Pressure Relief Valves

Filter

Search Within Category

: Show In Stock Items Only
: Apollo™ (397)
Kunkle (581)
WATTS® (60)
: Apollo 10-600 Safety Relief Valves (310)
Apollo 12-200 Safety Relief Valves (12)
Apollo 13 Series Steam Boiler Valves (25)
Apollo 14-200 Safety Relief Valves (17)
Apollo 16 Series Pressure Relief Valves (11)
Apollo Model TPC Relief Valves (19)
Kunkle Model 20 Safety Relief Valves (87)
Kunkle Model 215V Vacuum Relief Valves (15)
Kunkle Model 337 Safety Relief Valves (26)
Kunkle Model 537 Safety Relief Valves (50)
: 1/2 in (66)
1/2 in x 1/2 in (13)
1/2 in x 3/4 in (26)
1/2 in x Top Outlet (8)
3/4 in (81)
3/4 x 1/2 in (5)
3/4 x 3/4 in (2)
3/4 in x 3/4 in (27)
3/4 x 1 in (30)
3/4 in x 1 in (42)
: ANSI 250 Flanged x ANSI 125 Flanged (9)
ANSI 250 Flanged x FNPT (27)
FNPT (356)
FNPT x FNPT (61)
MNPT (58)
MNPT x FNPT (470)
MNPT x Top Outlet (52)
: Air/Gas ASME Section VIII (167)
Air/Gas ASME Section VIII & XIII (10)
Air/Gas, Non-Code (20)
Hot Water ASME Section IV (50)
Liquid, Non-Code (87)
Steam ASME Section I (179)
Steam ASME Section IV & XIII (3)
Steam ASME Section IV, Air, Steam, & Gas Section VIII & XIII, (47)
Steam, Non-Code (2)
Vacuum Air Non-Code (15)
: 5 psig (13)
6 psig (8)
7 psig (1)
8 psig (11)
9 psig (4)
10 psig (16)
11 psig (3)
12 psig (11)
13 psig (1)
14 psig (3)
: Brass (67)
Bronze (835)
Cast Bronze (9)
Cast Copper Silicon Alloy (2)
Cast Iron (116)
Copper Alloy (2)
Copper Silicon Alloy (5)
: Alloy Steel (140)
Alloy Steel/Brass (51)
Alloy Steel/Silicone (1)
Bronze Disc & Nozzle (41)
Bronze Nozzle, Disc & Guide (3)
Bronze Seat w/EPDM Insert (25)
Bronze Seat w/EPDM Insert & NBR O-Ring (25)
Bronze/Brass Seat (342)
EPDM Disc/Modified TFE Seat/Stainless Steel Spring (1)
EPR O-Ring (10)
: Domestic (455)

1038 items

Sort by:

show:

content loaded

Compare

WATTS® 0274836 174A-150 Pressure Relief Valve, 3/4 in Nominal, FNPT End Style, 150 psi Set Pressure, Bronze Body, Domestic

CBPN:

96842

MPN:

0274836

This item has been discontinued by the manufacturer

Prop 65:

Compare

WATTS® 0275054 174A-050 Pressure Relief Valve, 1 in Nominal, FNPT End Style, 50 psi Set Pressure, Bronze Body, Domestic

CBPN:

34706

MPN:

0275054

This item has been discontinued by the manufacturer

Prop 65:

Compare

WATTS® 0275404 174A-125 Pressure Relief Valve, 1 in Nominal, FNPT End Style, 125 psi Set Pressure, Bronze Body, Domestic

CBPN:

7960

MPN:

0275404

This item has been discontinued by the manufacturer

Prop 65:

Compare

WATTS® 0315130 Automatic Reseating Temperature/Pressure Relief Valve, 1 in Nominal, FNPT End Style, 150 psi Set Pressure, Bronze Body, Domestic

CBPN:

264937

MPN:

0315130

Price:

$1810.88 / EA

QTY

Prop 65:

Price:

$1810.88 / EA

QTY

Compare

WATTS® 0372273 530 Calibrated Pressure Relief Valve, 3/4 in Nominal, MNPT x FNPT End Style, 100-300 psi Adjustable Set Pressure, Brass Body, Domestic

CBPN:

265336

MPN:

0372273

Price:

$211.03 / EA

QTY

Prop 65:

Price:

$211.03 / EA

QTY

Compare

WATTS® 0556000 LF100XL Temperature/Pressure Relief Valve, 3/4 in Nominal, MNPT x FNPT End Style, 150 psi Set Pressure, Copper Alloy Body, Domestic

CBPN:

167104

MPN:

0556000

Price:

$41.22 / EA

QTY

Prop 65:

Price:

