Watts 0275464 Valve
Professional-grade Watts 0275464, a high-capacity Series 174A boiler pressure relief valve, is engineered for critical overpressure protection in large-scale hot water heating and domestic supply systems. Constructed with a heavy-duty bronze body and a rugged stainless steel spring, this 1-inch NPT valve is factory-set to a 150 psi pressure relief setting and delivers a high-volume discharge capacity of 3,795,000 BTU/hr. The 174A series utilizes a non-mechanical seat-to-disc alignment that prevents sticking or freezing, ensuring reliable emergency activation when system pressures exceed safe limits. Its design incorporates an above-drain seat to prevent the accumulation of sediment or water, which can foul critical sealing surfaces. This ASME rated relief valve is built for longevity in demanding commercial and industrial hydronic applications, featuring an angle pattern configuration with female threaded NPT inlet and outlet connections. It handles maximum operating temperatures up to 250°F and is specialized for non-potable water systems, offering veteran contractors a durable solution for high-static pressure boiler environments.
- Maximum Discharge Capacity: Rated for 3,795,000 BTU/hr to accommodate high-output commercial boilers.
- Corrosion Resistance: Durable bronze construction and stainless steel internals resist harsh water conditions.
- Reliable Seating: Non-metallic disc-to-metal seating designed to prevent sticking after long periods of inactivity.
- Self-Cleaning Design: Seat orientation prevents sediment entrapment, reducing the risk of valve failure.
- Field Testing: Includes a manual test lever for regular maintenance and operational verification.
Common Questions:
Can this valve be used for potable water systems?
This specific model does not comply with the Lead Free requirements of the Safe Drinking Water Act and is intended for non-potable hot water heating and space heating applications.
What is the relief capacity at different pressure settings?
The 174A series offers a range of ratings, but at this 150 psi setpoint, it is specifically rated for 3,795,000 BTU/hr to protect against excessive thermal expansion and pressure spikes.
How do I ensure the valve does not leak after testing?
The automatic reseating mechanism and non-mechanical alignment are built for a tight seal, but ensuring the discharge line is clear of debris is essential for proper reseating after the test lever is released.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
Original: $698.03
-65%$698.03
$244.31Watts 0275464 Valve
Professional-grade Watts 0275464, a high-capacity Series 174A boiler pressure relief valve, is engineered for critical overpressure protection in large-scale hot water heating and domestic supply systems. Constructed with a heavy-duty bronze body and a rugged stainless steel spring, this 1-inch NPT valve is factory-set to a 150 psi pressure relief setting and delivers a high-volume discharge capacity of 3,795,000 BTU/hr. The 174A series utilizes a non-mechanical seat-to-disc alignment that prevents sticking or freezing, ensuring reliable emergency activation when system pressures exceed safe limits. Its design incorporates an above-drain seat to prevent the accumulation of sediment or water, which can foul critical sealing surfaces. This ASME rated relief valve is built for longevity in demanding commercial and industrial hydronic applications, featuring an angle pattern configuration with female threaded NPT inlet and outlet connections. It handles maximum operating temperatures up to 250°F and is specialized for non-potable water systems, offering veteran contractors a durable solution for high-static pressure boiler environments.
- Maximum Discharge Capacity: Rated for 3,795,000 BTU/hr to accommodate high-output commercial boilers.
- Corrosion Resistance: Durable bronze construction and stainless steel internals resist harsh water conditions.
- Reliable Seating: Non-metallic disc-to-metal seating designed to prevent sticking after long periods of inactivity.
- Self-Cleaning Design: Seat orientation prevents sediment entrapment, reducing the risk of valve failure.
- Field Testing: Includes a manual test lever for regular maintenance and operational verification.
Common Questions:
Can this valve be used for potable water systems?
This specific model does not comply with the Lead Free requirements of the Safe Drinking Water Act and is intended for non-potable hot water heating and space heating applications.
What is the relief capacity at different pressure settings?
The 174A series offers a range of ratings, but at this 150 psi setpoint, it is specifically rated for 3,795,000 BTU/hr to protect against excessive thermal expansion and pressure spikes.
How do I ensure the valve does not leak after testing?
The automatic reseating mechanism and non-mechanical alignment are built for a tight seal, but ensuring the discharge line is clear of debris is essential for proper reseating after the test lever is released.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
Professional-grade Watts 0275464, a high-capacity Series 174A boiler pressure relief valve, is engineered for critical overpressure protection in large-scale hot water heating and domestic supply systems. Constructed with a heavy-duty bronze body and a rugged stainless steel spring, this 1-inch NPT valve is factory-set to a 150 psi pressure relief setting and delivers a high-volume discharge capacity of 3,795,000 BTU/hr. The 174A series utilizes a non-mechanical seat-to-disc alignment that prevents sticking or freezing, ensuring reliable emergency activation when system pressures exceed safe limits. Its design incorporates an above-drain seat to prevent the accumulation of sediment or water, which can foul critical sealing surfaces. This ASME rated relief valve is built for longevity in demanding commercial and industrial hydronic applications, featuring an angle pattern configuration with female threaded NPT inlet and outlet connections. It handles maximum operating temperatures up to 250°F and is specialized for non-potable water systems, offering veteran contractors a durable solution for high-static pressure boiler environments.
- Maximum Discharge Capacity: Rated for 3,795,000 BTU/hr to accommodate high-output commercial boilers.
- Corrosion Resistance: Durable bronze construction and stainless steel internals resist harsh water conditions.
- Reliable Seating: Non-metallic disc-to-metal seating designed to prevent sticking after long periods of inactivity.
- Self-Cleaning Design: Seat orientation prevents sediment entrapment, reducing the risk of valve failure.
- Field Testing: Includes a manual test lever for regular maintenance and operational verification.
Common Questions:
Can this valve be used for potable water systems?
This specific model does not comply with the Lead Free requirements of the Safe Drinking Water Act and is intended for non-potable hot water heating and space heating applications.
What is the relief capacity at different pressure settings?
The 174A series offers a range of ratings, but at this 150 psi setpoint, it is specifically rated for 3,795,000 BTU/hr to protect against excessive thermal expansion and pressure spikes.
How do I ensure the valve does not leak after testing?
The automatic reseating mechanism and non-mechanical alignment are built for a tight seal, but ensuring the discharge line is clear of debris is essential for proper reseating after the test lever is released.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
