Best Relief Valves - Buying Guide
Last Updated: 05/26/2024
Share on
As an Amazon Associate we earn a fee from qualifying purchases when you follow a link to Amazon from this page. We rank the products, but the links to Amazon are promotional. #1
Cash Acme 3/4 Inch RV FWL-2 Pressure Relief Valve, Bronze, 150 PSI, 14737-0150
Asin: B0067E4K5E | Model: 14737-0150 | PartNumber: 14737-0150 | Ean: 0697285147379 | UPC: 697285147379
Features
- DESIGN: The NCLX Series relief valves feature a cast bronze body, brass, and stainless steel internal parts, silicone seat disc, and stainless steel pressure spring
- BRONZE BODY: Lead-free and superior reliability
- COMPACT: Pressure reducing and regulating valves
- CERTIFIED: To ASSE standard 1003 and CSA Standard B356; Certified lead free complying with NSF 319
- ASSEMBLED AND TESTED: Prepared in Cash Acme manufacturing plant in Cullman, Alabama
- See more on Amazon...
Compact: Pressure Reducing And Regulating Valves.
Assembled And Tested: Prepared In Cash Acme Manufacturing Plant In Cullman, Alabama.
Certified: To Asse Standard 1003 And Csa Standard B356; Certified Lead Free Complying With Nsf 319.
Bronze Body: Lead-Free And Superior Reliability.
Brand: Cash Acme | Manufacturer: Cash Acme
Dimensions: 4.25 x 1.00 x 1.50 Inches | Weight: 0.49 pounds
See On Amazon #2
Merrill MFG PRVNL75 No Lead Brass Pressure Relief Valve 75 PSI, 3/4"
Asin: B08D3YMKWB | Model: PRVNL75 | PartNumber: PRVNL75 | Ean: 0642367450236 | UPC: 642367450236
Features
- Pressure relief valves are for protection against excessive pressure
- 3/4 in. male NPT x 1/2 in. female FPT
- Lead free brass with stainless steel control springs
- 3/4 Line Connection, 75 PSI
- Not for use with water heaters -Cold water systems only
- See more on Amazon...
Lead Free Brass With Stainless Steel Control Springs.
Not For Use With Water Heaters -Cold Water Systems Only.
3/4" Line Connection, 75 Psi.
3/4 In. Male Npt X 1/2 In. Female Fpt.
Brand: Merrill | Manufacturer: Merrill Manufacturing Company
Dimensions: 1.05 x 2.47 x 1.45 Inches
See On Amazon #3
Watts 0342691 30 PSI Pressure Relief Valve, Bronze, 3/4" 335 M2-030
Asin: B00JG3GCYA | Model: WATTS - 118946 | PartNumber: WATTS - 118946 | Ean: 0098268784190 | UPC: 098268784190
Features
- Female pressure relief valve
- Inlet (in): 3/4
- Outlet (in): 3/4
- BTU: 510,000
- Pressure (psi): 30
- BTU: 510,000
- Inlet (in): 3/4
- Outlet (in): 3/4
- Pressure (psi): 30
- BTU: 510,000
- Inlet (in): 3/4
- Outlet (in): 3/4
- Pressure (psi): 30
- See more on Amazon...
Outlet (In): 3/4.
Btu: 510,000.
Inlet (In): 3/4.
Outlet (In): 3/4.
Pressure (Psi): 30.
Btu: 510,000.
Btu: 510,000.
Pressure (Psi): 30.
Inlet (In): 3/4.
Brand: Watts | Manufacturer: Watts
Dimensions: 1.80 x 3.00 x 2.30 inches | Weight: 0.00 pounds
See On Amazon #4
Watts 0371271 530C 1/2" Poppet Style Adjustable Relief Valve
Asin: B000936L24 | Model: 1/2 530-C | PartNumber: 1/2 530-C | Ean: 0098268018233 | UPC: 098268018233
Features
- Guards against excessive pressure in water, oil or air systems used in commercial, residential or industrial applications, including fire protection systems
- All-brass construction features an NPT threaded male inlet and NPT threaded female (drain) outlet connections; a stainless-steel spring; a brass bonnet; a Buna-N disc and a Buna-N O-ring
- Calibrated adjustment feature sets valve to the required relief pressure
- Maximumpressure is 300 psi (20.67 bar); adjustable range is 50 to 175 psi (3.45 to 12.06 bar)
- Size is 3.8 x 2.3 x 1.5 inches
- See more on Amazon...
