
Watts 0275404 Valve
The Watts 0275404 is a high-capacity boiler pressure relief valve from the Series 174A, engineered specifically for hot water heating and domestic supply systems. This 1-inch NPT threaded valve is designed to handle demanding commercial and industrial hydronic loads, featuring a discharge capacity of 3,215,000 BTU/hr at a 125 PSI pressure relief setting. Built with a rugged bronze body and a stainless steel spring, it utilizes a non-metallic, soft-seated disc-to-metal design to prevent seat leakage and resist sticking caused by mineral deposits or scale buildup. As a veteran-grade ASME Section IV safety valve, it ensures reliable overpressure protection and automatic reseating during emergency conditions. The female NPT inlet and outlet connections allow for straightforward integration into existing mechanical room piping, while the integrated test lever facilitates mandatory periodic functionality inspections.
Key Benefits for Contractors:
- Maximum Discharge Capacity: Rated for systems up to 3,215,000 BTU/hr, making it suitable for large-scale commercial boiler plants.
- Corrosion Resistance: The Watts 174A-1-125# material composition resists corrosion and freezing in high-temperature hydronic environments.
- Positive Seal: Non-metallic disc ensures a tight seal and reduces the risk of "simmering" or nuisance dripping.
- Code Compliance: Built to meet rigorous ASME requirements for safety valves in hot water heating applications.
Common Questions:
Can this valve be used for steam applications?
No, the Series 174A is designed specifically for hot water heating boilers and domestic water supply systems. It is not rated for steam pressure relief.
What is the orientation requirement for installation?
For proper operation and drainage, the valve must be installed with the spindle in a vertical position. Ensure the discharge piping is at least the same size as the valve outlet and piped to a safe point of discharge.
Is this a lead-free valve?
The Watts 0275404 is not designated as lead-free and is intended for use in closed-loop heating systems or specific domestic boiler applications where lead-free compliance is not required by local codes.
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: $682.43
-65%$682.43
$238.85Watts 0275404 Valve
The Watts 0275404 is a high-capacity boiler pressure relief valve from the Series 174A, engineered specifically for hot water heating and domestic supply systems. This 1-inch NPT threaded valve is designed to handle demanding commercial and industrial hydronic loads, featuring a discharge capacity of 3,215,000 BTU/hr at a 125 PSI pressure relief setting. Built with a rugged bronze body and a stainless steel spring, it utilizes a non-metallic, soft-seated disc-to-metal design to prevent seat leakage and resist sticking caused by mineral deposits or scale buildup. As a veteran-grade ASME Section IV safety valve, it ensures reliable overpressure protection and automatic reseating during emergency conditions. The female NPT inlet and outlet connections allow for straightforward integration into existing mechanical room piping, while the integrated test lever facilitates mandatory periodic functionality inspections.
Key Benefits for Contractors:
- Maximum Discharge Capacity: Rated for systems up to 3,215,000 BTU/hr, making it suitable for large-scale commercial boiler plants.
- Corrosion Resistance: The Watts 174A-1-125# material composition resists corrosion and freezing in high-temperature hydronic environments.
- Positive Seal: Non-metallic disc ensures a tight seal and reduces the risk of "simmering" or nuisance dripping.
- Code Compliance: Built to meet rigorous ASME requirements for safety valves in hot water heating applications.
Common Questions:
Can this valve be used for steam applications?
No, the Series 174A is designed specifically for hot water heating boilers and domestic water supply systems. It is not rated for steam pressure relief.
What is the orientation requirement for installation?
For proper operation and drainage, the valve must be installed with the spindle in a vertical position. Ensure the discharge piping is at least the same size as the valve outlet and piped to a safe point of discharge.
Is this a lead-free valve?
The Watts 0275404 is not designated as lead-free and is intended for use in closed-loop heating systems or specific domestic boiler applications where lead-free compliance is not required by local codes.
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
The Watts 0275404 is a high-capacity boiler pressure relief valve from the Series 174A, engineered specifically for hot water heating and domestic supply systems. This 1-inch NPT threaded valve is designed to handle demanding commercial and industrial hydronic loads, featuring a discharge capacity of 3,215,000 BTU/hr at a 125 PSI pressure relief setting. Built with a rugged bronze body and a stainless steel spring, it utilizes a non-metallic, soft-seated disc-to-metal design to prevent seat leakage and resist sticking caused by mineral deposits or scale buildup. As a veteran-grade ASME Section IV safety valve, it ensures reliable overpressure protection and automatic reseating during emergency conditions. The female NPT inlet and outlet connections allow for straightforward integration into existing mechanical room piping, while the integrated test lever facilitates mandatory periodic functionality inspections.
Key Benefits for Contractors:
- Maximum Discharge Capacity: Rated for systems up to 3,215,000 BTU/hr, making it suitable for large-scale commercial boiler plants.
- Corrosion Resistance: The Watts 174A-1-125# material composition resists corrosion and freezing in high-temperature hydronic environments.
- Positive Seal: Non-metallic disc ensures a tight seal and reduces the risk of "simmering" or nuisance dripping.
- Code Compliance: Built to meet rigorous ASME requirements for safety valves in hot water heating applications.
Common Questions:
Can this valve be used for steam applications?
No, the Series 174A is designed specifically for hot water heating boilers and domestic water supply systems. It is not rated for steam pressure relief.
What is the orientation requirement for installation?
For proper operation and drainage, the valve must be installed with the spindle in a vertical position. Ensure the discharge piping is at least the same size as the valve outlet and piped to a safe point of discharge.
Is this a lead-free valve?
The Watts 0275404 is not designated as lead-free and is intended for use in closed-loop heating systems or specific domestic boiler applications where lead-free compliance is not required by local codes.
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.












