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  1. Home
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  3. Plumbing
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  5. Pipes, Valves & Fittings
  6. /
  7. Valves
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  9. Relief Valves

Relief Valves (2,000+ items) - Page 4

Apollo Valves T and P Relief Valve, FNPT, 3/4 In. Inlet 18C5125125
Apollo Valves

T and P Relief Valve, FNPT, 3/4 In. Inlet

Zoro # G2774046
Mfr # 18C5125125
product price:  $90.25
/ea
Dayton Relief Valve, 6 GPM, 1/2 NPT x 1/2 NPT 4KGZ8
Dayton

Relief Valve, 6 GPM, 1/2 NPT x 1/2 NPT

Zoro # G1881311
Mfr # 4KGZ8
product price:  $61.79
/ea
Aquatrol Safety Relief Valve, 1/2 x 3/4 In, 125 psi 89A2A1M2K1-125
Aquatrol

Safety Relief Valve, 1/2 x 3/4 In, 125 psi

Zoro # G0214672
Mfr # 89A2A1M2K1-125
product price:  $159.99
/ea
Kunkle Valve Adjustable Relief Valve, 1-1/2 In, 50 psi 0019-G10-MG0050
Kunkle Valve

Adjustable Relief Valve, 1-1/2 In, 50 psi

Zoro # G1598852
Mfr # 0019-G10-MG0050
product price:  $678.99
/ea
Pentair Manual Air Relief Valve, Clear 273564Z
Pentair

Manual Air Relief Valve, Clear

Zoro # G410824545
Mfr # 273564Z
product price:  $110.99
/ea
Aquatrol Safety Valve, 150 psi, 1 MNPT x 1 FNPT 570EE1M1K1-150
Aquatrol

Safety Valve, 150 psi, 1 MNPT x 1 FNPT

Zoro # G6988709
Mfr # 570EE1M1K1-150
product price:  $267.99
/ea
Aquatrol Safety Relief Valve, 3/4 x 1, 40 psi 740DF1M1K1-40
Aquatrol

Safety Relief Valve, 3/4 x 1, 40 psi

Zoro # G6817115
Mfr # 740DF1M1K1-40
product price:  $222.99
/ea
Watts Relief valve 3/4 174A 100 FS
Watts

Relief valve

Zoro # G110565779
Mfr # 3/4 174A 100 FS
product price:  $270.77
/ea
Kunkle Valve 1X1.25" 125N. 5258Pph Steamrlf 0537-E01-HM0125
Kunkle

Valve 1X1.25" 125N. 5258Pph Steamrlf

Zoro # G3186817
Mfr # 0537-E01-HM0125
product price:  $521.99
/ea
Watts Lf53L-150 0121443 Lead Free 1/2" LF53L-150
Watts

Lf53L-150 0121443 Lead Free 1/2"

Zoro # G6072456
Mfr # LF53L-150
product price:  $189.99
/ea
Watts Vacuum Relief Valve, 3/4" 0556031
Watts

Vacuum Relief Valve, 3/4"

Zoro # G8924017
Mfr # 0556031
product price:  $61.76
/ea
Maxitrol Rv20Lt-3/8 3/8" Gas Pressure RV20LT-3/8
Maxitrol

Rv20Lt-3/8 3/8" Gas Pressure

Zoro # G6997262
Mfr # RV20LT-3/8
product price:  $31.99
/ea
Maxitrol Rv48L-1/2" Gas Pressure RV48L-1/2"
Maxitrol

Rv48L-1/2" Gas Pressure

Zoro # G7005784
Mfr # RV48L-1/2"
product price:  $34.45
/ea
Conbraco 1 in. 15# Steam Relief, 643PPH 13-202-B15
Conbraco

1 in. 15# Steam Relief, 643PPH

Zoro # G709236424
Mfr # 13-202-B15
product price:  $127.99
/ea
Watts T and P Relief Valve, MNPT x FNPT 3/4 100XL 125
Watts