Calibrated Adjustment Feature Sets Valve To The Required Relief Pressure.
Size Is 3.8 X 2.3 X 1.5 Inches.
Maximumpressure Is 300 Psi (20.67 Bar); Adjustable Range Is 50 To 175 Psi (3.45 To 12.06 Bar).
All-Brass Construction Features An Npt Threaded Male Inlet And Npt Threaded Female (Drain) Outlet Connections; A Stainless-Steel Spring; A Brass Bonnet; A Buna-N Disc And A Buna-N O-Ring.
Brand: Watts | Manufacturer: Watts
Dimensions: 1.50 x 3.80 x 2.30 inches
See On Amazon #5
HYDRO MASTER Automatic Long Shank Temperature and Pressure Relief Valve with Extension Probe and Lever (Long Shank)
Asin: B0C338ZPQJ | Model: 0572102 | PartNumber: 0572102
Features
- ALL brass body and stainless steel spring for corrosion resistance.
- Factory set at 150 psi Maximum temperature of 210 F
- The primary purpose of a temperature and pressure relief valve is to ensure the safety of pressurized systems by preventing excessive pressure and temperature buildup.
- The temperature and pressure relief valve is designed to automatically release pressure when it exceeds a predetermined set point. This prevents the system from reaching dangerously high pressures that could lead to structural damage or other hazards.
- Temperature and Pressure Relief Valves are used in a wide range of environments, including residential buildings, commercial and industrial facilities, public buildings, and industrial processes.
- Specification Met CSA, ANSI Z21.22
- See more on Amazon...
The Primary Purpose Of A Temperature And Pressure Relief Valve Is To Ensure The Safety Of Pressurized Systems By Preventing Excessive Pressure And Temperature Buildup..
Temperature And Pressure Relief Valves Are Used In A Wide Range Of Environments, Including Residential Buildings, Commercial And Industrial Facilities, Public Buildings, And Industrial Processes..
Specification Met Csa, Ansi Z21.22.
The Temperature And Pressure Relief Valve Is Designed To Automatically Release Pressure When It Exceeds A Predetermined Set Point. This Prevents The System From Reaching Dangerously High Pressures That Could Lead To Structural Damage Or Other Hazards..
Factory Set At 150 Psi，Maximum Temperature Of 210°F.
Brand: HYDRO MASTER | Manufacturer: HYDRO MASTER
Dimensions: 2.40 x 6.40 x 1.70 Inches
See On Amazon #6
Control Devices - CR25-100 -CR25 CR Series Brass Pressure Relief Valve, 0-100 psi Adjustable Pressure Range, 1/4" Male NPT
Asin: B007GDY3CU | Model: CR25-100 | PartNumber: CR25-100 | Ean: 0372657518635 | UPC: 372657518635
Features
- Relief pressure adjustable from 0 to 100 psi
- 1/4 male NPT threaded inlet connection
- Brass construction and stainless steel spring for corrosion resistance
- Silicon O-ring provides leak-proof seal to within 10 percent of set pressure
- Micrometer-style nylon knob for pressure relief adjustment
- See more on Amazon...
Brass Construction And Stainless Steel Spring For Corrosion Resistance.
Micrometer-Style Nylon Knob For Pressure Relief Adjustment.
Silicon O-Ring Provides Leak-Proof Seal To Within 10 Percent Of Set Pressure.
1/4" Male Npt Threaded Inlet Connection.
Brand: Control Devices | Manufacturer: Control Devices
See On Amazon #7
Merrill MFG PRVNL50 1/2" No-Lead Pressure Relief Valve, Brass
Asin: B08GD12QV5 | Model: PRVNL50-A | PartNumber: PRVNL50-A | Ean: 0642367450519 | UPC: 642367450519
Features
- Pressure relief valves are for protection against excessive pressure
- 1/2 in. male NPT x 1/2 in. female FPT
- Lead free brass with stainless steel control springs
- 1/2 Line Connection, 75 PSI
- Not for use with water heaters - Cold water systems only
- See more on Amazon...
