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  5. Pipes, Valves & Fittings
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  9. Relief Valves
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Relief Valves (2,000+ items)

Cash Acme Temp/Pressure Relief Valve, 150 PSI, 210 F 18821-0150
Cash Acme

Temp/Pressure Relief Valve, 150 PSI, 210 F

Zoro # G0080538
Mfr # 18821-0150
product price:  $20.89
/ea
Watts T and P Relief Valve, 3/4 In. Inlet 100XL-4
Watts

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

Zoro # G2582982
Mfr # 100XL-4
product price:  $33.14
/ea
Apollo Valves Safety Relief Valve, 3/4In, 150 psi, Bronze 1060434
Apollo Valves

Safety Relief Valve, 3/4In, 150 psi, Bronze

Zoro # G0532944
Mfr # 1060434
product price:  $111.99
/ea
Watts Adjustable Relief Valve, 1/2 In, 175 psi 1/2 LF530-C
Watts

Adjustable Relief Valve, 1/2 In, 175 psi

Zoro # G3108542
Mfr # 1/2 LF530-C
product price:  $132.28
/ea
Watts Calibrated Adjustable Relief Valve, 3/4 in MNPT x 1/2 in FNPT, 0 to 180 Degrees F 530-3/4
Watts

Calibrated Adjustable Relief Valve, 3/4 in MNPT x 1/2 in FNPT, 0 to 180 Degrees F

Zoro # G3453791
Mfr # 530-3/4
product price:  $102.23
/ea
Porter-Cable Pressure Relief Valve; 150 PSI ASME PXCM136-0005
Porter-Cable

Pressure Relief Valve; 150 PSI ASME

Zoro # G905312601
Mfr # PXCM136-0005
product price:  $12.69
/ea
Dayton Relief Valve, 25 GPM, 3/4 NPT x 3/4 NPT 4KHA1
Dayton

Relief Valve, 25 GPM, 3/4 NPT x 3/4 NPT

Zoro # G1435892
Mfr # 4KHA1
product price:  $65.79
/ea
Watts Adjustable Relief Valve, 3/4 x 1/2 In 3/4 LF 530-C STD
Watts

Adjustable Relief Valve, 3/4 x 1/2 In

Zoro # G0395281
Mfr # 3/4 LF 530-C STD
product price:  $141.11
/ea
Watts Pressure Relief Valve, Brass, 150 psi 3/4 530-C
Watts

Pressure Relief Valve, Brass, 150 psi

Zoro # G005444073
Mfr # 3/4 530-C
product price:  $127.99
/ea
Dewalt Pressure Relief Valve; 200 PSI ASME DXCM136-0007
Dewalt

Pressure Relief Valve; 200 PSI ASME

Zoro # G505312599
Mfr # DXCM136-0007
product price:  $16.39
/ea
Watts Vacuum Relief Valve, 0 to 200 psi, SS LFN36-M1-3/4"
Watts

Vacuum Relief Valve, 0 to 200 psi, SS

Zoro # G5388275
Mfr # LFN36-M1-3/4"
product price:  $65.29
/ea
Aquatrol Adjustable Relief Valve, 1 In, 100 psi 69C1A1M2U1-100
Aquatrol

Adjustable Relief Valve, 1 In, 100 psi

Zoro # G0216763
Mfr # 69C1A1M2U1-100
product price:  $185.99
/ea
Cash Acme Vacuum Relief Valve, Brass, NPT, Vented 22397LF
Cash Acme

Vacuum Relief Valve, Brass, NPT, Vented

Zoro # G4595109
Mfr # 22397LF
product price:  $16.69
/ea
Watts Relief valve 3/4 174A 150 FS
Watts

Relief valve

Zoro # G310565746
Mfr # 3/4 174A 150 FS
product price:  $275.99
/ea
Watts T and P Relief Valve, MNPT x FNPT LF100XL-4 M7
Watts

T and P Relief Valve, MNPT x FNPT

Zoro # G0285293
Mfr # LF100XL-4 M7
product price:  $32.19
/ea
Watts Relief Valve, 30, 3/4", 0342691 0342691
Watts

Relief Valve, 30, 3/4", 0342691

Zoro # G9550200
Mfr # 0342691
product price:  $52.39
/ea
Dewalt Pressure Relief Valve; 175 PSI ASME DXCM136-0077
Dewalt

Pressure Relief Valve; 175 PSI ASME

Zoro # G505312605
Mfr # DXCM136-0077
product price:  $11.89
/ea
Eco-Flo Pressure Relief Valve, 1/2", Brass EFARV
Eco-Flo

Pressure Relief Valve, 1/2", Brass

Zoro # G2121605
Mfr # EFARV
product price:  $15.39
/ea
Cash Acme T and P Relief Valve, MNPT x FNPT FVMX-3C
Cash Acme

