Featured Categories

  • Tools & Machining
  • Shipping, Packaging & Office Supplies
  • Plumbing
  • Safety

Shop Categories

  • Abrasives & Polishers
  • Adhesives & Tapes
  • Electrical Supplies
  • Electronics
  • Fasteners
  • Food Service & Restaurant Supplies
  • Furniture, Linens & Decor
  • Grounds & Outdoor
  • Hardware & Building Materials
  • Heating & Cooling
  • Janitorial & Cleaning Supplies
  • Lab Equipment & Supplies
  • Lighting
  • Material Handling
  • Medical & Personal Care
  • Paint, Coatings & Supplies
  • Plumbing
  • Power Transmission
  • Pumps
  • Raw Materials
  • Safety
  • Shipping, Packaging & Office Supplies
  • Storage & Workspace
  • Test Instruments & Gauges
  • Tools & Machining
  • Vehicle Maintenance
  • Welding, Soldering & Brazing
  • About Us
  • Deals
  • Contact Us
Added to Cart
Skip to Main Content Accessibility Statement
FREE SHIPPING on orders over $50 after you . Restrictions Apply
Zoro Homepage
Close icon
Clipboard Icon Clipboard Icon Quick Order
User Headset Icon User Headset Icon Customer Service
0
0
Cart
  • Low prices on everyday needs. Shop Zoro Select
  • Don't miss these limited time offers. Shop All Deals
  • Get 30 days to pay with Net 30. Apply Now
  1. Home
  2. /
  3. Plumbing
  4. /
  5. Pipes, Valves & Fittings
  6. /
  7. Valves
  8. /
  9. Relief Valves

Relief Valves (2,000+ items) - Page 27

Aquatrol Sfty Valve, 75 psi, 1 MNPT x 1 FNPT Series 742EG1M2J1-75
Aquatrol

Sfty Valve, 75 psi, 1 MNPT x 1 FNPT Series

Zoro # G6984378
Mfr # 742EG1M2J1-75
product price:  $855.99
/ea
Apollo Valves VLV, REL, D ORI, 3/4X3/4,511SER (BRZ, 50PSI, UV LIQUID) 511DDDJMAA0050
Apollo Valves

VLV, REL, D ORI, 3/4X3/4,511SER (BRZ, 50PSI, UV LIQUID)

Zoro # G522711566
Mfr # 511DDDJMAA0050
product price:  $405.99
/ea
A.R. North America Relief Valve, 8,100 psi, Brass SVL50
A.R. North America

Relief Valve, 8,100 psi, Brass

Zoro # G023522517
Mfr # SVL50
product price:  $308.99
/ea
Maxitrol 210J-4" 4" Flanged Gas Pressure 210J-4"
Maxitrol

210J-4" 4" Flanged Gas Pressure

Zoro # G7045684
Mfr # 210J-4"
product price:  $3,086.99
/ea
Spence Dir. Acting Temp. Reg., 1-1/4 In, 40 psi 2010TF-GQD
Spence

Dir. Acting Temp. Reg., 1-1/4 In, 40 psi

Zoro # G3158714
Mfr # 2010TF-GQD
product price:  $2,148.99
/ea
Aquatrol Sft Vl, 450 psi, 1 1/4 MNPTx1 1/2 FNPT SRS 743FH1M2J1-450
Aquatrol

Sft Vl, 450 psi, 1 1/4 MNPTx1 1/2 FNPT SRS

Zoro # G6986688
Mfr # 743FH1M2J1-450
product price:  $1,623.99
/ea
Apollo Valves VLV, REL, 3/4in, 10-417, 45PSI, BRZ 1041709
Apollo Valves

VLV, REL, 3/4in, 10-417, 45PSI, BRZ

Zoro # G022711172
Mfr # 1041709
product price:  $36.15
/ea
Aquatrol Sfty Vl, 75 psi, 1 1/4 MNPTx1 1/2 FNPT SRS 742FH1M1K1-75
Aquatrol

Sfty Vl, 75 psi, 1 1/4 MNPTx1 1/2 FNPT SRS

Zoro # G6983459
Mfr # 742FH1M1K1-75
product price:  $1,160.99
/ea
Gentec HP Low Flow Regulator, CGA-660 , Inlet  0 to 100 PSI, Relief Valve, Use with: Surlfur Dioxide R13BGT-DIK-C660-01
Gentec

HP Low Flow Regulator, CGA-660 , Inlet 0 to 100 PSI, Relief Valve, Use with: Surlfur Dioxide

Zoro # G009978413
Mfr # R13BGT-DIK-C660-01
product price:  $292.99
/ea
Gentec HP Low Flow Regulator, CGA-580 , Inlet  0 to 150 PSI, Relief Valve, Use with: IN Ar, He, N2 R13BGT-DHK-C580-01
Gentec

HP Low Flow Regulator, CGA-580 , Inlet 0 to 150 PSI, Relief Valve, Use with: IN Ar, He, N2

