control
Valve:.in.line.service,.settings.and.blowdown.adjustments.
are.completed.quickly.and.easily.without.main.valve.intrusion.
Subsequent.reduction.in.product.loss.and.ugitive..
emissions.add.to.system.proftability
Field Test Capable:.the.use.o.a.feld.test..
connection.allows.cycling.the.pilot.valve.without..
interrupting.system.protection.or.removing.the.valve.rom.the.
line.Field.testing.verifes.system.integrity.in.accordance.with.
the.requirements.o.the.Code
Remote Sensing Capable:.the.pilot.sensing.line.can.be.
installed.directly.into.the.pressure.vessel.when.the.main.valve.
is.placed.in.the.most.ergonomic.location.The.relie.valve,.while.
remote.rom.the.vessel,.operates.on.actual.system.pressure.
regardless.o.inlet.piping.losses
Convertible to NACE Service:.with.the.high.quality.
o.construction.materials,.conversion.or.NACE.Service.to.
MR0175.is.simple
Kalrez is a registered trademark o DuPont Dow Elastomers
Built.in.conormance.to.ASME.Code.Section.VIII.or.Air,.Gas,.Vapor,.and.Liquid.Service*
*.ASME.Code.stamping.not.*.available.on.ull.port..*......*.design.in.liquid.service
3
18
14
16
12
2
13
17
10
1
19
21
26
27
25
22
23
20
15
11
8
7
6
4
9
5
24
29
28
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Series 3800 Pilot Control ValveBill of Materials
General Notes:1.For.NACE.Service.(S7.Trim),.substitute.ethylene.propylene
Item No. Part Name Standard Material
1 Body SA-479,..316.St.St
2 Bonnet SA-479,..316.St.St....
3 Cap 316.St.St....
4 Spring.Adjusting.Screw 316.St.St....
5 Upper.Spring.Button 316.St.St....
6Spring.-.Standard 316.St.St
Spring.-.NACE Inconel.X750.....
7 Lower.Spring.Button 316.St.St...
8 Disc 316.St.St..
9 Jam.Nut 18-8.St
10 Guide 316.St.St
11 Upper.Seat.Seal Viton.(Note.1)
12 Upper.Seat 316.St.St..
13 Static.Seal,.Body Viton.(Note.1)
14 Blowdown.Relay 316.St.St
15 Lower.Seat 316.St.St
16 Retainer,.Lower.Seat.Seal 316.St.St
17 Lower.Seat.Seal. Viton.(Note.1)
18 Static.Seal,.Adjuster Viton.(Note.1)
19 Blowdown.Adjuster A479,..316.St.St
20 Static.Seal,.Filter Viton.(Note.1)
21 Filter 300.Series.St.St22 Filter.Housing 316.St.St
23 Poppet 316.St.St
24 Adjuster.Cap.Seal Viton.(Note.1)
25 Blowdown.Adjuster.Cap 316.St.St
26 Thread.Seal Teon
27 Blowdown.Adjuster.Lock.Nut 18-8.St.St
28 Bug.Vent.Housing Commercial.Grade
29 Wire.Seal St.St.Wire/Lead.Seal
30 Nameplate.(Not.Shown) Stainless.Steel
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Selection Table:API Nozzle Design
Orifce
Valve SizeInlet x Outlet
ANSIFlange Class
Type Number
MaximumSet Pressure, psig Maximum
Back Pressurepsig at 100 FLetter
APIArea
Sq. In.
ActualArea
Sq. In.Inlet
RF or RJOutlet
RF-20 F100 F
500 F(Note 1)
D 0110 0150
1.x.2
150#
300#600#
150#
38DC10-120
38DC12-12038DC13-120
285
7401480
170.....
6001200
285
900#1500#2500#
300#38DC14-12038DC15-12038DC16-120
222037056170
179529954990
........740.....
........
1.1/2.x.2
150#300#600#
150#38DC10X-12038DC12X-12038DC13X-120
285740
1480
170.....600
1200....285.....
900#1500#2500#
300#38DC14X-12038DC15X-12038DC16X-120
222037056170
179529954990....
740.....
E 0196 0225
1.x.2
150#300#600#
150#38EC10-12038EC12-12038EC13-120
285740
1480
170.....600
1200.285
900#
1500#2500#
300#
38EC14-120
38EC15-12038EC16-120
2220
37056170
1795
29954990
........
740.............
1.1/2.x.2
150#300#600#
150#38EC10X-12038EC12X-12038EC13X-120
285740
1480
170.....600
1200....285.....
900#1500#2500#
300#38EC14X-12038EC15X-12038EC16X-120
222037056170
179529954990....
740.....
F 0307 0371
1.x.2
150#300#600#
150#38FC10-12038FC12-12038FC13-120
285740
1480
170.....600
1200285
900#1500#2500#
300#38FC14-12038FC15-12038FC16-120
222037056170
179529954990
........740.....
........
1.1/2.x.2
150#300#600#
150#38FC10X-12038FC12X-12038FC13X-120
285740
1480
170.....600
1200....285.....
900#1500#2500#
300#38FC14X-12038FC15X-12038FC16X-120
222037056170
179529954990
........740.....
........
G 0503 0559
1.1/2.x.3
150#300#600#
150#38GC10-12038GC12-12038GC13-120
285740
1480
170.....600
1200.............285.....
900#1500#2500#
300#38GC14-12038GC15-12038GC16-120
222037056170
179529954990
........740.....
........
2.x.3
150#300#600#
150#38GC10X-12038GC12X-12038GC13X-120
285740
1480
170.....600
1200....285.....
900#1500#2500#
300#/600#(Note.2)
38GC14X-12038GC15X-12038GC16X-120
222037056170
179529954990
1480.....
H 0785 0873
1.1/2.x.3
150#300#600#
150#38HC10-120.38HC12-12038HC13-120
285.740
1480
170.600.
1200............286
900#1500#2500#
300#38HC14-12038HC15-12038HC16-120
222037056170
179529954990
........740.....
........
2.x.3
150#300#600#
150#38HC10X-12038HC12X-12038HC13X-120
285740
1480
170.....600
1200....285.....
900#1500#2500#
300#/600#(Note.2)
38HC14X-12038HC15X-12038HC16X-120
222037056170
179529954990
........1480.............
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Selection Table:API Nozzle Design
Orifce
Valve SizeInlet x Outlet
ANSIFlange Class
Type Number
MaximumSet Pressure, psig Maximum
Back Pressurepsig at 100 FLetter
APIArea
Sq. In.
ActualArea
Sq. In.Inlet
RF or RJOutlet
RF-20 F100 F
500 F(Note 1)
J 1287 1430
2.x.3
150#
300#600#
150#
38JC10-120
38JC12-12038JC13-120
285
7401480
170.....
600.....1200
285.............
900#1500#2500#
300#/600#(Note.2)
38JC14-12038JC15-12038JC16-120
222037056170
17952995.....4990............
........1480
3.x.4
150#300#600#
150#38JC10X-12038JC12X-12038JC13X-120
285740
1480
170.....600
1200....285.....
900#1500#
300#38JC14X-12038JC15X-120
22203705
17952995
740.............
K 1838 2042 3.x.4
150#300#600#
150#38KC10-12038KC12-12038KC13-120
285740
1480
170.....600....
1200.....285.....
900#
1500# 300#
38KC14-120
38KC15-120
2220
3705
1795
2995
740.....
........
L 2853 3170
3.x.4
150#300#600#
150#38LC10-12038LC12-12038LC13-120
285740
1480
170.....600
1200
285.............
900#1500#
300#38LC14-12038LC15-120
22203705
17952995
740.............
4.x.6150#300#600#
150#38LC10X-12038LC12X-12038LC13X-120
285740
1480
170.....600
1200....285.....
M 360 4000 4.x.6150#300#600#
150#38MC10-12038MC12-12038MC13-120
285740
1480
170.....600
1200....285.....
N 434 4822 4.x.6150#300#
600#
150#38NC10-12038NC12-120
38NC13-120
285740
1480
170.....600
1200....
285.....
P 638 7087 4.x.6150#300#600#
150#38PC10-12038PC12-12038PC13-120
285740
1480
170.....600
1200....285.....