$41.22 / EA

QTY

Compare

WATTS® 0556001 LF100XL Temperature/Pressure Relief Valve, 3/4 in Nominal, MNPT x FNPT End Style, 150 psi Set Pressure, Copper Alloy Body, Domestic

CBPN:

183741

MPN:

0556001

Price:

$69.69 / EA

QTY

Prop 65:

Price:

$69.69 / EA

QTY

Compare

WATTS® 0556013 LF40L Automatic Reseating Temperature/Pressure Relief Valve, 3/4 in Nominal, MNPT x FNPT End Style, 125 psi Set Pressure, Brass Body, Domestic

CBPN:

190795

MPN:

0556013

This item has been discontinued by the manufacturer

Prop 65:

Compare

WATTS® 0556016 LF40XL-150210 Automatic Reseating Temperature/Pressure Relief Valve, 3/4 in Nominal, MNPT x FNPT End Style, 150 psi Set Pressure, Brass Body, Domestic

CBPN:

167146

MPN:

0556016

This item has been discontinued by the manufacturer

Prop 65:

Compare

WATTS® 0556035 LF530-C Calibrated Pressure Relief Valve, 1/2 in Nominal, MNPT x FNPT End Style, 150 psi Set Pressure, Brass Body, Domestic

CBPN:

179154

MPN:

0556035

Price:

$132.28 / EA

QTY

Prop 65:

Price:

$132.28 / EA

QTY

Compare

WATTS® 0556036 LF530-C Calibrated Pressure Relief Valve, 3/4 in Nominal, MNPT x FNPT End Style, 150 psi Set Pressure Pressure, Brass Body, Domestic

CBPN:

219283

MPN:

0556036

Price:

$170.03 / EA

QTY

Prop 65:

Price:

$170.03 / EA

QTY

Compare

WATTS® F121475 LF174A Automatic Reseating Valve, 3/4 in Nominal, FNPT End Style, 75 psi Pressure, Copper Silicon Alloy Body, Domestic

CBPN:

285498

MPN:

F121475

Price:

$307.36 / EA

QTY

Price:

$307.36 / EA

QTY

Compare

WATTS® F121484 LF174A Automatic Reseating Valve, 3/4 in Nominal, FNPT End Style, 112 psi Pressure, Copper Silicon Alloy Body, Domestic

CBPN:

288920

MPN:

F121484

Price:

$307.36 / EA

QTY

Price:

$307.36 / EA

QTY

Compare

WATTS® F156731 40L Automatic Reseating Pressure Relief Valve, 3/4 in Nominal, MNPT x FNPT End Style, 150 psi Set Pressure, 210 deg F, 5 in L Probe, Bronze Body, Domestic

CBPN:

288135

MPN:

F156731

Price:

$281.84 / EA

QTY

Price:

$281.84 / EA

QTY

Compare

WATTS® F163803 LL40XL Automatic Reseating Valve, 3/4 in Nominal, MNPT x FNPT End Style, 112 psi Pressure, 210 deg F, 5 in L Probe, Bronze Body, Domestic

CBPN:

299223

MPN:

F163803

Price:

$938.97 / EA

QTY

Price:

$938.97 / EA

QTY

Compare

WATTS® 0274836 174A-150 Pressure Relief Valve, 3/4 in Nominal, FNPT End Style, 150 psi Set Pressure, Bronze Body, Domestic

This item has been discontinued by the manufacturer

Prop 65:

Compare

WATTS® 0275054 174A-050 Pressure Relief Valve, 1 in Nominal, FNPT End Style, 50 psi Set Pressure, Bronze Body, Domestic

This item has been discontinued by the manufacturer

Prop 65:

Compare

WATTS® 0275404 174A-125 Pressure Relief Valve, 1 in Nominal, FNPT End Style, 125 psi Set Pressure, Bronze Body, Domestic

This item has been discontinued by the manufacturer

Prop 65:

Compare

WATTS® 0315130 Automatic Reseating Temperature/Pressure Relief Valve, 1 in Nominal, FNPT End Style, 150 psi Set Pressure, Bronze Body, Domestic

CBPN:

264937

MPN:

0315130

Prop 65:

Price:

$1810.88 / EA

QTY

Compare

WATTS® 0372273 530 Calibrated Pressure Relief Valve, 3/4 in Nominal, MNPT x FNPT End Style, 100-300 psi Adjustable Set Pressure, Brass Body, Domestic

CBPN:

265336

MPN:

0372273

Prop 65:

Price:

$211.03 / EA

QTY

Compare

WATTS® 0556000 LF100XL Temperature/Pressure Relief Valve, 3/4 in Nominal, MNPT x FNPT End Style, 150 psi Set Pressure, Copper Alloy Body, Domestic

