Watts 0274427 Valve
The Watts Series 174A (Ordering Code 0274427) is a high-capacity boiler pressure relief valve designed specifically for hot water heating boilers and water supply heaters. This 3/4 inch NPT female inlet/outlet valve is engineered with a bronze body and a non-metallic disc-to-metal seat, ensuring consistent performance in high-temperature hydronic systems. With a factory-set 35 PSI pressure relief and a high steam discharge capacity of 725,000 BTU/Hr, this valve provides critical overpressure protection. The Watts 174A-35 features a large seat orifice and a mechanical lift lever for manual testing, facilitating routine maintenance inspections. Its robust construction is designed to withstand the rigors of commercial and residential heating applications, maintaining system integrity by preventing excessive pressure build-up. For contractors, the 0274427 pressure relief valve offers reliable HVAC overpressure protection, facilitating seamless integration during boiler installs or system retrofits.
Key Benefits for Technicians:- High BTU Rating: Provides an ASME-rated discharge capacity of 725,000 BTU/Hr, suitable for large-scale hydronic boilers.
- Durable Bronze Construction: Built with a heavy-duty bronze body to resist corrosion and ensure longevity in demanding thermal environments.
- Precise 35 PSI Setting: Factory-calibrated for systems requiring a higher-than-standard relief set point to prevent nuisance tripping.
- Simplified Serviceability: Includes a stainless steel spring and a durable silicone disc for a positive seal and reliable reset after discharge.
- Code Compliance: Meets ASME Section IV requirements for heating boilers, ensuring your installation passes inspection.
What is the maximum operating temperature for this valve?
The Series 174A is designed to operate in temperatures up to 250 degrees Fahrenheit (121 degrees Celsius), making it compatible with most standard high-temperature boiler systems.
Can the Watts 0274427 be installed in a horizontal orientation?
For proper functionality and to satisfy code requirements, the valve should prioritize a vertical orientation to ensure the piping can drain correctly and the internal mechanism operates without interference.
Does this relief valve replace standard 30 PSI boiler valves?
While the 3/4-inch sizing is standard, this specific model is set to 35 PSI. You must verify that the boiler and all downstream components are rated for a maximum allowable working pressure (MAWP) that exceeds 35 PSI before upgrading from a 30 PSI 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: $412.66
-65%$412.66
$144.43Watts 0274427 Valve
The Watts Series 174A (Ordering Code 0274427) is a high-capacity boiler pressure relief valve designed specifically for hot water heating boilers and water supply heaters. This 3/4 inch NPT female inlet/outlet valve is engineered with a bronze body and a non-metallic disc-to-metal seat, ensuring consistent performance in high-temperature hydronic systems. With a factory-set 35 PSI pressure relief and a high steam discharge capacity of 725,000 BTU/Hr, this valve provides critical overpressure protection. The Watts 174A-35 features a large seat orifice and a mechanical lift lever for manual testing, facilitating routine maintenance inspections. Its robust construction is designed to withstand the rigors of commercial and residential heating applications, maintaining system integrity by preventing excessive pressure build-up. For contractors, the 0274427 pressure relief valve offers reliable HVAC overpressure protection, facilitating seamless integration during boiler installs or system retrofits.
Key Benefits for Technicians:- High BTU Rating: Provides an ASME-rated discharge capacity of 725,000 BTU/Hr, suitable for large-scale hydronic boilers.
- Durable Bronze Construction: Built with a heavy-duty bronze body to resist corrosion and ensure longevity in demanding thermal environments.
- Precise 35 PSI Setting: Factory-calibrated for systems requiring a higher-than-standard relief set point to prevent nuisance tripping.
- Simplified Serviceability: Includes a stainless steel spring and a durable silicone disc for a positive seal and reliable reset after discharge.
- Code Compliance: Meets ASME Section IV requirements for heating boilers, ensuring your installation passes inspection.
What is the maximum operating temperature for this valve?
The Series 174A is designed to operate in temperatures up to 250 degrees Fahrenheit (121 degrees Celsius), making it compatible with most standard high-temperature boiler systems.
Can the Watts 0274427 be installed in a horizontal orientation?
For proper functionality and to satisfy code requirements, the valve should prioritize a vertical orientation to ensure the piping can drain correctly and the internal mechanism operates without interference.
Does this relief valve replace standard 30 PSI boiler valves?
While the 3/4-inch sizing is standard, this specific model is set to 35 PSI. You must verify that the boiler and all downstream components are rated for a maximum allowable working pressure (MAWP) that exceeds 35 PSI before upgrading from a 30 PSI 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 Series 174A (Ordering Code 0274427) is a high-capacity boiler pressure relief valve designed specifically for hot water heating boilers and water supply heaters. This 3/4 inch NPT female inlet/outlet valve is engineered with a bronze body and a non-metallic disc-to-metal seat, ensuring consistent performance in high-temperature hydronic systems. With a factory-set 35 PSI pressure relief and a high steam discharge capacity of 725,000 BTU/Hr, this valve provides critical overpressure protection. The Watts 174A-35 features a large seat orifice and a mechanical lift lever for manual testing, facilitating routine maintenance inspections. Its robust construction is designed to withstand the rigors of commercial and residential heating applications, maintaining system integrity by preventing excessive pressure build-up. For contractors, the 0274427 pressure relief valve offers reliable HVAC overpressure protection, facilitating seamless integration during boiler installs or system retrofits.
Key Benefits for Technicians:- High BTU Rating: Provides an ASME-rated discharge capacity of 725,000 BTU/Hr, suitable for large-scale hydronic boilers.
- Durable Bronze Construction: Built with a heavy-duty bronze body to resist corrosion and ensure longevity in demanding thermal environments.
- Precise 35 PSI Setting: Factory-calibrated for systems requiring a higher-than-standard relief set point to prevent nuisance tripping.
- Simplified Serviceability: Includes a stainless steel spring and a durable silicone disc for a positive seal and reliable reset after discharge.
- Code Compliance: Meets ASME Section IV requirements for heating boilers, ensuring your installation passes inspection.
What is the maximum operating temperature for this valve?
The Series 174A is designed to operate in temperatures up to 250 degrees Fahrenheit (121 degrees Celsius), making it compatible with most standard high-temperature boiler systems.
Can the Watts 0274427 be installed in a horizontal orientation?
For proper functionality and to satisfy code requirements, the valve should prioritize a vertical orientation to ensure the piping can drain correctly and the internal mechanism operates without interference.
Does this relief valve replace standard 30 PSI boiler valves?
While the 3/4-inch sizing is standard, this specific model is set to 35 PSI. You must verify that the boiler and all downstream components are rated for a maximum allowable working pressure (MAWP) that exceeds 35 PSI before upgrading from a 30 PSI 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.