Q 1105 1227 6.x.8150#300#600#
150#38QC10-12038QC12-12038QC13-120
285740
1480
170.....600
1200.285
R 160 1778 6.x.8150#300#600#
150#38RC10-12038RC12-12038RC13-120
285740
1480
170.....600
1200....285.....
T 260 2894 8.x.10..150#300#600#
150#38TC10-12038TC12-12038TC13-120
285740
1480
170.....600
1200285.....
General Notes:. 1 ..Standard.elastomer.is.Viton.which.is.suitable.to.a.maximum.temperature.o.450F ..For. temperatures.above.450F, .the.O-Ring.. . . .Note1.:..Seals.must.be.specifed.as.Kalrez.Consult.the.Factory
. 2..The.300#.and.600#.anges.have.identical.drilling.with.ange.thickness.equal.to.the.600#.class.
. 3..For.liquid.service.applications,.add.L.to.the.type.number.or.valves.with.standard.size.connections.and.Y.or.valves. .
. Notwith.oversize.connections.Example:.38FC10L-120.and.38FC10Y-120
. 4..Valves.with.ring.joint.inlet.connections.available.on.application.only.Consult.the.Factory
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Selection Table:Full Port Design
General Notes:
. 1.Standard.elastomer.is.Viton.which.is.suitable.to.a.maximum.tempera-.
. . ture.o.450F..For.temperatures.above.450F,.the.O-Ring.Seals.must..
. . be.specifed.as.Kalrez.Consult.the.Factory
. 2.The.300#.and.600#.anges.have.identical.drilling.with.ange..
. . thickness.equal.to.the.600#.class..
. 3.Full.port.design.suitable.or.use.on.air,.gas,.and.vapor.services.only.
Selection Table: Dual Port Design
4..A.1.X.2.valve.is.available.with.an.A.orifce.(0719.sq.in).provided... remote.sensing.is.specifed
5..Valves.with.ring.joint.inlet.connections.available.on.application.only.Consult... the.Factory.
6..For.dual.outlet.API.Orifce.types,.liquid.service.valves.are.designated.by... changing.the.seventh.digit.rom.D.to.E.The.ull.bore.design.is.not... availble.or.use.on.liquid.service.
OrifceValve Size
Inlet x Outlet
ANSIFlange Class
Type Number
MaximumSet Pressure, psig Maximum
Back Pressurepsig at 100 FLetter
Actual AreaSq. In.
InletRF or RJ
OutletRF
-20 F100 F
500 F(Note 1)
1 1767
1.1/2.x.2
150#300#
600#
150#381C10-120381C12-120
381C13-120
285.740
1480
170.....600
1200
285.....
900#1500#2500#
300#381C14-120381C15-120381C16-120
222037056170
179529954990
740
1.1/2.x.3
150#300#600#
150#381C10X-120381C12X-120381C13X-120
285740
1480
170.....600
1200....285
900#1500#2500#
300#381C14X-120381C15X-120381C16X-120
222037056170
17952995....4990....
....740.
2 2953 2.x.3
150#300#600#
150#382C10-120382C12-120382C13-120
285740
1480
170.....600
1200....285.....
900#1500#2500#
300#/600#(Note.2)
382C14-120382C15-120382C16-120
222037056170
1795.....29954990....
1480
3 6605 3.x.4
150#300#600#
150#383C10-120383C12-120383C13-120
285740
1480
170.....600
1200....285.....
900#1500#
300#383C14-120383C15-120
22203705
17952995....
740.....
4 1150 4.x.6150#300#600#
150#384C10-120384C12-120384C13-120
285740
1480
170.....600
1200....285.....
6 2607 6.x.8150#300#600#
150#386C10-120386C12-120386C13-120
285740
1480
170.....600
1200....285.....
8 4566 8.x.10..150#300#600#
150#388C10-120388C12-120388C13-120
285740
1480
170.....600
1200.285.....
OrifceValve Size
Inlet x Outlet
ANSIFlange Class
Type Number
MaximumSet Pressure, psig Maximum
Back Pressurepsig at 100 FLetter
API AreaSq. In.
Actual AreaSq. In.
InletRF or RJ
OutletRF
-20 F100 F
500 F(Note 1)
Q 1105 1227 6.x.8.x.8150#300#600#
150#38QC10D-12038QC12D-12038QC13D-120
285.740
1480
170.....600
1200285.....
R 160 1778 6.x.8.x.8150#300#600#
300#38RC10D-12038RC12D-12038RC13D-120
285.740
1480
170.....600
1200285
T 260 2894 8.x.10.x.10150#300#
600#
150#38TC10D-12038TC12D-120
38TC13D-120
285740
1480
170.....600
1200....
285
#6 2607 6.x.8.x.8150#300#600#
300#386C10D-120386C12D-120386C13D-120
285.740
1480
170.....600
1200....
....285
#8 4566 8.x.10.x.10150#300#600#
150#388C10D-120388C12D-120388C13D-120
285740
1480
170.....600
1200...285
-
7/30/2019 Pressure Releif Valve
11/2411
...Air Capacities:API Nozzle, 10% Overpressure
General Notes:....1..Capacities.at.30.psig.and.below.are.based.on.3.psi.overpressure
ASME.PRESSURE.VESSEL.CODE.(UV).CAPACITIES.IN.STANDARD.CUBIC.FEET.PER.MINUTE.AT.60F.
SetPressure
(psig)
Orifce Area, Sq. Inches
D E F G H J K L M N P Q R T
0.110 0.196 0.307 0.503 0.785 1.287 1.838 2.853 3.60 4.34 6.38 11.05 16.0 26.0
152030
4050
7789
112
138164
115133168
207246
191220278
342407
287331419
516613
449518655
806958
736848
1074
13211569
105112121533
18872241
163218812380
29303479
205923743004
36974390
2482.2862.3621.
4457.5292.
36494207.5323.
6550.7778.
.63177283.9215.
1134113466.
.9155.10554.13354.
.16434.19513.
14901.17179.21736.
26749.31762.
60708090
100
190216242268294
285324363402441
471535599664728
710807903
10001097
11091260141115621714
18172064231225602807
25942948330236554009
40284577512656756224
50825775646871617854
6127.69627797.8633.9468.
9005..10233.11460.12688.13915.
15591.17717.19842.2196724092.
22593.25673.28752..3183234912.
36774.41787.46800..51812.56825.
150200250300350
424554684814944
636831
102612211416
10491371169220132335
15812065254930343518
24703226398247385494
40465284652377619000
577875469315
1108312851
896911715144601720519951
1131814782182462171125175
13644.17820.21996.26172.30348.
20053.26191.32328.38466.44604.
34719.4534555972.66598.77225.
50310..65708.81107.96505.
111903.
81889.106952.132015.157079.182142.
400450500550
600
1073120313331463
1593
1610180520002195
2390
2656297732983620
3941
4002448649705454
5938
6250700677628518
9274
10238114771271513953
15192
14620163881815719925
21694
22696254422818730932
33678
28639321033556739032
42496
34524.38700.42876.47053.
51229
50741.56879.63017.69154.
.75292.
87851.98477.
109104.119730.
130357.
127302.142700.158098.173497.
188895.
207206.232269.257333.282396.
307459.650700750800850
17231853198321132243
25852780297431693364
42624584490552265548
64226907739178758359
1003010786115421229913055
1643017669189072014621384
2346225231269992876830536
3642339168419144465947405
4596049424528885635259817
5540559581.63757.6793372109.
.81430.87567.93705..99843.105981.
140983.151609.162236.172862.183489.
204293.219692.235090.250488.265887.
332523.357586.382650.407713.432777.
900950
100010501100
23732502263227622892
35593754394941444339
58696190651168337154
884393279811
1029510780
1381114567153231607916835
2262323861250992633827576
3230534073358423761039379
5015052895556415838661131
6328166745702097367377138
7628580461.84637.88813.92989.
112118.118256124394.130531.136669.
194115204741.215368.225994.236621.
281285.296683.312082.327480.342878.
457840.482903.507967.533030.558094.
11501200125013001350
30223152328234123542
45334728492351185313
74757797811884398761
1126411748122321271613200
1759118347191031985920615
2881530053312923253033769
4114742915446844645248221
6387766622693687211374858
8060284066875309099494459
97166.101342.105518.109694113870.
142807.148944.155082.161220.167357.
247247.257873.268500.279126.289753
358277.373675.389073.404472.419870.
583157.608221.633284.658348.683411.
