Watts 0382571 Valve
The Watts 0382571 (Series 174A) is a heavy-duty boiler pressure relief valve designed for high-capacity hot water heating and domestic supply systems. This 1-inch NPT valve is factory set at 35 PSI with a massive discharge capacity of 1,450,000 BTU/hr, making it a standard choice for protecting commercial and large residential boilers against over-pressure conditions. Built with a rugged bronze body construction, the valve features a non-metallic disc-to-metal seating design that prevents sticking or freezing even in corrosive water conditions. The Watts 174A 35 PSI relief valve includes a stainless steel spring and a built-in test lever for manual maintenance and inspection. Its unique "above-the-drain" seat design ensures that sediment and water are not trapped in the seat, significantly reducing the risk of fouling. As an ASME Section IV rated safety device, this valve provides critical emergency relief for hydronic heating systems and must be installed in accordance with local mechanical codes to ensure system integrity.
- High BTU Capacity: Rated for up to 1,450,000 BTU/hr to handle high-output boiler applications safely.
- Corrosion Resistant: Features a bronze body and stainless steel spring for long-term durability in closed-loop systems.
- Anti-Foul Design: The seating is positioned above the discharge level to prevent sediment buildup from compromising the seal.
- NPT Connections: Standard 1-inch female NPT inlet and outlet for a secure, leak-free integration with existing iron pipe schedules.
- ASME Rated: Manufactured in compliance with ASME Section IV standards for pressure relief valves.
What is the difference between a safety relief valve and an operating control?
The Watts 174A is strictly an emergency safety device. It is designed to open during an over-pressure event and should never be used as a primary means of regulating system pressure or temperature.
Does this valve support the SentryPlus Alert® flood sensor?
While many Series 174A valves can be retrofitted with a flood sensor to detect discharge via BMS or Wi-Fi, verify the specific casting of this model allows for the mounting of the SentryPlus detection kit before installation.
Can I install this valve in any orientation?
For proper function and to meet code requirements, boiler relief valves must typically be installed with the spindle in a vertical position with the discharge line piped to a safe location near the floor.
1" 35# 1,450,000btu Rel Valve
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: $616.17
-65%$616.17
$215.66Watts 0382571 Valve
The Watts 0382571 (Series 174A) is a heavy-duty boiler pressure relief valve designed for high-capacity hot water heating and domestic supply systems. This 1-inch NPT valve is factory set at 35 PSI with a massive discharge capacity of 1,450,000 BTU/hr, making it a standard choice for protecting commercial and large residential boilers against over-pressure conditions. Built with a rugged bronze body construction, the valve features a non-metallic disc-to-metal seating design that prevents sticking or freezing even in corrosive water conditions. The Watts 174A 35 PSI relief valve includes a stainless steel spring and a built-in test lever for manual maintenance and inspection. Its unique "above-the-drain" seat design ensures that sediment and water are not trapped in the seat, significantly reducing the risk of fouling. As an ASME Section IV rated safety device, this valve provides critical emergency relief for hydronic heating systems and must be installed in accordance with local mechanical codes to ensure system integrity.
- High BTU Capacity: Rated for up to 1,450,000 BTU/hr to handle high-output boiler applications safely.
- Corrosion Resistant: Features a bronze body and stainless steel spring for long-term durability in closed-loop systems.
- Anti-Foul Design: The seating is positioned above the discharge level to prevent sediment buildup from compromising the seal.
- NPT Connections: Standard 1-inch female NPT inlet and outlet for a secure, leak-free integration with existing iron pipe schedules.
- ASME Rated: Manufactured in compliance with ASME Section IV standards for pressure relief valves.
What is the difference between a safety relief valve and an operating control?
The Watts 174A is strictly an emergency safety device. It is designed to open during an over-pressure event and should never be used as a primary means of regulating system pressure or temperature.
Does this valve support the SentryPlus Alert® flood sensor?
While many Series 174A valves can be retrofitted with a flood sensor to detect discharge via BMS or Wi-Fi, verify the specific casting of this model allows for the mounting of the SentryPlus detection kit before installation.
Can I install this valve in any orientation?
For proper function and to meet code requirements, boiler relief valves must typically be installed with the spindle in a vertical position with the discharge line piped to a safe location near the floor.
1" 35# 1,450,000btu Rel Valve
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.
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Description
The Watts 0382571 (Series 174A) is a heavy-duty boiler pressure relief valve designed for high-capacity hot water heating and domestic supply systems. This 1-inch NPT valve is factory set at 35 PSI with a massive discharge capacity of 1,450,000 BTU/hr, making it a standard choice for protecting commercial and large residential boilers against over-pressure conditions. Built with a rugged bronze body construction, the valve features a non-metallic disc-to-metal seating design that prevents sticking or freezing even in corrosive water conditions. The Watts 174A 35 PSI relief valve includes a stainless steel spring and a built-in test lever for manual maintenance and inspection. Its unique "above-the-drain" seat design ensures that sediment and water are not trapped in the seat, significantly reducing the risk of fouling. As an ASME Section IV rated safety device, this valve provides critical emergency relief for hydronic heating systems and must be installed in accordance with local mechanical codes to ensure system integrity.
- High BTU Capacity: Rated for up to 1,450,000 BTU/hr to handle high-output boiler applications safely.
- Corrosion Resistant: Features a bronze body and stainless steel spring for long-term durability in closed-loop systems.
- Anti-Foul Design: The seating is positioned above the discharge level to prevent sediment buildup from compromising the seal.
- NPT Connections: Standard 1-inch female NPT inlet and outlet for a secure, leak-free integration with existing iron pipe schedules.
- ASME Rated: Manufactured in compliance with ASME Section IV standards for pressure relief valves.
What is the difference between a safety relief valve and an operating control?
The Watts 174A is strictly an emergency safety device. It is designed to open during an over-pressure event and should never be used as a primary means of regulating system pressure or temperature.
Does this valve support the SentryPlus Alert® flood sensor?
While many Series 174A valves can be retrofitted with a flood sensor to detect discharge via BMS or Wi-Fi, verify the specific casting of this model allows for the mounting of the SentryPlus detection kit before installation.
Can I install this valve in any orientation?
For proper function and to meet code requirements, boiler relief valves must typically be installed with the spindle in a vertical position with the discharge line piped to a safe location near the floor.
1" 35# 1,450,000btu Rel Valve
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.