CBPN:

167104

MPN:

0556000

Prop 65:

Price:

$41.22 / EA

QTY

Compare

WATTS® 0556001 LF100XL Temperature/Pressure Relief Valve, 3/4 in Nominal, MNPT x FNPT End Style, 150 psi Set Pressure, Copper Alloy Body, Domestic

CBPN:

183741

MPN:

0556001

Prop 65:

Price:

$69.69 / EA

QTY

Compare

WATTS® 0556013 LF40L Automatic Reseating Temperature/Pressure Relief Valve, 3/4 in Nominal, MNPT x FNPT End Style, 125 psi Set Pressure, Brass Body, Domestic

This item has been discontinued by the manufacturer

Prop 65:

Compare

WATTS® 0556016 LF40XL-150210 Automatic Reseating Temperature/Pressure Relief Valve, 3/4 in Nominal, MNPT x FNPT End Style, 150 psi Set Pressure, Brass Body, Domestic

This item has been discontinued by the manufacturer

Prop 65:

Compare

WATTS® 0556035 LF530-C Calibrated Pressure Relief Valve, 1/2 in Nominal, MNPT x FNPT End Style, 150 psi Set Pressure, Brass Body, Domestic

CBPN:

179154

MPN:

0556035

Prop 65:

Price:

$132.28 / EA

QTY

Compare

WATTS® 0556036 LF530-C Calibrated Pressure Relief Valve, 3/4 in Nominal, MNPT x FNPT End Style, 150 psi Set Pressure Pressure, Brass Body, Domestic

CBPN:

219283

MPN:

0556036

Prop 65:

Price:

$170.03 / EA

QTY

Compare

WATTS® F121475 LF174A Automatic Reseating Valve, 3/4 in Nominal, FNPT End Style, 75 psi Pressure, Copper Silicon Alloy Body, Domestic

CBPN:

285498

MPN:

F121475

Price:

$307.36 / EA

QTY

Compare

WATTS® F121484 LF174A Automatic Reseating Valve, 3/4 in Nominal, FNPT End Style, 112 psi Pressure, Copper Silicon Alloy Body, Domestic

CBPN:

288920

MPN:

F121484

Price:

$307.36 / EA

QTY

Compare

WATTS® F156731 40L Automatic Reseating Pressure Relief Valve, 3/4 in Nominal, MNPT x FNPT End Style, 150 psi Set Pressure, 210 deg F, 5 in L Probe, Bronze Body, Domestic

CBPN:

288135

MPN:

F156731

Price:

$281.84 / EA

QTY

Compare

WATTS® F163803 LL40XL Automatic Reseating Valve, 3/4 in Nominal, MNPT x FNPT End Style, 112 psi Pressure, 210 deg F, 5 in L Probe, Bronze Body, Domestic

CBPN:

299223

MPN:

F163803

Price:

$938.97 / EA

QTY

show:

Pressure Relief Valves

Filter

WATTS® 0274836 174A-150 Pressure Relief Valve, 3/4 in Nominal, FNPT End Style, 150 psi Set Pressure, Bronze Body, Domestic

This item has been discontinued by the manufacturer

WATTS® 0275054 174A-050 Pressure Relief Valve, 1 in Nominal, FNPT End Style, 50 psi Set Pressure, Bronze Body, Domestic

This item has been discontinued by the manufacturer

WATTS® 0275404 174A-125 Pressure Relief Valve, 1 in Nominal, FNPT End Style, 125 psi Set Pressure, Bronze Body, Domestic

This item has been discontinued by the manufacturer

WATTS® 0315130 Automatic Reseating Temperature/Pressure Relief Valve, 1 in Nominal, FNPT End Style, 150 psi Set Pressure, Bronze Body, Domestic

WATTS® 0372273 530 Calibrated Pressure Relief Valve, 3/4 in Nominal, MNPT x FNPT End Style, 100-300 psi Adjustable Set Pressure, Brass Body, Domestic

WATTS® 0556000 LF100XL Temperature/Pressure Relief Valve, 3/4 in Nominal, MNPT x FNPT End Style, 150 psi Set Pressure, Copper Alloy Body, Domestic

WATTS® 0556001 LF100XL Temperature/Pressure Relief Valve, 3/4 in Nominal, MNPT x FNPT End Style, 150 psi Set Pressure, Copper Alloy Body, Domestic

WATTS® 0556013 LF40L Automatic Reseating Temperature/Pressure Relief Valve, 3/4 in Nominal, MNPT x FNPT End Style, 125 psi Set Pressure, Brass Body, Domestic