14001450150015501600
36723802393140614191
55085703589760926287
908294039724
1004610367
1368414168146531513715621
2137122127228832363924395
3500736246374843872239961
4998951758535265529557063
7760480349830948584088585
97923101387.
118046.122222..........
173495.179633.......
300379.311006.......
435268.450667......
708474.733538....
16501700175018001850
43214451458147114841
64826677687270677261
1068811010113311165211974
1610516589170731755718041
2515225908266642742028176
4119942438436764491546153
5883260600623696413765906
91331940769682199567
102312
...
...
...
...
...
........
............
..........
.....
19002000210022002300
49715231549057506010
74567846823686259015
1229512938135801422314865
1852519494204622143022398
2893230444319563346834980
4739249868523455482257299
6767471211747487828581822
105057110548116039121530127020
...
...
...
...
...
.........
...........
..........
.....
2400
2500260027002800
6270
6530678970497309
9405
9795101841057410964
15508
16151167931743618078
23367
24335253032627127240
36492
38005395174102942541
59776
62253647306720769684
85359
88896924339597099506
132511
138002143493148983154474
...
......
...
...
..
........
..
........
..
........
.
....
29003000350040004500
756978299128
1042711726
1135411743136921564017589
1872119364225772579029003
2820829176340173885943700
4405345565531266068668247
72161746378702299406
111791.
103043.106580.124265.141950.
159965165456192909220363.
...
...
...
...
...
..........
..........
..........
.....
5000550060006170
13025143241562316065
19538214862343524097
32216354293864239734
48541533825822359869
75808833689092993499
124175.136560.148944.153155.
.
.
.
.
...
...
...
...
......
........
......
....
-
7/30/2019 Pressure Releif Valve
12/2412
Air Capacities:Full Port, 10% Overpressure
General Notes:....1..Capacities.at.30.psig.and.below.are.based.on.3.psi.overpressure
ASME.PRESSURE.VESSEL.CODE.(UV).CAPACITIES.IN.STANDARD.CUBIC.FEET.PER.MINUTE.AT.60F.
SetPressure
(psig)
Orifce Area, Sq. Inches
A #1 #2 #3 #4 #6 #8
0.719 1.767 2.953 6.605 11.50 26.07 45.66
152030
4050
345398503
619735
848978
1237
15221808
141716342068
25453022
317136564626
56926759
552163658054
991111769
125171443118259
2246926680
21923...25275...31979...
39354...46729...
60708090
100
851968
108412001316
20932379266429493235
34993976445249295406
782688939960
1102612093
1362615484173411919821056
3089135101393124352347733
54103...61478...68853...76228...83602...
150200250300350
18972477305836394219
4662608975168943
10370
779110176125611494517330
1742722761280953342938763
3034339630489175820467491
6878789840
110894..131947..153000..
120476..157350..194224..231097..267971..
400450500550
600
4800538059616542
7122
11797132241465116078
17505
19715221002448426869
29254
44097494315476560099
65433
767788606595352
104640..
113927..
174054..195107..216161..237214..
258267..
304845..341719..378592..415466..
452340..650700750800850
7703828488649445
10026
1893220359217862321324640
3163934024364083879341178
7076776101814358676992103
123214..132501..141788..151075..160362..
279321..300374..321428..342481..363534..
489214..526087..562961..599835..636709..
900950
100010501100
1060611187117681234812929
2606727494289203034731774
4356345947483325071753102
97437102771..108105..113439..118773..
169649..178936..188223..197510..206797..
384588..405641..426695..447748..468801..
673582..710456..747330..784204..821077..
11501200125013001350
1351014090146711525115832
3320134628360553748238909
5548657871602566264165025
124107..129441..134775..140110..145444..
216085..225372..234659..243946..253233..
489855..510908..531962..553015..574069..
857951..894825..931699..968572..
1005446.
14001450150015501600
1641316993175741815518735
4033641763431904461746044
6741069795721807456476949
150778..156112..161446166780172114
262520..271807..
595122..616175..
1042320.1079194.
.........
16501700175018001850
1931619897204772105821639
4747148898503255175253179
7933481719841048648888873
177448182782188116193450198784
...............
19002000210022002300
2221923380245422570326864
5460657460603146316866022
9125896027
100797..105566..110336..
204118214786225454236122246790
...............
2400
2500260027002800
28026
29187303483150932671
68876
71730745847743880292
115105..
119875..124644..129414..134183..
257458
268126278794289462300130
...
............
29003000350040004500
3383234993408004660652413
8314686000
100269..114539..128809..
138953..143723..167570..191418215265
310798321466374806
...............
5000550060006170
58219640266983271806
143079..157349..171619..176470..
239113262961286808294916
...........
-
7/30/2019 Pressure Releif Valve
13/2413
Natural Gas Capacities:API Nozzle
General Notes: . 1..Minimum.set.pressure.or.1.x.2.size.valves.in.any.orifce.is.20.psig... 2 ..Capacities.based.on.a.specifc.gravity.o.065.at.a. temperature.o.60F. 3..Capaciti es.at.30.psig.and.below.are.based.on.3.psi.overpressure..
ASME.PRESSURE.VESSEL.CODE.(UV).CAPACITIES.IN.STANDARD.CUBIC.FEET.PER.MINUTE.AT.60F.
SetPressure
(psig)
Orifce Area, Sq. Inches
D E F G H J K L M N P Q R T
0.110 0.196 0.307 0.503 0.785 1.287 1.838 2.853 3.60 4.34 6.38 11.05 16.0 26.0
152030
4050
93107135
167198
139161203
250297
230265336
413491
347400506
623740
542625791
9731155
88810241295
15941893
126814621850
22772703
196922702872
35354197
248428643624
44605296
299534534369
5377.6385.
.4402.
.5075.
.6422.
7903.9384.
7622.8788.
11119.
13683.16247.
11045.12734.16112.
19827.23543.
17978.20727.26225.
32273.38320.
60708090
100
229261292324355
344391438486533
568646723801878
857973
109012071324
13381520170318852068
21922491279030883387
31303557398444104837
48605522618468477509
61326968780486409476
7392.8400.9408.
10415.11423.
10865.12346.13827.15308.16789.
18811.21375.23939.26503.29068.
27259.30974.34690.38405.42121.
44368.50416.56464.62512.68559.
150200250300350
512668825982
1139
7681003123814731708
12661654204124292817
19082492307636604244
29803892480457166629
4881637678709364
10858
69719104
112381337215505
1082214134174462075824071
1365517835220142619430373
1646121500.26538.31577.36615.
.24194.31599.39004.46409.53814.
41888.54709.67530.80350.93171.
60699.79277.97855.
116433.135011
98798.129037.159276.189515..219754.
400450500550
600
1295145216091765
1922
1943217824132648
2884
3204359239804367
4755
4828541259976581
7165
754184539365
10277
11190
12352138471534116835
18329
17639197732190624040
26174
27383306953400837320
40632
34553387324291247091
51271
41654.46692.5173056769.
61807.
61219.68625..76030.83435.
90840.
105992.118813.131633.144454.
157275.
153589.172167.190745.209323.
227901.
249993.280232.310471.340710.
370949.650700750800850
20792236239225492706
31193354358938244059
51435530591863066693
7749833389179501
10085
1210213014139261483815750
1982321317228122430625800
2830730441325753470836842
4394447257505695388157194
5545159630638106798972169
66846.71884.76923.81961.86999
98245.105650.113055.120460.127865.
170096.182916.195737.208558.221378.
246479.265057.283635.302213.320791.
401188.431427.461666.491905.522143.
900950
100010501100
28633019317633333490
42944529476449995235
70817468785682448631
1066911253118371242213006
1666317575184871939920311
2729428788302833177733271
3897641109432434537647510
6050663818671307044373755
7634880528847078888793066
92038.97076.
102115.107153.112192.
135270.142675.150081.157486.164891.
234199.247020.259841.272661.285482.
339370.357948.376526.395104.413682.
552382.582621.612860.643099.673338.
11501200125013001350
36463803396041164273
54705705594061756410
901994079794
1018210570
1359014174147581534215926
2122422136230482396024872
3476536259377533924840742
4964451777539115604558178
7706780380836928700490316
97246101425.105605.109784.113964.
117230.122268.127307.132345.137384.
172296.179701.187106.194511.201916.
298303.311124.323944.336765.349586.