T and P Relief Valve, MNPT x FNPT

Zoro # G1416782
Mfr # 3/4 100XL 125
product price:  $36.89
/ea
Kunkle Valve Safety Relief Valve, 3/4in.x1in., 125 psi 6010EDM01AKM0125
Kunkle Valve

Safety Relief Valve, 3/4in.x1in., 125 psi

Zoro # G6991293
Mfr # 6010EDM01AKM0125
product price:  $334.99
/ea
Watts Pressure Relief Valve, Brass, 150 psi 1/2 530-C
Watts

Pressure Relief Valve, Brass, 150 psi

Zoro # G105444096
Mfr # 1/2 530-C
product price:  $114.99
/ea
Plast-O-Matic Pressure Relief Valve, 1/2In, 5 to 100 psi RVD050V-PP
Plast-O-Matic

Pressure Relief Valve, 1/2In, 5 to 100 psi

Zoro # G3969673
Mfr # RVD050V-PP
product price:  $345.99
/ea
Aquatrol Safety Relief Valve, 1-1/2 x 2 In, 150 psi 88E2A1M1K1-150
Aquatrol

Safety Relief Valve, 1-1/2 x 2 In, 150 psi

Zoro # G0214462
Mfr # 88E2A1M1K1-150
product price:  $246.99
/ea
Aquatrol Safety Relief Valve, 3/4 x 1 In, 100 psi 89B2A1M2K1-100
Aquatrol

Safety Relief Valve, 3/4 x 1 In, 100 psi

Zoro # G0214776
Mfr # 89B2A1M2K1-100
product price:  $140.99
/ea
Apollo Valves T and P Relief Valve, 1/2 In. Inlet 18C40129
Apollo Valves

T and P Relief Valve, 1/2 In. Inlet

Zoro # G1458807
Mfr # 18C40129
product price:  $38.29
/ea
Watts Relief valve 1 LF174A 125 FS
Watts

Relief valve

Zoro # G710565773
Mfr # 1 LF174A 125 FS
product price:  $494.99
/ea
Watts Temperature Pressure Relief Valve, Brass 3/4 100XL8 150/210
Watts

Temperature Pressure Relief Valve, Brass

Zoro # G405444086
Mfr # 3/4 100XL8 150/210
product price:  $55.89
/ea
Aquatrol Safety Relief Valve, 1/2 In, 150 psi, Brass 130CA1M1K1-150
Aquatrol

Safety Relief Valve, 1/2 In, 150 psi, Brass

Zoro # G0234902
Mfr # 130CA1M1K1-150
product price:  $71.89
/ea
Hayward Flow Control Relief Valve, 1-1/2", PVC/EPDM, Adjustable 5-75 psi, Threaded RV1150TE
Hayward Flow Control

Relief Valve, 1-1/2", PVC/EPDM, Adjustable 5-75 psi, Threaded

Zoro # G2355701
Mfr # RV1150TE
product price:  $1,067.99
/ea
Apollo Valves T and P Relief Valve, 3/4 In. Outlet 18C40229
Apollo Valves

T and P Relief Valve, 3/4 In. Outlet

Zoro # G1874564
Mfr # 18C40229
product price:  $35.69
/ea
Plast-O-Matic Pressure Relief Valve, 1/4In, 5 to 100 psi RVD025V-PV
Plast-O-Matic

Pressure Relief Valve, 1/4In, 5 to 100 psi

Zoro # G3941086
Mfr # RVD025V-PV
product price:  $243.99
/ea
Plast-O-Matic Relief Valve, 1 In, 5 to 100 psi, PVC RVDTM100T-PV
Plast-O-Matic

Relief Valve, 1 In, 5 to 100 psi, PVC

Zoro # G4130917
Mfr # RVDTM100T-PV
product price:  $715.99
/ea
Apollo Valves Relief Valve, 5 in Overall H, 75 psig 1061415
Apollo Valves

Relief Valve, 5 in Overall H, 75 psig

Zoro # G410070317
Mfr # 1061415
product price:  $151.99
/ea
Aquatrol Adjustable Relief Valve, 1-1/4 In, 125 psi 69D1A1M2U1-125
Aquatrol