Lead Free Brass With Stainless Steel Control Springs.
Not For Use With Water Heaters - Cold Water Systems Only.
1/2" Line Connection, 75 Psi.
1/2 In. Male Npt X 1/2 In. Female Fpt.
Brand: Merrill | Manufacturer: Merrill Manufacturing Company
See On Amazon #8
Merrill MFG PRVNL75100 No Lead Brass Pressure Relief Valve 100 PSI, 3/4"
Asin: B0BJ7MGZRW | Model: PRVNL75100-A | PartNumber: PRVNL75100-A | Ean: 0642367453091 | UPC: 642367453091
Features
- Pressure relief valves are for protection against excessive pressure
- Lead free brass with stainless steel control springs
- 3/4 Line Connection, 100 PSI
- Not for use with water heaters -Cold water systems only
- 3/4 in. male NPT x 1/2 in. female NPT
- See more on Amazon...
3/4" Line Connection, 100 Psi.
3/4 In. Male Npt X 1/2 In. Female Npt.
Not For Use With Water Heaters -Cold Water Systems Only.
Lead Free Brass With Stainless Steel Control Springs.
Brand: Merrill | Manufacturer: Merrill Manufacturing Company
Dimensions: 1.05 x 2.47 x 1.45 inches
See On Amazon #9
4 Pcs 1/4" Male NPT Safety Valve Pressure Relief Valve Air Compressor Check Valve (150 psi Set Pressure)
Asin: B0BFPCLWR5 | Model: PS-Bonuci-630 | PartNumber: PS-Bonuci-630
Features
- Package Includes: you will receive 4 pieces of 1/4 inch NPT threaded pressure relief valve with seal thread locks, enough quantity for your daily use and replacement, providing more convenience for you
- Reliable and Sturdy: made of brass, the NPT threaded air compressor parts have corrosion resistance, high temperature ductility and low magnetic permeability, suitable for discharging air, water and oil from air compressor
- Product Information: the working pressure of safety release valve is 150PSI, the flow is 178 cfm, and the temperature range is from -65 degrees Fahrenheit to +250 degrees Fahrenheit
- Warm Tips: the 1/4 inch brass air pressure release valve for using in high temperature applications up to 250 degrees Fahrenheit, please pay attention to safety when using
- Practical Function: the air compressor pressure valve can reduce overpressure or vacuum in the system; When the pressure in the air compressor box exceeds a preset level, the valve opens, allowing fluid or gas to escape to reduce the pressure; When the pressure drops below the preset level, the valve opens, allowing fluid or gas to be released into the system, then closes when the valve reaches the reset pressure limit
- See more on Amazon...
Product Information: The Working Pressure Of Safety Release Valve Is 150Psi, The Flow Is 178 Cfm, And The Temperature Range Is From -65 Degrees Fahrenheit To +250 Degrees Fahrenheit.
Practical Function: The Air Compressor Pressure Valve Can Reduce Overpressure Or Vacuum In The System; When The Pressure In The Air Compressor Box Exceeds A Preset Level, The Valve Opens, Allowing Fluid Or Gas To Escape To Reduce The Pressure; When The Pressure Drops Below The Preset Level, The Valve Opens, Allowing Fluid Or Gas To Be Released Into The System, Then Closes When The Valve Reaches The Reset Pressure Limit.
Warm Tips: The 1/4 Inch Brass Air Pressure Release Valve For Using In High Temperature Applications Up To 250 Degrees Fahrenheit, Please Pay Attention To Safety When Using.
Reliable And Sturdy: Made Of Brass, The Npt Threaded Air Compressor Parts Have Corrosion Resistance, High Temperature Ductility And Low Magnetic Permeability, Suitable For Discharging Air, Water And Oil From Air Compressor.