432260.450838.469416.487994.506572.
703577.733816.764055.794294.824533.
14001450150015501600
44304587474349005057
66456880711573507585
1095711345117331212012508
1651017094176781826218846
2578426697276092852129433
4223643730452244671948213
6031262446645796671368847
9362996941
100253103566106878
118144.122323.
142422.147461.
......
209321.216726.
.....
362406.375227.
......
525150.543728.
....
854772.885011.
...
16501700175018001850
52145370552756845840
78218056829185268761
1289613283136711405914446
1943120015205992118321767
3034531258321703308233994
4970751201526955418955684
7098073114752487738179515
110190113502116815120127123439
......
........
......
.........
.....
19002000210022002300
59976311662469387251
899694669936
1040710877
1483415609163841716017935
2235123519246872585627024
3490636731385554037942204
5717860166631556614369131
8164985916901839445098718
126751133376140001146625153250
..........
.........
.......
.......
.....
2400
2500260027002800
7565
7878819185058818
11347
11817122871275813228
18710
19486202612103621812
28192
29360305283169632865
44028
45852476774950151326
72120
75108780968108584073
102985.
107252.111520.115787.120054.
159874
166499173123179748186373
..
.......
..
........
.......
..
........
.
....
29003000350040004500
91329445
110131258014147
1369814168165191887021221
2258723362272393111534992
3403335201410424688352724
5315054974640967321882340
8706290050
104992.119934.134875.
124322.128589.149925.171262.
192997199622232745265867.
.........
..........
..........
..........
.....
5000550060006170
15715172821884919382
23572259232827429074
38868427454662147939
58565644067024672232
91462100583.109705.112807.
149817.164759.179701.184781.
.
.
.
.
......
.....
...
..
..
...
.......
....
-
7/30/2019 Pressure Releif Valve
14/2414
General Notes: . 1..Minimum.set.pressure.or.1.x.2.size.valves.in.any.orifce.is.20.psig... 2 ..Capacities.based.on.a.specifc.gravity.o.065.at.a. temperature.o.60F. 3..Capacit ies.at.30.psig.and.below.are.base d.on.3.psi.overpressure..
Natural Gas Capacities:Full Port
SetPressure
(psig)
Orifce Area, Sq. Inches
A #1 #2 #3 #4 #6 #8
0.719 1.767 2.953 6.605 11.50 26.07 45.66
152030
4050
416480607
747887
102311801493
18372181
171019722495
30703646
382644115581
68688155
666176809717
1195814199
151011741122029
2710932189
26450...30494...38583...
47480...56378...
60708090
100
10271168130814481588
25262870321435593903
42214797537259476523
944210729120161330314590
1644018681209222316325404
3726942350474305251057590
65276...74173...83071...91968...
100866..
150200250300350
22882989368943905091
562573469068
1079012511
940012277151551803220909
2102627461338974033246768
3660947814590187022381428
82991108392..133793.159194..184594..
145354..189842...234330..278818..323306..
400450500550
600
5791649271927893
8593
14233159541767619398
21119
23786266632954132418
35295
53203596396607472510
78945
92633103838..115043..126247..
137452..
209995..235396.260797..286198..
311599..
367794...412282..456770..501258..
545746..650700750800850
92949994
106951139512096
2284124563262842800629728
3817241049439274680449681
853819181698252
104687.111122..
148657..159862..171067...182271..193476..
337000..362400..387801..413202..438603..
590234..........634723..........679211..723699..768187..
900950
100010501100
1279713497141981489815599
3144933171348933661438336
5255855435583136119064067
117558.123993..130429..136864..143300..
.204681..215886..227091..238296..249500..
464004.489405.514806.540206..565607..
.812675..
.857163..
.901651..946139..990627..
11501200125013001350
1629917000177001840119101
4005841779435014522246944
6694469821726997557678453
149735..156171..162606..169042..175477..
260705..271910..283115..294320..305525..
591008..616409..641810..667211..692612..
1035115.1079603.1124091.1168579.1213067.
14001450150015501600
1980220503212032190422604
4866650387521095383155552
8133084207870858996292839
181913..188348..194784201219207655
316729..327934..
718012..743413..
1257555.1302043.
.........
16501700175018001850
2330524005247062540626107
5727458996607176243964161
9571698593
101471.104348..107225..
214090220525.226961233396239832
...............
19002000210022002300
2680728209296103101132412
6588269325727697621279655
110102..115857.121611.127366..133120..
246267.259138.272009284880297751
...............
2400
2500260027002800
33813
35214366153801639417
83099
86542899859342996872
138874.
144629..150383.156138..161892..
.310622
323493.336364349235362106
...
............
29003000350040004500
4081842219492255623063236
100315..103758..120975..138191..155408..
167646..173401..202173..230945..259717...
374977387848452202516557
...............
5000550060006170
70241772478425286634
172624..189841..207057..212911..
288489...317261...346033...355816...
............
-
7/30/2019 Pressure Releif Valve
15/2415
General Notes:....1..Capacities.at.30.psig.and.below.are.based.on.3.psi.overpressure
Water Capacities:API Nozzle, 10% Overpressure
ASME.PRESSURE.VESSEL.CODE.(UV)..CAPACITIES.IN.US.GALLONS.PER.MINUTE.AT.70F
SetPressure
(psig)
Orifce Area, Sq. Inches
D E F G H J K L M N P Q R T
0.110 0.196 0.307 0.503 0.785 1.287 1.838 2.853 3.60 4.34 6.38 11.05 16.0 26.0
152030
4050
189213256
295330
283320384
443495
467528633
731817
704796954
110123
110124149
172192
180203244
281315
257291348
402450
399451541
624698
.504
.570
.682
.788
.881
.607.
.687.
.823.
.950..1062.
.893..1009..1209.
.1396.
.1561.
.1546.
.1748.
.2094.
.2418.
.2703.
2241.2533.3035.
3504.3918.
3648.4124.4940.
5704.6377.
60708090
100
362391418443467
543586627665701
895967103109115
134145155165174
210227243258272
345372398422445
492532569603636
765826883937987
.965.1042.1115.1182.1246
.1164.
.1257.
.1344.
.1425.
.1502.
.1710.
.1847.
.1975.
.2095.
.2208.
.2962.
.3199.
.3420.
.3627.
.3824.
4292.4636.4956.5256.5541.
6986.7546.8067.8556.9019.
150200250300350
572661739809874
858991110121131
141163182200216
213246275301325
333384430471509
545630704771833
779900
100611021190
12091397156217111848
.1526
.1762
.1971
.2159
.2332
.1840.
.2125.
.2376.
.2602.
.2811.
.2705.
.3123.
.3492.
.3825.
.4132.
.4683.
.5407.
.6046.
.6623.
.7154.
6786.7836.8761.9597.
10366.
11046.12755.14260.15621.16873.
400450500550
600
934991104109
114
140148156164
171
231245258271
283
348369389408
426
544577608638
666
891945996
1045
1091
1272135014231492
1558
1975209522092316
2419
.2493
.2644
.2787
.2923
.3053
.3005.
.3187.
.3360.
.3524.
.3681.
.4417.
.4685.
.4938.
.5179
.5410.
.7648.
.8111.
.8550.
.8968.
.9366.
1108211754.12390.12995.
13573.
.18038.19132.20167.21152.
22092.650700750800850
119123128132136
178185192198204
294305316327337
444460477492507
693719745769793
11361179122012601299
16221683174218001855
25182613270527942880
.3178
.3298
.3414
.3525
.3634
.3831.
.3976.
.4115.
.4250.
.4381.
.5631
.5843.
.6048.
.6247.
.6439.
.9749..10117..10472..10815..11148.
14127.14660.15175.15672.16155.
22994.23862.24700.25510.26295.
900950
100010501100
140144147151155
210216221227232
346356365374383
522536550564577
816838860881902
13361373140914441478
19091961201220622110
29633045312432013276
.3739
.3842
.3942
.4039
.4134
.4508
.4631
.4752.
.4869
.4984.
.6626.
.6807.
.6984.
.7156.
.7325.
.11472.
.11786.
.12092.
.12391.
.12682.
16623.17079.17522.17955.18378.
27057.27799.28521.29225.29913.
11501200125013001350
158161165168171
237242247252257
392400408416424
590603615628640
922942961980999
15111543157516061637
21582204225022942338
33503422349235623629
.4227
.4318
.4407
.4494
.4580
.5096.