Zoro # G309978427
Mfr # R13BGT-DHK-C580-01
product price:  $284.99
/ea
Aquatrol Sfty Vlv, 225 psi, 1 MNPT x 1 FNPT Series 743DG1M2J1-225
Aquatrol

Sfty Vlv, 225 psi, 1 MNPT x 1 FNPT Series

Zoro # G6986067
Mfr # 743DG1M2J1-225
product price:  $1,073.99
/ea
Apollo Valves VLV, REL, 1-1/2G1-1/2, 19K, PFA (150PSI, BRZ, V STEAM) 19KGGA150
Apollo Valves

VLV, REL, 1-1/2G1-1/2, 19K, PFA (150PSI, BRZ, V STEAM)

Zoro # G922712743
Mfr # 19KGGA150
product price:  $556.99
/ea
Aquatrol Sfty Vlv, 100 psi, 1/2 MNPT x 3/4 FNPT SRS 742DC1M1K1-100
Aquatrol

Sfty Vlv, 100 psi, 1/2 MNPT x 3/4 FNPT SRS

Zoro # G6982838
Mfr # 742DC1M1K1-100
product price:  $551.99
/ea
Apollo Valves VLV, REL, 1-1/2J2-1/2, 119SER, (15PSI, CI, FLGXFNPT) 119JGCLMAA0015
Apollo Valves

VLV, REL, 1-1/2J2-1/2, 119SER, (15PSI, CI, FLGXFNPT)

Zoro # G622710582
Mfr # 119JGCLMAA0015
product price:  $2,771.99
/ea
Apollo Valves VLV, REL, 1X1.25in, 160PSI, BRZ 1061536
Apollo Valves

VLV, REL, 1X1.25in, 160PSI, BRZ

Zoro # G222710883
Mfr # 1061536
product price:  $343.99
/ea
Aquatrol Safety Valve, 175 psi, 2 MNPT x 2 1/2 FNPT 560JH1M1A1-175
Aquatrol

Safety Valve, 175 psi, 2 MNPT x 2 1/2 FNPT

Zoro # G6988112
Mfr # 560JH1M1A1-175
product price:  $532.99
/ea
Aquatrol Safety Valve, 50 psi, 3/4 MNPT x 1 FNPT 560ED1M1A1-50
Aquatrol

Safety Valve, 50 psi, 3/4 MNPT x 1 FNPT

Zoro # G6987360
Mfr # 560ED1M1A1-50
product price:  $212.99
/ea
Watts valve, 150#, 1.5in, 3.45mbh, 210F 340X-8 150-FS
Watts

valve, 150#, 1.5in, 3.45mbh, 210F

Zoro # G315278030
Mfr # 340X-8 150-FS
product price:  $5,196.99
/ea
Aquatrol Sfty Vlve 75 psi, 3/4 MNPT x 1 FNPT Sries 742EC1M1K1-75
Aquatrol

Sfty Vlve 75 psi, 3/4 MNPT x 1 FNPT Sries

Zoro # G6983127
Mfr # 742EC1M1K1-75
product price:  $815.99
/ea
Aquatrol Sfty Vl, 75 psi, 1 1/4 MNPTx1 1/2 FNPT SRS 743FH1M2J1-75
Aquatrol

Sfty Vl, 75 psi, 1 1/4 MNPTx1 1/2 FNPT SRS

Zoro # G6986627
Mfr # 743FH1M2J1-75
product price:  $1,600.99
/ea
Aquatrol Sfty Vlv, 150 psi, 1/2 MNPTx3/4 FNPT Sries 741DC1M2J1-150
Aquatrol

Sfty Vlv, 150 psi, 1/2 MNPTx3/4 FNPT Sries

Zoro # G6981803
Mfr # 741DC1M2J1-150
product price:  $335.99
/ea
Gentec HP Regulator, CGA-540, Inlet  0 to 100 PSI, Needle Valve, Relief Valve, Use with: Oxygen HP152T-DIK-C540-01-NR
Gentec

HP Regulator, CGA-540, Inlet 0 to 100 PSI, Needle Valve, Relief Valve, Use with: Oxygen

Zoro # G209978312
Mfr # HP152T-DIK-C540-01-NR
product price:  $300.99
/ea
Aquatrol Safety Valve, 150 psi, 1/2 MNPT x 3/4 FNPT 560DC1M1A1-150
Aquatrol

Safety Valve, 150 psi, 1/2 MNPT x 3/4 FNPT

Zoro # G6987047
Mfr # 560DC1M1A1-150
product price:  $192.99
/ea
Aquatrol Sfty Vlv, 75 psi, 1 1/4 MNPT x 1 1/2 FNPT 570GF1M1K1-75
Aquatrol

Sfty Vlv, 75 psi, 1 1/4 MNPT x 1 1/2 FNPT

Zoro # G6989092
Mfr # 570GF1M1K1-75
product price:  $313.99
/ea
Aquatrol Sfty Valve, 100 psi, 1 1/4 x 1 1/2 Series 741FH1M1K1-100
Aquatrol