This item has been discontinued by the manufacturer

WATTS® 0556016 LF40XL-150210 Automatic Reseating Temperature/Pressure Relief Valve, 3/4 in Nominal, MNPT x FNPT End Style, 150 psi Set Pressure, Brass Body, Domestic

This item has been discontinued by the manufacturer

WATTS® 0556035 LF530-C Calibrated Pressure Relief Valve, 1/2 in Nominal, MNPT x FNPT End Style, 150 psi Set Pressure, Brass Body, Domestic

WATTS® 0556036 LF530-C Calibrated Pressure Relief Valve, 3/4 in Nominal, MNPT x FNPT End Style, 150 psi Set Pressure Pressure, Brass Body, Domestic

WATTS® F121475 LF174A Automatic Reseating Valve, 3/4 in Nominal, FNPT End Style, 75 psi Pressure, Copper Silicon Alloy Body, Domestic

WATTS® F121484 LF174A Automatic Reseating Valve, 3/4 in Nominal, FNPT End Style, 112 psi Pressure, Copper Silicon Alloy Body, Domestic

WATTS® F156731 40L Automatic Reseating Pressure Relief Valve, 3/4 in Nominal, MNPT x FNPT End Style, 150 psi Set Pressure, 210 deg F, 5 in L Probe, Bronze Body, Domestic

WATTS® F163803 LL40XL Automatic Reseating Valve, 3/4 in Nominal, MNPT x FNPT End Style, 112 psi Pressure, 210 deg F, 5 in L Probe, Bronze Body, Domestic

WATTS® 0274836 174A-150 Pressure Relief Valve, 3/4 in Nominal, FNPT End Style, 150 psi Set Pressure, Bronze Body, Domestic

This item has been discontinued by the manufacturer

WATTS® 0275054 174A-050 Pressure Relief Valve, 1 in Nominal, FNPT End Style, 50 psi Set Pressure, Bronze Body, Domestic

This item has been discontinued by the manufacturer

WATTS® 0275404 174A-125 Pressure Relief Valve, 1 in Nominal, FNPT End Style, 125 psi Set Pressure, Bronze Body, Domestic

This item has been discontinued by the manufacturer

WATTS® 0315130 Automatic Reseating Temperature/Pressure Relief Valve, 1 in Nominal, FNPT End Style, 150 psi Set Pressure, Bronze Body, Domestic

WATTS® 0372273 530 Calibrated Pressure Relief Valve, 3/4 in Nominal, MNPT x FNPT End Style, 100-300 psi Adjustable Set Pressure, Brass Body, Domestic

WATTS® 0556000 LF100XL Temperature/Pressure Relief Valve, 3/4 in Nominal, MNPT x FNPT End Style, 150 psi Set Pressure, Copper Alloy Body, Domestic

WATTS® 0556001 LF100XL Temperature/Pressure Relief Valve, 3/4 in Nominal, MNPT x FNPT End Style, 150 psi Set Pressure, Copper Alloy Body, Domestic

WATTS® 0556013 LF40L Automatic Reseating Temperature/Pressure Relief Valve, 3/4 in Nominal, MNPT x FNPT End Style, 125 psi Set Pressure, Brass Body, Domestic

This item has been discontinued by the manufacturer

WATTS® 0556016 LF40XL-150210 Automatic Reseating Temperature/Pressure Relief Valve, 3/4 in Nominal, MNPT x FNPT End Style, 150 psi Set Pressure, Brass Body, Domestic

This item has been discontinued by the manufacturer

WATTS® 0556035 LF530-C Calibrated Pressure Relief Valve, 1/2 in Nominal, MNPT x FNPT End Style, 150 psi Set Pressure, Brass Body, Domestic

WATTS® 0556036 LF530-C Calibrated Pressure Relief Valve, 3/4 in Nominal, MNPT x FNPT End Style, 150 psi Set Pressure Pressure, Brass Body, Domestic

WATTS® F121475 LF174A Automatic Reseating Valve, 3/4 in Nominal, FNPT End Style, 75 psi Pressure, Copper Silicon Alloy Body, Domestic

WATTS® F121484 LF174A Automatic Reseating Valve, 3/4 in Nominal, FNPT End Style, 112 psi Pressure, Copper Silicon Alloy Body, Domestic

WATTS® F156731 40L Automatic Reseating Pressure Relief Valve, 3/4 in Nominal, MNPT x FNPT End Style, 150 psi Set Pressure, 210 deg F, 5 in L Probe, Bronze Body, Domestic

WATTS® F163803 LL40XL Automatic Reseating Valve, 3/4 in Nominal, MNPT x FNPT End Style, 112 psi Pressure, 210 deg F, 5 in L Probe, Bronze Body, Domestic

My Account

Support

SPECIALTY SERVICES

Contact Us