.5205.
.5313.
.5418
.5521.
.7490.
.7651.
.7808.
.7963.
.8115.
.12967.
.13246.
.13519.
.13787.
.14050.
18791.19195.19591.19979.20359.
30585.31243.31887.32519.33138.
14001450150015501600
174178181184186
262267271276280
432440447455462
651663674685696
10181036105310711088
16671697172617541782
23812423246425052545
36963761382638893951
.4664
.4746
.
.
.
.5622.
.5722.
...
..
...
.8264.
.8410.
.
..
...
.14308.
.14561..........
20733.21100.....
33747.34344....
16501700175018001850
189192195198201
284289293297301
469476483490497
707718728739749
11051121113811541170
18101837186418901916
25852623266227002737
40134073413241914249
.
.
.
.
.
...
..
...
...
...
...
..
..
...
..
..
..
..
...
...
.........
.....
19002000210022002300
203209214219224
305313321328336
503517529542554
759779798817835
11851216124612761304
19421993204220902137
27732846291629843052
43064418452746334738
.
.
.
.
.
...
...
...
...
...
..
..
...
..
...
...
...
..
..
...
.......
.......
2400
2500260027002800
229
233238242247
343
350357364371
566
578589600611
853
871888905921
1332
1360138714131439
2183
2228227223152358
3117
3181324533063367
4839
4939503751335227
.
..
.
.
.
......
..
...
..
......
...
..
..
.....
...
...
.
...
..
....
..
..
29003000350040004500
251256276295313
377384414443470
622633684731775
938954
103011011168
14651490160917201825
23992441263628182989
3427348537644024.
5320541158446248.
.
.
.
.
.
..
..
...
..
..
...
...
..
..
...
..
..
...
...
..
........
..
..
..
..
..
5000550060006170
330346362367
495520543550
817857895908
1231129213491368
1923201721072137
3151330534523500
.
.
.
.
.
.
.
.
.
.
.
.
..
..
..
...
...
...
...
...
...
..
...
..
.......
..
..
..
..
-
7/30/2019 Pressure Releif Valve
16/2416
1Temperatures & Materials
Designation
....Numbering System
CConstructionC..Elastomer.O-Ring..Seat.Seal
T .Teon.O-Ring*..Seat.&.Seals(Main.Valve.Only)
*For.cryogenic..*applications.to..
*-450.F,.add.S4.to..*the.type.number.*Consult.the.Factory
DOrifce AreaDesignation API Actual
& Orifce Orifce Area Orifce AreaLetter Sq. In. Sq. In.
. D. 0110. 0150
. E. 0196. 0225
. F. 0307. 0371
. G. 0503. 0559
. H. 0785. 0873
. J. 1287. 1430
. K. 1838. 2042
. L. 2853. 3170
. M. 360. 4000
. N. 434. 4822
. P. 638. 7087
. Q. 1105. 1227
. R. 1600. 1778
. T. 2600. 2894
. A. . 0719
. 1. . 1767
. 2. . 2953
. 3. . 6605
. 4. . 1150
. 6. . 2607
. 8. . 4566
38SeriesNumber38
To.simpliy.the.selection.and.speciying.o.Farris.pressure.relie.valves,.use.the.ollowing.type.numbering.system.The.type.number-ing.system.is.ideal.as.the.digits.which.comprise.a.specifc.type.number.have.a.distinct.signifcance.The.digits.describe.the.basic.valve.series,.orifce,.seat.and.internal.construction,.inlet.temperature.range,.body,.and.spring.material,.inlet.ange.class.as.well.as.Code.liquid.design
Ordering InformationTo.properly.process.your.order.and.avoid.delay.please.speciy.the.ollowing:
11.Backpressure,.Superimposed.Constant.and/or.Variable..
and.Built-up*
12.Required.Capacity*13.Physical.Properties.o.Fluid.(Molecular.Wt,.Specifc.Gravity,.
etc)
14.Accessories.
a).Manual.or.Remote.Blowdown.
b).Field.Test.Connection.
c).Reverse.Flow.Preventer.
d).Auxiliary.Filters
15.Code.Requirements,.i.any
1.Quantity
2.Inlet.and.Outlet.Size
3.Farris.Type.Number*4.Inlet.and.Outlet.Flange.Class.and.Facing
5.Materials.o.Construction,.i.other.than.Standard
6.O-Ring.Seal.Material.(Viton.is.Standard)
7.Set.Pressure*
8.Maximum.Inlet.Temperature*
9.Allowable.Overpressure*
10.Fluid.and.Fluid.State*
*.As.a.customer.service.we.veriy.your.selection.and.sizing.I.this.service.is.desired,.you.must.include.this.inormation
Note:.I.valve.modifcation.or.set.pressure.changes.are.required,.consideration.must.be.given.to.correct.the.nameplate.and.other.data
Inlet Material
Temperature BodyRange F & Cover Sprin
. 1. -20.to.450. Carbon.. . Stainle
. . . Steel. . Stee
. 1. -20.to.-450. Consult. . .Cons
. . . Factory. . Facto
-
7/30/2019 Pressure Releif Valve
17/2417
0OptionsNo.Options.0
Dual.Pilot.Controls.2
Auxiliary.Filter.3
Manual..Depressurizing.4
Field.Test..Connections.5
Automatic..
Reverse.Flow..Preventer.6
Pressure.Spike..Snubbers.7
RemoteDepressurizing.8
Four.Auxiliary..Functions*.9
Speciy.Combination..o.Options.Following..Complete.Type..Number.C
Remote..
Sensing. R
2PilotControlSnap.Acting..Pilot.Control.2
Modulating..Pilot.Control. M
2Inlet Class
ANSINominal InletFlange Class
0. 150
2. 300
3. 600
4. 900
5. 15006. 2500
Designation
XSpecialConstruction(I.applicable)
L-Liquid.Service..(Standard..Connections)
X-Air.&..Vapor.Service..(Oversize..Connections)
Y-Liquid.Service..
(Oversize.Con-nections)
D-Air.&.Vapor.Service.(Dual.Outlet)1
E-Liquid.Service..(Dual.Outlet)1
1. Available on 6.and 8.inlet sizevalves only.
1Inlet FacingSpecial.0
Raised.Face,..ANSI.Std..(125.to..160.AARH)..1
Ring.Joint..ANSI.Std..(Octagonal).9
63.AARH..
Smooth..Finish.RF. H
Although.not..applicable.to.the.inlet.acing.only,..the.ollowing.frst.digit.letters.are..also.used:
63.to.83.AARH..(Outlet.only).J
63.to.83.AARH..(Inlet.and..outlet). K
-
Parts ReplacementValves:.I.an.exact.replacement.valve.is.required,.the.valve.
type,.size.and.serial.number.must.be.specifed.to.assure.proper.
dimensions.and.material.being.supplied.I.a.specifc.valve.has.
become.obsolete,.a.recommendation.or.the.current.equivalent,.
i.any,.will.be.made
Spare Parts:.When.ordering.parts,.use.part.names.as.listed.in.
the.bills.o.material.in.this.catalog.Speciy.valve.type,.size.and.
serial.number.I.serial.number.is.not.available,.the.original.Far-
ris.actory.order.number.will.assist.in.our.supplying.the.proper.
part.and.material
Springs:.Order.as.an.assembly.to.include.spring.with.upper.
and.lower.spring.buttons.Speciy.valve.type,.size,.serial.num-
ber,.set.pressure.and.back.pressure,.i.any
* Includes a combination*o 4, 5, 6 & 8.
GuaranteeAll.products.manuactured.by.Farris.Engineering.are.warranted.
ree.o.deects.in.material.and.workmanship.when.used.within.
the.range.recommended.or.a.period.o.one.year.ater.installa-
tion.or.eighteen.months.rom.delivery.When.authorized,.any.
deective.product.may.be.returned.to.the.actory.and.i.ound.
deective.will.be.repaired.or.replaced.ree.o.charge,.solely.at.
the.discretion.o.Farris.Engineering,.ex-works.our.actory.No.
charge.or.labor.or.other.expense.incurred.will.be.allowed,.as.the.liability.o.Farris.Engineering.is.measured.by.the.reund.
price.o.the.deective.product.only.All.warranties.are.based.on.
the.product.being.used.within.the.range.recommended
This.warranty.does.not.cover.the.perormance.o.valves.tested.
at.site.on.test.equipment.that.is.not.to.the.same.technical.stan-
dard.as.that.used.by.the.manuacturer
/S4SpecialMaterialS4...Complete..316.St.St
S7..NACE..Construction
-
7/30/2019 Pressure Releif Valve
18/24
0 10 20 30 40 50 60 70 80 90 1000
10
20
30
40
50
60
70
80
90
10
11
Kb=
CAPACITYW
ITHBACKPRESSURE
.