Brand: Bonuci | Manufacturer: Bonuci
See On Amazon #10
Watts 0372271 530C 3/4" Poppet Style Adjustable Relief Valve
Asin: B00EZH8AQA | Model: 372271 | PartNumber: 372271 | Ean: 0098268018240 | UPC: 098268018240
Features
- Poppet Style Adjustable Relief Valve
- Watts 3/4 530C Releif Valve
- Boiler relief valve
- Brass construction
- Threaded
- See more on Amazon...
Boiler Relief Valve.
Threaded.
Brass Construction.
Watts 3/4" 530C Releif Valve.
Brand: Watts | Manufacturer: Watts
Dimensions: 1.50 x 3.80 x 2.30 inches | Weight: 0.00 pounds
See On Amazon #11
FOGATTI 100PSI Safety Relief Pressure Release Valve, 2-Port 3/4 Inches, Max Heater Input 200,000BTU/HR, Brass Plumbing Fitting, ANSI Z21.22,
Asin: B0CG2X59N7 | Model: FUSV100A | PartNumber: FUSV100A
Features
- Reliable Safety Our lead-free brass pressure relief valve ensures overpressure protection for your system, with a maximum pressure of 100 PSI.
- Versatile Compatibility 3/4 male NPT inlet for convenient attachment to a female NPT threaded connection.
- Durable and Leak-Free Our pressure relief valve is highly dependable, providing long-lasting performance without water leaks.
- Easy Installation With its 3/4 size and clear instructions, our Relief Valve is easy to install for professionals and DIY enthusiasts.
- Trustworthy and Reliable Exceptional products, rigorous testing, and unwavering reliability. Choose Fogatti, the brand you can trust.
- See more on Amazon...
Durable And Leak-Free—Our Pressure Relief Valve Is Highly Dependable, Providing Long-Lasting Performance Without Water Leaks..
Trustworthy And Reliable—Exceptional Products, Rigorous Testing, And Unwavering Reliability. Choose Fogatti, The Brand You Can Trust..
Easy Installation—With Its 3/4" Size And Clear Instructions, Our Relief Valve Is Easy To Install For Professionals And Diy Enthusiasts..
Versatile Compatibility—3/4" Male Npt Inlet For Convenient Attachment To A Female Npt Threaded Connection..
Brand: FOGATTI | Manufacturer: FOGATTI
Dimensions: 2.00 x 2.00 x 2.00 inches
See On Amazon #12
Cash Acme 3/4 Inch RV VR20 Vacuum Relief Valve Vent with Dust Cover, Bronze, 22398LF
Asin: B08KFHQ276 | Model: 22398LF | PartNumber: 22398LF | Ean: 0697285052307 | UPC: 697285052307
Features
- HOT WATER SUPPLY: Our vacuum relief valve is designed specifically to protect the hot water supply system where over-pressure conditions are likely to occur as a result of thermal expansion
- DOMESTIC AND COMMERCIAL APPLICATIONS: Can be used for both domestic household and commercial job site applications
- COMPLETELY AUTOMATIC: The VR20 Vacuum Relief Valve reseals after pressure relief
- INSTALLATION: The valve may be installed directly on the tank or in a tee and is appropriate for either side (hot or cold) of the water heater
- PRODUCT SPECIFACTIONS: Fitted with a bronze body and has a stainless steel internal part, silicone seat disc and stainless steel pressure spring
- See more on Amazon...
Completely Automatic: The Vr20 Vacuum Relief Valve Reseals After Pressure Relief.
Product Specifactions: Fitted With A Bronze Body And Has A Stainless Steel Internal Part, Silicone Seat Disc And Stainless Steel Pressure Spring.
Installation: The Valve May Be Installed Directly On The Tank Or In A Tee And Is Appropriate For Either Side (Hot Or Cold) Of The Water Heater.
Domestic And Commercial Applications: Can Be Used For Both Domestic Household And Commercial Job Site Applications.
Brand: Cash Acme | Manufacturer: Cash Acme
Dimensions: 2.25 x 1.25 x 1.25 Inches
See On Amazon #13
VAV Pressure Relief Valve, 3/4" Thread, 150 PSI, 210F Max, Relief Valve Made of Lead-free Copper, CSA LISTED
Asin: B0BKSK39HC | Model: RXZER650 | PartNumber: RXZER650
Features
- Wide application: Thread is 3/4NPT, safe and leak-free.