Sfty Valve, 100 psi, 1 1/4 x 1 1/2 Series

Zoro # G6981331
Mfr # 741FH1M1K1-100
product price:  $667.99
/ea
Honeywell Kromschroder VAN2T-/NQ KS88030705
Honeywell Kromschroder

VAN2T-/NQ

Zoro # G215409640
Mfr # KS88030705
product price:  $1,044.99
/ea
Aquatrol Safety Valve, 50 psi, 1 MNPT x 1 FNPT 570EE1M1K1-50
Aquatrol

Safety Valve, 50 psi, 1 MNPT x 1 FNPT

Zoro # G6988718
Mfr # 570EE1M1K1-50
product price:  $234.99
/ea
Aquatrol Sfty Vlv, 225 psi, 2 MNPT x 2 1/2 FNPT SRS 742HJ1M1K1-225
Aquatrol

Sfty Vlv, 225 psi, 2 MNPT x 2 1/2 FNPT SRS

Zoro # G6983809
Mfr # 742HJ1M1K1-225
product price:  $2,167.99
/ea
Aquatrol Safety Valve, 50 psi, 1 x 1 Series 741EG1M2J1-50
Aquatrol

Safety Valve, 50 psi, 1 x 1 Series

Zoro # G6982180
Mfr # 741EG1M2J1-50
product price:  $481.99
/ea
Conbraco 3/4 in. M X 3/4 in. F 1.5 in. ELE 95,000 18C-402-27
Conbraco

3/4 in. M X 3/4 in. F 1.5 in. ELE 95,000

Zoro # G109236338
Mfr # 18C-402-27
product price:  $69.89
/ea
Conbraco Steam Relief Valve 19KFEA30
Conbraco

Steam Relief Valve

Zoro # G715222916
Mfr # 19KFEA30
product price:  $584.99
/ea
Aquatrol Safety Valve, 175 psi, 2 MNPT x 2 FNPT 560HH1M1A1-175
Aquatrol

Safety Valve, 175 psi, 2 MNPT x 2 FNPT

Zoro # G6988051
Mfr # 560HH1M1A1-175
product price:  $473.99
/ea
Johnson Controls Valve 3/4", Pdtc, 7.3Cv W/Va-8020 VG7241LS+8020G
Johnson Controls

Valve 3/4", Pdtc, 7.3Cv W/Va-8020

Zoro # G3221887
Mfr # VG7241LS+8020G
product price:  $617.99
/ea
Apollo Valves VLV, REL, 3/4in, 50PSI, POL CR, (SPL TAG) 10322P50T
Apollo Valves

VLV, REL, 3/4in, 50PSI, POL CR, (SPL TAG)

Zoro # G422710966
Mfr # 10322P50T
product price:  $228.99
/ea
Aquatrol Sfty Vlv, 25 psi, 3/4 MNPT x 1 FNPT Series 743EC1M1K1-25
Aquatrol

Sfty Vlv, 25 psi, 3/4 MNPT x 1 FNPT Series

Zoro # G6985227
Mfr # 743EC1M1K1-25
product price:  $1,189.99
/ea
Cash Valve Pressure Relief Valve, 1-1/4 In, 400 psi K10FWA01-E4-0400
Cash Valve

Pressure Relief Valve, 1-1/4 In, 400 psi

Zoro # G2526736
Mfr # K10FWA01-E4-0400
product price:  $1,264.99
/ea
Relief Valves (2,000+ items) - Page 27
  • First
  • Previous
  • 27
    of 62 pages
  • Next
  • Last
How was your search?

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 ValvesSolenoid ValvesValve PartsPVC Pipe Fittings
Black Pipe FittingsPush-to-Connect Tube FittingsStainless Steel Pipe FittingsCopper FittingsBrass Pipe Fittings
valve vacuum reliefaquatrol adjustable relief valve2" steam valveasme relief valverelief vavle
valve reliefpresure relief valve75 psi relief valvehayward back pressure valveplast-o-matic 2" ball valve

Sign up and save

Take 10% off your next order when you sign up for Zoro emails. Subscribe now to receive your promo code via email.

Follow us

  • Facebook
  • YouTube
  • LinkedIn
  • Instagram
Every part plays a part

Information

  • About Us
  • Accessibility
  • Careers
  • Inclusion
  • Giving Back
  • Resource Hub
  • Returns
  • Shipping

Shopping

  • Brands
  • Collections
  • My Account
  • Payments
  • Deals
  • Sitemap
  • Track My Order

Services

  • Customer Service
  • FAQs
  • Net 30 Terms
  • Reseller Program
  • Sell on Zoro
  • Participate in Research
  • Tax Exemption

Zoro, Inc

Connect

Customer service from real people

  • Phone: (855) 289-9676
  • Contact Us

© 2011-2026 Zoro Tools, Inc. All rights reserved.
  • Terms & Conditions
  • Terms of Access
  • Privacy Policy
Zoro, Inc