RATEDCAPACITY
WITHOUTBACKPRESSURE
%.ABSOLUTE.BACK.PRESSURE.=.........TOTAL.BACK.PRESSURE,.PSIA
.......................................................SET.PRESSURE.+.OVERPRESSURE,.PSIA
..X.100
Example:.Set.Pressure.=.100.PSIG
Total.Back.Pressure.=.80.PSIG.(k.=.130)
%Absolute.BP.=......80.+.147......
x.100.=76%............................100.+.10.+.147
Follow.Dotted.Line.Kb.=.089.(From.Curve)
Capacity.with.BP.=.089.x.Rated.Capacity.without.BP
Back Pressure Sizing Factor Kb.
18
The.3800.Series.pilot.operated.valves.are.built.in.conormance.to.Section.VIII.o.the.ASME.Boiler.and..Pressure.Vessel.Code.or.air,.gas,.vapor.and.liquid.services..Sizing.is.per.the.equations.listed.below..
For Air, Gas & Vapor Service:..(SCFM). For Vapor or Gas Service:..(Lbs/hr)............For Liquid Service:..(GPM)
Where:. A... =.. Required.orifce.area.in.square.inches
. V. =. Required.gas.capacity.in.SCFM
. W. =. Required.vapor.capacity.in.pounds.per.hour
. VL. =. Required.liquid.capacity.in.US.gallons.per.minute
. P... =.. Relieving.pressure.in.pounds.per.square.inch.absolute.=.set.pressure.+.overpressure.+.147.psig.. . .
. . . where.the.overpressure.is.10%.or.3.psig,.whichever.is.greater..P.=.110.x.set.pressure.+.147.psig.. . .
. . . or.P.=.set.pressure.+.3.psig.+.147.psig
. P. =. Set.pressure.+.overpressure..back.pressure.in.psig
. T. =. Inlet.temperature,.absolute..(F.plus.460)
. C. =. Gas.or.vapor.ow.constant
. M. =. Average.molecular.weight.o.vapor
. G. =. Specifc.gravity.o.gas.or.liquid.at.actual.discharge.temperature
. Z. =. Compressibility.actor.corresponding.to.T.and.P..I.this.actor.is.not.available,.compressibility.. . .
. . . correction.can.be.saely.ignored.using.a.value.o..Z.=.10
. Kb. =. Back.pressure.correction.actor.(air,.gas.&.vapor.only)
. Kd.. =. Coefcient.o.discharge.(Note.1). ASME.(actual). API.(eective).
. . . Air,.gas.&.vapor.service,.API.Full.Nozzle.Design. 0859. 0954
. . . Air,.gas.&.vapor.service,.Full.Port.Design. 0801.n/a
. . . Liquid.service,.API.Full.Nozzle.Design.Only. 0782. 0869
A = VGTZ1.175CKdPKbA = WTZ CKdPMKb
Sizing Information
A = VLG 38.0KdPKu
General Notes:
1.When.sizing.and.selecting.valves.by.the.API.orifce.areas,.use.the.API.coefcient.o.discharge.in.the.equation
-
7/30/2019 Pressure Releif Valve
19/2419
A ull line o accessories is available to meetyour service requirements.
Manual or Remote Blowdown:.the.main.valve.can.be.cycled..
to.the.open.position.by.venting.the.pressure.in.the.dome.above.the.piston.The.optional.manual.valve.or.this.purpose.mounts.directly..
on.the.main.valve.By.installing.a.solenoid.valve,.the.main.valve.can.
be.cycled.remotely.Neither.the.manual.or.remote.blowdown.system.
will.interere.with.the.normal.overpressure.protection.provided.by..
the.main.valve.and.pilot
Reverse Flow Preventer:.in.a.system.where.back.pressure.
exceeds.system.pressure,.it.is.possible.or.the.main.valve.to.open.and.
allow.ow.rom.the.discharge.system.to.enter.the.inlet.side.A.reverse.
ow.preventer.assures.that.the.back.pressure,.as.a.minimum,.is.
maintained.in.the.dome.area.so.that.the.main.valve.remains.closed
Field Test Connection:.the.set.pressure.o.Farris.pilot.operated.
relie.valves.can.be.verifed.without.interrupting.system.protection.and.
does.not.require.overpressure.o.the.system.An.auxiliary.source.o.
pressure,.such.as.a.nitrogen.bottle,.is.connected.to.the.pilot.sensing.
line.through.a.stop.valve.Pressure.applied.to.the.pilot.valve.reacts.the.
way.it.would.i.the.pilot.were.sensing.overpressure.in.the.main.valve.
sensing.line.A.check.valve.restricts.the.source.pressure.rom.back-
owing.into.the.main.inlet.Both.pilot.and.main.valves.will.cycle.at.set.
pressure,.veriying.the.set.pressure.and.validating.that.the.system.is.in.compliance.with.ASME.Section.VIII,.UG-136(a)(3)
Spike Snubbers:.a.spike.snubber.installed.in.the.pilot.valve.
sensing.line.will.eliminate.the.negative.eects.o.pressure.pulsation.
caused.by.a.positive.displacement.compressor.It.assures.that.the.
pilot.valve.is.sensing.and.reacting.to.mean.pressure.to.protect..
the.system.and.not.to.cyclic.pressure.that.can.be.caused.by.a.com-
pressor
Auxiliary Filters:.every.PCF3.pilot.valve.is.manuactured..
with.an.internal.flter.to.reduce.the.ow.o.erosive.particles.
through.the.pilot.control.Auxiliary.flters.or.the.pilot.valve..
sensing.line.are.available.to.complement.the.internal.flter..
or.special.services
PILOTCONTROL
EXHAUST
EXHAUST
MANUAL.BLOWDOWN.VALVE(OPEN.TO.DEPRESSURE)
CHECK.VALVE.FORREMOTE.CONTROL.ONLY
INLET.PRESSURECONNECTION
INLET.PRESSURECONNECTION
DOUBLE.ACTINGCHECK.VALVE
PILOTCONTROL
EXHAUST
PILOTCONTROL
EXHAUST
INLET.PRESSURECONNECTION
CHECK.VALVEBLEED.VALVECHECK.VALVE
AUXILIARYPRESSURE
SOURCE
AUXILIARYINPUT.LINE
PRESSURE.REGULATOR.AND/ORMANUAL.METERING.VALVE.FOR.TESTING
MANUAL.STOP.VALVE(OPEN.FULLY.BEFORE
TESTING.SAFETY.VALVE)
Accessories
Manual or Remote Blowdown
Reverse Flow Preventer
Field Test Connection
-
7/30/2019 Pressure Releif Valve
20/24
Dimensions and Weights: API Nozzle
20
Valve SizeInlet x Outlet
Type Number
ANSIFlange Class
Dimension(Inches) Approx.
WeightLbs.Inlet
RFOulet
RFA B C E F
1.x.2
38DC10-12038DC12-120
38DC13-120
150#300#
600#
150#....12.1/812.3/8
12.3/8
4.1/24.1/2
4.1/2
4.1/84.3/8
4.3/8
1/161/16
1/4
11/1615/16
15/16
30......30......
30......38DC14-12038DC15-12038DC16-120
900#1500#2500#
300#....12.7/812.7/8
13
4.3/44.3/44.3/4
4.15/16..4.15/164.15/16..
1/41/41/4
1.7/161.7/16
1.11/16
49......49......55......
1.x.2
38EC10-120.38EC12-120.38EC13-120
150#300#600#
150#....12.1/812.3/812.3/8
4.1/24.1/24.1/2
4.1/84.3/84.3/8
1/161/161/4
11/1615/1615/16
30......30......30......
.38EC14-120
.38EC15-120
.38EC16-120
900#1500#2500#
300#....12.7/812.7/8
13
4.3/44.3/44.3/4
4.15/16.4.15/16.4.15/16..