- Material: lead-free copper design, stainless steel spring, durable, corrosion-resistant use for a longer period of time.
- Maximum heat input value: 205 000 BTU/HR
- Convenient and easy to install
- One year warranty: If you have any questions, please contact us by email.
- See more on Amazon...
Maximum Heat Input Value: 205 000 Btu/Hr.
One Year Warranty: If You Have Any Questions, Please Contact Us By Email..
Convenient And Easy To Install.
Material: Lead-Free Copper Design, Stainless Steel Spring, Durable, Corrosion-Resistant Use For A Longer Period Of Time..
Brand: VAV | Manufacturer: VAV
Dimensions: 5.00 x 7.00 x 6.00 inches
See On Amazon #14
FOGATTI Temperature and Pressure Relief Valve 3/4" NPT Threaded, 210 F 150PSI with 4" Probe for Water Heaters and Hot Water Storage Tanks
Asin: B0CJ2YVB3V | Model: HTU-FSTPRV150A-F31 | PartNumber: HTU-FSTPRV150A-F31
Features
- Thread Size: 3/4" male NPT threaded inlet.
- 150PSI Max. Pressure Maximum temperature setting is 210 (For pressure relief.)
- Wide Compatibility: With the most common thread sizes, this T&P valve has the most common thread sizes and is suitable for many brands of tank water heaters as well as mini-tank electric water heaters.
- Lead Free: Brass body and stainless-steel spring, and it has obtained ANSI Z21.22 lead-free certification.
- 24-Hour Uninterrupted Service: Fogatti is a professional RV and mobile home appliance brand located in Elkhart. We provide a 24-hour uninterrupted customer service to ensure your reasonable needs are met.
- See more on Amazon...
Wide Compatibility: With The Most Common Thread Sizes, This T&P Valve Has The Most Common Thread Sizes And Is Suitable For Many Brands Of Tank Water Heaters As Well As Mini-Tank Electric Water Heaters..
24-Hour Uninterrupted Service: Fogatti Is A Professional Rv And Mobile Home Appliance Brand Located In Elkhart. We Provide A 24-Hour Uninterrupted Customer Service To Ensure Your Reasonable Needs Are Met..
Lead Free: Brass Body And Stainless-Steel Spring, And It Has Obtained Ansi Z21.22 Lead-Free Certification..
150Psi Max. Pressure， Maximum Temperature Setting Is 210℉ (For Pressure Relief.).
Brand: FOGATTI | Manufacturer: FOGATTI
Dimensions: 7.00 x 2.00 x 2.00 inches
See On Amazon #15
Zurn 12-P1500XL - 1/2" Pressure Relief Valve
Asin: B07PY4R48D | Model: 12-P1500XL | PartNumber: 12-P1500XL | Ean: 0612052224541, 0612052225012 | UPC: 612052225012, 612052224541
Features
- 1/2" Pressure Relief Valve
- Perfect For Thermal Expansion Relief
- Calibrated Adjustments From 25 To 175 Psi
- Color: Gold
- See more on Amazon...
Calibrated Adjustments From 25 To 175 Psi.
Color: Gold.
Perfect For Thermal Expansion Relief.
Brand: Zurn | Manufacturer: Zurn Industries
Dimensions: 3.10 x 2.10 x 1.20 inches
See On Amazon #16
Watts Regulator 0342692 Boiler Relief Valve 3/4" 30Psi, No Size, bronz
Asin: B00GP6R7PY | Model: WATTS - 118951 | PartNumber: WATTS - 118951 | Ean: 0098268784206 | UPC: 098268784206
Boiler Relief Valve 3/4" 30Psi.
