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We’ve ranked and reviewed the top 20 best boiler safety valve, enabling you to track prices across multiple websites and compare in-store or online options.
Best Boiler Safety Valve Comparison 2023
Bestseller No. 1 
Apollo Valve 10-400 Series Bronze Safety Relief Valve, ASME Hot Water, 50 psi Set Pressure, 3/4" NPT Male x Female
- 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
SaleBestseller No. 2 
Apollo Valve 10-400 Series Bronze Safety Relief Valve, ASME Hot Water, 30 psi Set Pressure, 3/4" NPT Female
- Relief pressure preset of 30 psi for releasing excess pressure
- 3/4" female NPT threaded inlet for connecting to a male NPT 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
SaleBestseller No. 3
Apollo Valve 10-400 Series Bronze Safety Relief Valve, ASME Hot Water, 30 psi Set Pressure, 3/4" NPT Male x Female - 1040705
- Relief pressure preset of 30 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
Bestseller No. 4 
Cash Acme 3/4 Inch F-30 Safety Relief Pressure Release Valve, Brass Plumbing Fitting, 20166-0030
- CONSTRUCTION: Brass body for durability
- DIMENSIONS: 3/4-inch threaded male inlet x 3/4-inch threaded female outlet
- PRESSURE: 30 PSI set pressure
- USE: Designed for use on hot water service only - heating boilers, water supply heaters and storage tanks; not for use on steam
- HIGH QUALITY: SharkBite's quality and performance is field-proven with more than 550 million connections; SharkBite is the only push-to-connect brand that can ensure clean, leak-free connections
Bestseller No. 5 
Wilesco 10 steam Engine D10, 155 ml Boiler Contents, Including Safety Valve and Whistle-Pipe
- Model Number: 10
- Package Dimensions : 27.0L x 20.5W x 16.0H (centimeters)
- Package Weight: 10 grams
- Item Package Quantity: 1
SaleBestseller No. 6 
Relief Valve: The Plumber's Mate Mysteries, Book 2
- Audible Audiobook
- J. L. Merrow (Author) - Phillip Humphries (Narrator)
- English (Publication Language)
- 12/05/2020 (Publication Date) - Riptide Publishing (Publisher)
Bestseller No. 7 
Making Model Steam Boats
- Bodiley, Stephen (Author)
- English (Publication Language)
- 176 Pages - 05/01/2023 (Publication Date) - Crowood Press (Publisher)
Bestseller No. 8 
Bialetti - Moka Express: Iconic Stovetop Espresso Maker, Makes Real Italian Coffee, Moka Pot 9 Cups (14 Oz - 420 Ml), Aluminium, Silver
- Note: 1)Too coarse a grind, too little coffee, or insufficiently tamping the grounds before brewing can all lead to inadequate pressure for a proper brew. 2)It is important to note that the amount of espresso extracted will vary depending on the grind size and amount and reprogramming may be needed when the size and amount are adjusted
- The original moka coffee pot: Moka Express is the original stovetop espresso maker, it provides the experience of the real Italian way of preparing a tasteful coffee, its unique shape and the inimitable gentleman with moustache date back to 1933, when Alfonso Bialetti invented it.