1/41/41/4
1.7/161.7/16
1.11/16
49......49......55......
1.x.2
.38FC10-120
.38FC12-120
.38FC13-120
150#300#600#
150#....12.1/812.3/812.3/8
4.1/24.1/24.1/2
4.1/84.3/84.3/8
1/161/161/4
11/1615/1615/16
30......30......30......
.38FC14-120
.38FC15-120
.38FC16-120
900#1500#2500#
300#....12.7/812.7/8
13
4.3/44.3/44.3/4
4.15/16..4.15/16..4.15/16..
1/41/41/4
1.7/161.7/16
1.11/16
49......49......55......
1.1/2.x.2.......
38DC10X-12038DC12X-12038DC13X-120
150#300#600#....
150#....13.1/213.1/213.1/2
4.3/44.3/44.3/4
4.7/84.7/84.7/8
1/161/161/4
1.1/81.1/81.1/8
32......32......32......
38DC14X-12038DC15X-12038DC16X-120
900#1500#2500#
300#....14.1/214.1/214.5/8
5.1/25.1/25.1/2
5.7/85.7/85.7/8
1/41/41/4
1.9/161.9/162.1/8
71......71......85......
1.1/2.x.2.
38EC10X-12038EC12X-12038EC12X-120
150#300#600#
150#....13.1/213.1/213.1/2
4.3/44.3/44.3/4
4.7/84.7/84.7/8
1/161/161/4
1.1/81.1/81.1/8
32......3232............
38EC14X-12038EC15X-12038EC16X-120
900#1500#2500#
300#....14.1/214.1/214.5/8
5.1/25.1/25.1/2
5.7/85.7/85.7/8
1/41/41/4
..1.9/16.1.9/162.1/8
7171......85......
1.1/2.x.2.......
38FC10X-12038FC12X-12038FC13X-120
150#300#600#....
150#....13.1/213.1/213.1/2
4.3/44.3/44.3/4
4.7/84.7/84.7/8
1/161/161/4
1.1/81.1/81.1/8
32......32......32......
38FC14X-12038FC15X-12038FC16X-120
900#1500#2500#
300#....14.1/214.1/214.5/8
5.1/25.1/25.1/2
5.7/85.7/85.7/8
1/41/41/4
1.9/161.9/162.1/8
71......71......85......
1.1/2.x.3.......
38GC10-12038GC12-12038GC13-120
150#300#600#....
150#....13.1/213.1/213.1/2
4.7/84.7/84.7/8
5.1/85.1/85.1/8
1/161/161/4
1.3/161.3/161.3/16
40......40......42......
38GC14-12038GC15-12038GC16-120
900#1500#2500#
300#....14.3/414.3/414.7/8
6.3/46.3/46.3/4
6.3/86.3/86.3/8
1/41/41/4
1.9/161.9/162.1/8
81......81......96......
1.1/2.x.3......
38HC10-12038HC12-12038HC13-120
150#300#600#....
150#...13.1/213.1/213.1/2
4.7/84.7/84.7/8
5.1/85.1/85.1/8
1/161/161/4
1.3/161.3/161.3/16
40......40......42......
38HC14-12038HC15-12038HC16-120
900#1500#2500#
300#....14.3/414.3/414.7/8
6.3/46.3/46.3/4
6.3/86.3/86.3/8
1/41/41/4
1.9/161.9/162.1/8
81......81......96......
2.x.3
38GC10X-120
38GC12X-12038GC13X-120
150#
300#600#
150#....
14.1/2
14.1/214.1/2
4.7/8
4.7/84.7/8
5.3/8
5.3/85.3/8
1/16
1/161/4
1.1/4
1.1/41.1/4
45......
55......75......
38GC14X-12038GC15X-12038GC16X-120
900#1500#2500#
300#/600#...15.5/815.5/816.1/4
6.3/46.3/46.3/4
6.9/166.9/16
7
1/41/41/4
1.7/81.7/82.3/8
102.....102.....124.....
2.x.3
38HC10X-12038HC12X-12038HC13X-120
150#300#600#
150#....14.1/214.1/214.1/2
4.7/84.7/84.7/8
5.3/85.3/85.3/8
1/161/161/4
1.1/41.1/41.1/4
45......55......75......
38HC14X-12038HC15X-12038HC16X-120
900#1500#2500#
300#/600#...15.5/815.5/816.1/4
6.3/46.3/46.3/4
6.9/166.9/16
7
1/41/41/4
1.7/81.782.3/8
102.....102.....124.....
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7/30/2019 Pressure Releif Valve
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A
B
C
E F
21
Dimensions and Weights: API Nozzle
General Notes:1.For.liquid.service.valves.with.standard.size.connections.(L.in.the.type.number),.use.the...............standard.type.number.dimensions,.ie.38HC10-120.For.liquid.service.valves.with.oversize.....connections.(Y.in.the.type.number),.use.the.oversize.type.number.dimensions,.ie.. .....38DC10X-1202.Valves.with.ring.joint.inlet.connections.available.on.application.only.Consult.the.Factory
3.For.modulating.valves,.add.2.1/2.to.the.A.dimension
Valve SizeInlet x Outlet
Type Number
ANSIFlange Class
Dimension(Inches) Approx.
WeightLbs.Inlet
RFOulet
RFA B C E F
2.x.3
38JC10-12038JC12-120
38JC13-120
150#300#
600#
150#....14.1/214.1/2
14.1/2
4.7/84.7/8
4.7/8
5.3/85.3/8
5.3/8
1/161/16
1/4
1.1/41.1/4
1.1/4
45......55......
75......38JC14-12038JC15-12038JC16-120
900#1500#2500#
300#/600#15.5/815.5/816.1/4
6.3/46.3/46.3/4
6.9/166.9/16
7
1/41/41/4
1.7/81.7/82.3/8
102.....102.....124.....
3.x.4
38JC10X-12038JC12X-12038JC13X-120
150#300#600#
150#17.1/817.1/817.3/8
6.3/86.3/86.3/8
6.1/86.1/86.3/8
1/161/161/4
1.1/41.1/41.1/2
85......95......
100.....
38JC14X-12038JC15X-120
900#1500#
300#18.5/818.5/8
7.1/87.1/8
7.1/27.1/2
1/41/4
2.1/42.1/4
172.....187.....
3.x.4
38KC10-12038KC12-12038KC13-120
150#300#600#
150#17.1/817.1/817.3/8
6.3/86.3/86.3/8
6.1/86.1/86.3/8
1/161/161/4
1.1/41.1/41.1/2
95......105.....110.....
38KC14-12038KC15-120
900#1500#
300#18.5/818.5/8
7.1/87.1/8
7.1/27.1/2
1/41/4
2.1/42.1/4
172.....187.....
3.x.4
38LC10-120
38LC12-12038LC13-120
150#
300#600#
150#
17.1/8
17.1/817.3/8
6.3/8
6.3/86.3/8
6.1/8
6.1/86.3/8
1/16
1/161/4
1.1/4
1.1/41.1/2
105.....
115.....125.....
38LC14-12038LC15-120
900#1500#
300#18.5/818.5/8
7.1/87.1/8
7.1/27.1/2
1/41/4
2.1/42.1/4
172.....187.....
4.x.638LC10X-12038LC12X-12038LC13X-120
150#300#600#
150#19.3/4.19.3/419.3/4.
8.1/48.1/48.1/4
7.3/47.3/47.3/4
1/161/161/4
1.3/41.3/41.3/4
120.....140.....145.....
4.x.638MC10-12038MC12-12038MC13-120
150#300#600#
150#19.3/4.19.3/419.3/4..
8.1/48.1/48.1/4
7.3/47.3/47.3/4
1/161/161/4
1.3/41.3/41.3/4
130.....140.....150.....
4.x.638NC10-12038NC12-12038NC13-120
150#300#600#
150#19.3/4.19.3/419.3/4.
8.1/48.1/48.1/4
7.3/47.3/47.3/4
1/161/161/4
1.3/41.3/41.3/4
130.....140.....155.....
4.x.638PC10-12038PC12-12038PC13-120
150#300#600#
150#19.3/4.19.3/419.3/4
8.1/48.1/48.1/4
7.3/47.3/47.3/4
1/161/161/4
1.3/41.3/41.3/4
130.....140.....155.....