T and P Relief Valve, MNPT x FNPT

Zoro # G2956791
Mfr # FVMX-3C
product price:  $151.99
/ea
Watts Vacuum Relief Valve, 1/2 In, Up to 200 psi 1/2 LF N36
Watts

Vacuum Relief Valve, 1/2 In, Up to 200 psi

Zoro # G0998471
Mfr # 1/2 LF N36
product price:  $68.49
/ea
Apollo Valves Safety Relief Valve, 1 In, 15 psi 13202B15
Apollo Valves

Safety Relief Valve, 1 In, 15 psi

Zoro # G1340753
Mfr # 13202B15
product price:  $57.69
/ea
Cash Acme Vacuum Relief Valve, 3/4in, MNPT, 125 psi 22398LF
Cash Acme

Vacuum Relief Valve, 3/4in, MNPT, 125 psi

Zoro # G6899742
Mfr # 22398LF
product price:  $21.45
/ea
Kunkle Valve Safety Relief Valve, 1-1/4in.x1-1/2in. 6010GFM01AAM0150
Kunkle Valve

Safety Relief Valve, 1-1/4in.x1-1/2in.

Zoro # G6519624
Mfr # 6010GFM01AAM0150
product price:  $484.99
/ea
Watts T and P Relief Valve, 3/4 In. Outlet 3/4 LF LLL100XL-2
Watts

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

Zoro # G2620746
Mfr # 3/4 LF LLL100XL-2
product price:  $53.89
/ea
Wilkins Pressure Relief Valve P1000AXL-150C
Wilkins

Pressure Relief Valve

Zoro # G8668595
Mfr # P1000AXL-150C
product price:  $62.99
/ea
Campbell Relief Valve, 3/4 x 1/2 In, 75 psi, Brass RV3NLF
Campbell

Relief Valve, 3/4 x 1/2 In, 75 psi, Brass

Zoro # G1713862
Mfr # RV3NLF
product price:  $14.69
/ea
Apollo Valves Safety Relief Valve, 1 In, 125 psi, Bronze, BtuH: 4, 272, 000 1060525
Apollo Valves

Safety Relief Valve, 1 In, 125 psi, Bronze, BtuH: 4, 272, 000

Zoro # G2036002
Mfr # 1060525
product price:  $137.99
/ea
Kunkle Valve Safety Relief Valve, 2in.x2in., 15 psi 930-H01-GC0015
Kunkle Valve

Safety Relief Valve, 2in.x2in., 15 psi

Zoro # G6121692
Mfr # 930-H01-GC0015
product price:  $398.99
/ea
Apollo Valves Safety Relief Valve, 3/4 In, 125 psi 1740203
Apollo Valves

Safety Relief Valve, 3/4 In, 125 psi

Zoro # G2240621
Mfr # 1740203
product price:  $33.35
/ea
Cash Acme T and P Relief Valve, MNPT x FNPT 16939-0150
Cash Acme

T and P Relief Valve, MNPT x FNPT

Zoro # G2427607
Mfr # 16939-0150
product price:  $113.99
/ea
Watts Pressure Relief Valve, Bronze, 50 psi F274513
Watts

Pressure Relief Valve, Bronze, 50 psi

Zoro # G714702969
Mfr # F274513
product price:  $270.77
/ea
Plast-O-Matic Pressure Relief Valve, 1 In, 5 to 100 psi RVT100V-PV
Plast-O-Matic

Pressure Relief Valve, 1 In, 5 to 100 psi

Zoro # G3997271
Mfr # RVT100V-PV
product price:  $667.99
/ea
Watts Fire Hydrant Relief Valve, 500 GPM 1116FH
Watts

Fire Hydrant Relief Valve, 500 GPM

Zoro # G1303513
Mfr # 1116FH
product price:  $2,201.99
/ea
Dayton Relief Valve, 13 GPM, 3/4 NPT x 3/4 NPT 4KGZ9
Dayton

Relief Valve, 13 GPM, 3/4 NPT x 3/4 NPT

Zoro # G0288924
Mfr # 4KGZ9
product price:  $34.19
/ea
Dayton Relief Valve, 22 GPM, 3/4 NPT x 3/4 NPT 4KHA3
Dayton

Relief Valve, 22 GPM, 3/4 NPT x 3/4 NPT

Zoro # G0377291
Mfr # 4KHA3
product price:  $35.29
/ea
Campbell Nonadjustable Relief Valve, 1/2 In, 75 psi RV2N-LF
Campbell

Nonadjustable Relief Valve, 1/2 In, 75 psi

Zoro # G1533883
Mfr # RV2N-LF
product price:  $13.39
/ea
Relief Valves (2,000+ items)
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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.

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