Brand: Watts | Manufacturer: Watts Store
Dimensions: 2.00 x 3.10 x 2.30 Inches | Weight: 0.00 pounds
See On Amazon #17
Cash Acme 3/4 Inch NCLX-5L Temperature and Pressure Relief Valve, Push to Connect Brass Plumbing Fittings, Copper, CPVC Pipe, 150 PSI, 18821-0150
Asin: B01ARE42I4 | Model: 18821 0150 | PartNumber: 18821 0150 | Ean: 0697285188211 | UPC: 697285188211
Features
- CASH ACME RELIEF VALVE: Cash Acme NCLX Combination Temperature and Pressure Relief Valves are designed for the protection of water heaters and storage tanks; incorporate an inert thermal element coating that provides effective isolation from mineral deposits (liming) and galvanic corrosion
- DESIGN: The NCLX Series relief valves feature a cast bronze body, brass, and stainless steel internal parts, silicone seat disc, and stainless steel pressure spring
- COMPACT: Pressure-reducing and regulating valves
- SPECS: NCLX Valves come with standard factory settings of 150 PSI for pressure relief and 210 degrees F for temperature relief
- CERTIFIED: The NCLX Temperature and Pressure Relief Valve is certified to be lead-free in accordance with NSF 319; compliant with ASSE standard 1003 and CSA standard B358
- See more on Amazon...
Compact: Pressure-Reducing And Regulating Valves.
Certified: The Nclx Temperature And Pressure Relief Valve Is Certified To Be Lead-Free In Accordance With Nsf 319; Compliant With Asse Standard 1003 And Csa Standard B358.
Specs: Nclx Valves Come With Standard Factory Settings Of 150 Psi For Pressure Relief And 210 Degrees F For Temperature Relief.
Design: The Nclx Series Relief Valves Feature A Cast Bronze Body, Brass, And Stainless Steel Internal Parts, Silicone Seat Disc, And Stainless Steel Pressure Spring.
Brand: Cash Acme | Manufacturer: Cash Acme
Dimensions: 1.50 x 8.00 x 2.00 inches | Weight: 0.55 pounds
See On Amazon #18
Apollo Valve 10-400 Series Bronze Safety Relief Valve, ASME Hot Water, 50 psi Set Pressure, 3/4" NPT Male x Female
Asin: B008835SVW | Model: 1041710 | PartNumber: 1041710 | Ean: 0670750459795 | UPC: 670750459795
Features
- Relief pressure preset of 50 psi for releasing excess pressure
- 3/4 male NPT threaded inlet for connecting to a female NPT threaded connection
- ASTM B584 bronze body and nozzle and stainless steel spring for corrosion resistance
- 250 degrees F maximum temperature for use in high-temperature applications
- ASME safety rated for Section IV water heating systems
- See more on Amazon...
Astm B584 Bronze Body And Nozzle And Stainless Steel Spring For Corrosion Resistance.
Asme Safety Rated For Section Iv Water Heating Systems.
250 Degrees F Maximum Temperature For Use In High-Temperature Applications.
3/4" Male Npt Threaded Inlet For Connecting To A Female Npt Threaded Connection.
Brand: Apollo | Manufacturer: Conbraco
See On Amazon #19
Watts Sea 66100 100XL-4 3/4" 150 Psi 100Xl-4 T & P Relief Valve
Asin: B002QYIRN0 | Model: 66100 100XL-4 | PartNumber: 66100 100XL-4 | Ean: 0098268000016 | UPC: 098268000016
Brand: Watts | Manufacturer: Watts Sea
Dimensions: 1.00 x 1.00 x 1.00 inches | Weight: 0.30 Pounds
Warranty: Warranty
See On Amazon #20
IrrigationKing RKP-2 Pressure Relief Valve 22-80 PSI Orange Cover, 2"
Asin: B075QFJPRN | Model: RKP-2 | PartNumber: RKP-2 | Ean: 0810256030726 | UPC: 810256030726
Features
- Provides pressure surge protection for irrigation systems
- Adjustable pressure setting maximizes performance for individual applications
- High-strength cast aluminum body and stainless steel shaft offer strength and corrosion resistance
- See more on Amazon...
High-Strength Cast Aluminum Body And Stainless Steel Shaft Offer Strength And Corrosion Resistance.
Adjustable Pressure Setting Maximizes Performance For Individual Applications.
First Available: 09/18/2017
Brand: IrrigationKing | Manufacturer: IrrigationKing
Weight: 4.19 pounds
See On Amazon
Looking For Something Else?
Search