6.x.838QC10-12038QC12-12038QC13-120
150#300#600#
150#24.1/8..24.1/824.3/8
9.1/29.1/29.1/2
9.7/16.9.7/16..
9.11/16
1/161/161/4
1.7/81.7/82.1/4
200.....220.....270.....
6.x.838RC10-12038RC12-12038RC13-120
150#300#600#
150#24.1/8.24.1/824.3/8
9.1/29.1/29.1/2
9.7/16..9.7/16.
9.11/16.
1/161/161/4
1.7/81.7/82.1/4
230.....270.....300.....
8.x.10..38TC10-12038TC12-12038TC13-120
150#300#600#
150#28.1/228.1/2..29.3/8
11....1111......
10.7/8..10.7/8
11.11/16.
1/161/161/4
1.5/81.5/8
2.3/16
450.....500.....700.....
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3800 Series Full Port Design:Dimensions & Weights
A
B
C
E F
22
General Notes:1.For.liquid.service.valves.with.standard.size.connections.(L.in.the.type.number),.use.the...............standard.type.number.dimensions,.ie.38HC10-120.For.liquid.service.valves.with.oversize.....connections.(Y.in.the.type.number),.use.the.oversize.type.number.dimensions,.ie.. .....38DC10X-1202.Valves.with.ring.joint.inlet.connections.available.on.application.only.Consult.the.Factory3.For.modulating.valves,.add.2.1/2.to.the.A.dimension
Valve SizeInlet x Outlet
Type Number
ANSIFlange Class
Dimension(Inches) Approx.
WeightLbs.Inlet
RFOulet
RFA B C E F
1.1/2.x.2.....
381C10-120
381C12-120381C13-120
150#
300#600#
150#
13.1/2
13.1/213.1/2
4.3/4
4.3/44.3/4
4.7/8
4.7/84.7/8...
1/16
1/161/4
1.1/8
1.1/81.1/8
35......
35......40......
381C14-120381C15-120381C16-120
900#1500#2500#
300#14.1/214.1/214.5/8
5.1/25.1/25.1/2
5.7/85.7/85.7/8
1/41/41/4
1.9/161.9/162.1/8
71......71......85......
1.1/2.x.3.......
381C10X-120381C12X-120381C13X-120
150#300#600#
150#13.1/213.1/213.1/2
4.7/84.7/84.7/8
5.1/85.1/85.1/8...
1/161/161/4
1.3/161.3/161.3/16
35......35......40......
381C14X-120381C15X-120381C16X-120
900#1500#2500#
300#14.3/414.3/414.7/8
6.3/46.3/46.3/4
6.3/86.3/86.3/8
1/41/41/4
1.9/161.9/162.1/8
81......81......96......
2.x.3
382C10-120382C12-120382C13-120
150#300#600#
150#14.1/214.1/214.1/2
4.7/84.7/84.7/8
5.3/85.3/85.3/8
1/161/161/4
1.1/41.1/41.1/4
50......60......80......
382C14-120382C15-120382C16-120
900#1500#2500#
300#/600#15.5/815.5/816.1/4
6.3/46.3/46.3/4
6.9/166.9/16
7
1/41/41/4
1.7/81.7/82.3/8
102.....102.....124.....
3.x.4
383C10-120383C12-120383C13-120
150#300#600#
150#17.1/817.1/817.3/8
6.3/86.3/86.3/8
6.1/86.1/86.3/8
1/161/161/4
1.1/41.1/41.1/2
90......100.....105.....
383C14-120383C15-120
900#1500#
300#18.5/818.5/8
7.1/87.1/8
7.1/27.1/2
1/41/4
2.1/42.1/4
172.....187.....
4.x.6384C10-120384C12-120384C13-120
150#300#600#
150#19.3/4..19.3/419.3/4.
8.1/48.1/48.1/4
7.3/47.3/47.3/4
1/161/161/4
1.3/41.3/41.3/4
135.....145.....160.....
6.x.8386C10-120386C12-120386C13-120
150#300#600#
150#24.1/8..24.1/824.3/8.
9.1/29.1/29.1/2
9.7/16.9.7/16.
9.11/16..
1/161/161/4
1.7/81.7/82.1/8
235.....275.....305.....
8.x.10..388C10-120388C12-120388C13-120
150#300#600#
150#28.1/228.1/2..29.1/4
11.....1111......
10.7/8..10.7/8..
11.11/16.
1/161/161/4
1.5/81.5/8
2.3/16
460.....510.....710.....
-
7/30/2019 Pressure Releif Valve
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Farris Engineering Products
Process Pressure Relie Valves
Test Stands
Special Purpose Pressure Relie Valves
Steam Saety Valves
MODELS T1500 & T6000..Air.&.Water.Testing
..Maximum.Pressures.o.1500.psig.and.6000.psig
..Test.Valves.to.8".Inlet.Size
..Stainless.Steel.Test.Drum.&.Test.Table
..Digital.Test.Gauge
SERIES 6400/6600..ASME.NB.Section.I.&.VIII.Certifed:..
Steam.&.Air
..Sizes:.1".x.2".to.4".x.6"
..Pressure.Range:.15.psig.to.1500.psig
..Temperature.Range:.-20F.to.+1000F
..Materials:.Carbon.and.Stainless.Steel
..Options:.Exposed.Spring.&.Closed.Bonnet
SERIES 1890/1896M..ASME.NB.Certifed:.Air,.Steam.&.Water
..Sizes:.1/2".x.1".&.3/4".x.1".(1890)...........1/2".x.3/4".&.3/4".x.3/4".(1896M)
..Pressure.Range:...........15.psig.to.800.psig.(1890)...........15.psig.to.300.psig.(1896M)
..Temperature.Range:............-20F.to.+750F.(1890)...........-450F.to.+400F.(1896M)
..Materials:..Stainless.Steel.Body.&.Trim.(1890).Brass.Body.&.Trim,.Bronze.Bonnet..(1896M)
SERIES 4200..ASME.NB.Section.I.&.VIII.Certifed:..
Steam.&.Air..Sizes.1.1/4".x.1.1/2".to.6".x.8"
..Pressure.Range:.15.psig.to.1000.psig
..Temperature.Range:.-20F.to.+1000F
..Materials:..Carbon./.Alloy.St.&..Stainless.Steel
SERIES 3800 Pilot Operated..ASME.NB.Certifed:..Air,.Steam..
&.Water
..Sizes:.1".x.2".to.12".x.16"
..Pressure.Range:.15.psig.to.6170.psig
..Temperature.Range:.-450F.to.+500F
..Materials:.Steel.Body.&.Bonnet,.Stainless.Steel.Trim
..Options:.Modulating.Pilot.Control,..Complete.316.Stainless.Steel..Construction
SERIES 2700..ASME.NB.Certifed:.Air,.Steam.&.Water
..Sizes:.1/2".x.1".to.1-1/2".x.2-1/2"
..Pressure.Range:.15.psig.to.6500.psig
..Temperature.Range:.-450F.to.+750F
..Materials:.Stainless.Steel.Body.&.Trim,..Carbon.Steel.Bonnet
..Options:.Stainless.Steel,.Monel.&..Hastelloy.Materials,.O-Ring.Seats,.Flanged,.Socket.Weld,.Welding.Nipple,.&.Sanitary.Connections
SERIES 2850/2856..ASME.NB.Certifed:.Air.&.Steam
..Sizes:.3/4".x.1".to.1-1/2".x.2".(2850)...........3/4".x.1-1/4".to.2".x.3".(2856)
..Pressure.Range:.15.psig.to.300.psig
..Temperature.Range:...........-20.F.to.+750F.(2850)...........-450.F.to.+400F.(2856)
..Materials:.Stainless.Steel.Body.&.Trim.Steel.Bonnet.(2850).Brass.Body.&.Trim,.Bronze.Bonnet.(2856)
SERIES 2600/2600L..ASME.NB.Certifed:.Air,.Steam.&.Water
..Sizes:.1".x.2".to.20".x.24"..Pressure.Range:.15.psig.to.6000.psig
..Temperature.Range:.-450F.to.+1500F
..Materials:.Carbon.Steel,.Stainless,..Monel.&.Hastelloy.C
..Options:.Balanced.Bellows,.O-Ring..Seat,.Open.Bonnet
-
7/30/2019 Pressure Releif Valve
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