- Made in Italy: it is Made in Italy and its quality is enhanced by the patented safety valve which makes it easy to clean and its ergonomic handle, available in many sizes and suitable for gas, electric and induction (with the Bialetti induction adapter plate)
- How to prepare the coffee: fill the boiler up to the safety valve, fill it up with ground coffee without pressing, close the moka pot and place it on the stovetop, as soon as Moka Express starts to gurgle, turn the fire off and coffee will be ready
- One size for each need: Moka Express sizes are measured in Espresso Cups, coffee can be enjoyed in Espresso Cups or in larger containers
Bestseller No. 9 
Takagi T-H3-DV-N Condensing High Efficiency Natural Gas Indoor Tankless Water Heater, 10-Gallon Per Minute, 199,000 BTU
- Endless hot water, On-demand usage, Compact, Space saving, Energy conservation
- Computerized safety features, No pilot light to have to worry about
- Safety features include freeze, overheat, surge protection, and troubleshooting diagnostic codes
- Satisfies the 2012 SCAQMD Rule 1146.2 for Ultra-Low NOx Emissions
- Primary heat exchanger utilizes commercial-grade copper alloy for 25 times better heat transfer than stainless steel, Integrated controls and power cord as standard features
Bestseller No. 10 
Hydro Smart 30 PSI Pressure Relief Valve, 3/4", NSF, CSA, ASME
- 30 PSI Relief Valve
- 419,000 BTU/HR
- Automatic Reseating Pressure Only Safety Relief Valve
- 3/4" Male Inlet and Female Outlet
Bestseller No. 11 
WATTS SB1156F Boiler Pressure Relief Valve
- Designed To Work Effectively
- Convenient And Easy To Use
- Durable And Long Lasting
- Brand Name: Watts
Bestseller No. 12 
Watts 0342691 30 PSI Pressure Relief Valve, Bronze, 3/4" 335 M2-030
- Female pressure relief valve
- Inlet (in): 3/4
- Outlet (in): 3/4
- BTU: 510,000
- Inlet (in): 3/4
SaleBestseller No. 13 
Watts Regulator 0342692 Boiler Relief Valve 3/4" 30Psi, bronz
- Brand: Watts Regulator
- Part Number: 0342692
- Boiler Relief Valve 3/4" 30Psi
Bestseller No. 14 
A Summer Escape and Strawberry Cake at the Cosy Kettle: A feel good, laugh out loud romantic comedy
- Eeles, Liz (Author)
- English (Publication Language)
- 302 Pages - 06/27/2019 (Publication Date) - Bookouture (Publisher)
Bestseller No. 15 
The Escape Room: A Novel
- Amazon Kindle Edition
- Goldin, Megan (Author)
- English (Publication Language)
- 377 Pages - 07/30/2019 (Publication Date) - St. Martin's Press (Publisher)
Bestseller No. 16 
Apollo Valve 10-600 Series Bronze Safety Relief Valve, ASME Hot Water, 50 psi Set Pressure, 1-1/2" x 2" NPT Female
- Relief pressure preset of 50 psi for releasing excess pressure
- 1-1/2" female NPT threaded inlet for connecting to a male NPT threaded connection
- Bronze body and spring cage for corrosion resistance
- 250 degrees F maximum temperature for use in high-temperature applications
- ASME safety rated for Section IV heating boilers
Bestseller No. 17 
Watts Brass & Tubular 374A 3/4 Boiler Relief Valve
- Protects hot water space heating boilers Compact construction, produces exceptionally high capacity Protects boiler installations up to 550,000 Btu/hr at 30 lb
- This product adds a great value
- This product is manufactured in United States
Bestseller No. 18 
Watts Regulator 174A Bronze 2-Port 3/4" Boiler Pressure Relief Valve, 40 psi
- Boiler pressure relief valves are used in hot water heating and domestic supply boiler applications to protect against excessive pressures on all types of hot water heating supply boiler equipment
- It consists of a bronze body construction with NPT threaded female inlet and NPT threaded female outlet (drain) connections, non-metallic disc-to-metal seating, stainless steel spring and test lever
- Series 174A resists corrosive water conditions, sticking and freezing and prevents water and sediment from being trapped in the seat
- It is designed for emergency safety relief and shall not be used as an operating control
- For pressure protection of hot water heating boilers
Bestseller No. 19 
Rheem SP12574 Temperature and Pressure Relief Valve,Small
- Size: Small.For best results, use only Rheem replacement parts for repairing your Rheem Water Heater
- Maximum Temperature Setting (Deg. F): 210, Maximum Pressure Setting (psi): 150, CSA Capacity (BTU/HR): 105,000, Inlet Thread Size - NPT (in.): 3/4
- Outlet Thread Size - NPT (in.): 3/4, Overall Length (in.): 7-1/4, Body Length (in.): 3-1/4, Sensor Length (in.): 4
- Kits which contain this part: 45W613
Bestseller No. 20 
Apollo Valve 14-200 Series Bronze Safety Relief Valve, ASME Steam, 15 psi Set Pressure, 2" NPT Male x Female
- Relief pressure preset of 15 psi for releasing excess pressure
- 2" male NPT threaded inlet for connecting to a female NPT threaded connection
- Cast bronze body and steel spring for corrosion resistance
- Flat seat, PTFE-faced disc for positive seal
- ASME safety rated for Section IV heating boilers
Editor’s Notes
We ranked and reviewed the top 20 Best boiler safety valve in 2023. With the support of 98436 customer’s reviews, we hope that this article can give you the most realistic view of these products.