Adjustable Relief Valve, 1-1/4 In, 125 psi

Zoro # G0216876
Mfr # 69D1A1M2U1-125
product price:  $227.99
/ea
Aquatrol Safety Relief Valve, 1/4 In, 15 psi, Brass 130AA1M1K1-15
Aquatrol

Safety Relief Valve, 1/4 In, 15 psi, Brass

Zoro # G0234726
Mfr # 130AA1M1K1-15
product price:  $72.19
/ea
Apollo Valves Relief Valve, 5 in Overall H, 50 psig 1061410
Apollo Valves

Relief Valve, 5 in Overall H, 50 psig

Zoro # G210070326
Mfr # 1061410
product price:  $140.99
/ea
Cash Acme 1/2 in. Bronze Pressure Relief Valve 18277-0075
Cash Acme

1/2 in. Bronze Pressure Relief Valve

Zoro # G7699219
Mfr # 18277-0075
product price:  $16.99
/ea
Kunkle Valve Safety Relief Valve, 1/2in.x3/4in., 100psi 6010DCM01AKM0100
Kunkle Valve

Safety Relief Valve, 1/2in.x3/4in., 100psi

Zoro # G6818935
Mfr # 6010DCM01AKM0100
product price:  $336.99
/ea
Kunkle Valve Safety Relief Valve, 1-1/2in.x2in., 150psi 6010HGM01AKM0150
Kunkle Valve

Safety Relief Valve, 1-1/2in.x2in., 150psi

Zoro # G6481657
Mfr # 6010HGM01AKM0150
product price:  $576.99
/ea
Watts Temperature and Pressure Relief Valve 3/4 LF40XL-5 125/210FS
Watts

Temperature and Pressure Relief Valve

Zoro # G210565846
Mfr # 3/4 LF40XL-5 125/210FS
product price:  $191.99
/ea
Relief Valves (2,000+ items) - Page 4
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About Relief Valves

Relief Valves are safety valves that regulate the pressure of a system. They can be used to protect the system from overpressure or to maintain a certain pressure in the system. There are various types of relief valves, each designed for different applications and purposes.

Types of Relief Valves

Pressure relief valves, safety relief valves, and other types of relief valves all serve different purposes and have unique features that make them suitable for specific applications. Pressure relief valves are designed to open at a predetermined pressure to relieve excess pressure from the system while safety relief valves provide emergency protection against overpressure.

How Relief Valves are Made

Relief Valves are typically made with metal bodies and valve discs, such as stainless steel or brass. The valve disc is usually connected to a spring which helps keep it closed until the set pressure is reached. Additionally, some Relief Valves use compounds like rubber or plastic seals in order to ensure proper operation.

Industries that use Relief Valves

Relief Valves can be found in a variety of industries including oil and gas production, power generation, chemical processing, water treatment plants, and more. Professionals in these industries rely on Relief Valves as an important part of their operations because they help protect systems from dangerous overpressure scenarios.

Find the Relief Valves You Need at Zoro

Looking for a specific item? Use our robust search tool to find it by name or keyword, or use our handy filters to narrow down our full assortment. You can also check out our whole selection of plumbing tools & supplies, along with other equipment and essentials to ensure you have all you need to tackle the job, especially if you're taking on a DIY project for the first time.
Plus, when you shop at Zoro, you'll always enjoy competitive prices on tons of great brands you know and trust. We make the shopping experience as fast and seamless as possible with free shipping on orders over $50 for registered users, Net 30 payment terms for qualifying customers, and an unparalleled customer service experience.

Related Categories

Ball ValvesCheck ValvesValve PartsSolenoid ValvesBlack Pipe Fittings
PVC Pipe FittingsStainless Steel Pipe FittingsCamlock FittingsBrass Pipe FittingsCopper Fittings
1" safety valve2" steam valve75 psi relief valveair vacuum valve1-1/2" fnpt x mnpt
hayward back pressure valvepresure relief valveplast-o-matic 2" ball valvevalve reliefaquatrol adjustable relief valve

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