Product Description
The WATTS 0274428 pressure relief valve is designed for hot water heating and domestic supply boiler applications. It protects against excessive pressures with its bronze body construction, FNPT connections, and non-metallic disc-to-metal seating. The valve resists corrosion, sticking, and freezing, preventing sediment from being trapped in the seat. Designed for emergency safety relief.
- Seat located above drain prevents water and sediment from fouling the seat.
- Non-mechanical seat-to-disc alignment prevents sticking or freezing.
- Water seal isolates spring working parts from water during relief.
Product Highlights
This pressure relief valve is ideal for use in hot water heating and domestic water supply boiler applications.
Product Information
Standard Information
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Brand: WATTS
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Manufacturer Part Number: 0274428
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Country of Origin: United States
Technical Specifications
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Media: Water
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Series: 174A-030
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Manufacturer: Watts Water Technologies
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Nominal Size: 3/4 in
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Body Material: Bronze
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Pressure Rating: 30 psi
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Temperature Rating: 250 deg F
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Product Type: Relief Valve
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Model Number: 174A-030
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Product Category: PVF
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Type of Material: Bronze
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Handle Operator Type: Test Lever Handle
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Handle Material: Stainless Steel
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Industry Standards: Tested And Rated By The National Board of Boiler And Pressure Vessel Inspectors To The Requirement Of ASME, Meets Military Spec. MIL-V-18634B, Type I, Class 3A, Style A
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Lead Free: No
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Steam Pressure Discharge Capacity: 650000 BTU/HR
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Connection Type: Female
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Material: Bronze
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Pressure_Range: 30 to 150 PSI
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Connection_Size: 3/4"
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Connection_Type: Female Threaded
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Application: Heating
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Thread Type: Female
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Pressure Set Point: 30 psi
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Temperature Range (F): 2500F Max
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Capacity: 650000 BTU/hr
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Brand: Watts
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Buy American Act Compliant: YES
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Inlet Connection Size: 3/4 IN
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Inlet Connection Type: Female Threaded
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Inlet Thread Type: NPT
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Outlet Connection Size: 3/4 IN
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Outlet Connection Type: Female Threaded
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Outlet Thread Type: NPT
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Part Number: 0274428
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Pressure Relief Setting-PSI: 30
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Series/Model: Series 174A/M3
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End Style: FNPT
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Set Pressure: 30 psi
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Domestic/Import: Domestic
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ASME: Yes
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MPN: 0274428
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UPC: Does not apply
