Watts 0278480 Valve
The Watts 0278480 (Series 174A) is a heavy-duty, 2-inch ASME Section IV certified pressure relief valve engineered for large-scale hot water heating boilers and high-capacity domestic supply systems. This high-capacity safety device is set to a 125 PSI relief pressure, offering a massive discharge rating of 12,170,000 BTU/hr. Designed for the rigors of mechanical rooms, its bronze body construction ensures long-term durability and resistance to corrosive water conditions. The non-metallic disc-to-metal seating and stainless steel spring are specifically designed to prevent sticking and freezing, ensuring the valve remains operational during an overpressure event.
For service technicians and contractors, the Watts 174A-2-125 features 2" NPT female inlet and outlet connections in an angle pattern, facilitating straightforward integration into existing large-bore piping. The seat is strategically positioned above the drain to prevent sediment buildup and fouling, a common failure point in inferior valves. This boiler pressure relief valve is intended strictly for emergency overpressure protection and provides automatic reseating after the pressure has stabilized. For modern facilities, many 0278480 units now include an integrated sensor for SentryPlus Alert flood detection, allowing for remote monitoring of valve discharge via building management systems.
Key Benefits- High BTU Capacity: Rated for up to 12,170,000 BTU/hr at 125 PSI, suitable for industrial and commercial boiler equipment.
- ASME Rated Safety: Certified under ASME Section IV for use on fired hot water pressure vessels and storage tanks.
- Enhanced Seat Design: The raised seat prevents water and sediment from being trapped, reducing the risk of relief valve leakage.
- Corrosion Resistance: High-grade bronze construction and stainless steel springs provide superior longevity in closed-loop systems.
- Simplified Testing: Includes a heavy-duty test lever for mandatory annual maintenance checks.
What is the maximum operating temperature for the Watts 174A series?
These valves are rated for a maximum temperature of 250°F (121°C), making them ideal for high-temperature hot water heating applications.
Is the Watts 0278480 suitable for potable water systems?
No, this specific model does not comply with the Safe Drinking Water Act (Lead Free) and is intended for non-potable, closed-loop heating or storage tank applications only.
Can I install this valve on a steam boiler?
No, the 174A series is specifically designed for hot water heating boiler applications. Steam systems require a dedicated steam safety valve rated for those specific conditions.
This item is not eligible for free shipping.
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: $1,220.44
-65%$1,220.44
$427.15Watts 0278480 Valve
The Watts 0278480 (Series 174A) is a heavy-duty, 2-inch ASME Section IV certified pressure relief valve engineered for large-scale hot water heating boilers and high-capacity domestic supply systems. This high-capacity safety device is set to a 125 PSI relief pressure, offering a massive discharge rating of 12,170,000 BTU/hr. Designed for the rigors of mechanical rooms, its bronze body construction ensures long-term durability and resistance to corrosive water conditions. The non-metallic disc-to-metal seating and stainless steel spring are specifically designed to prevent sticking and freezing, ensuring the valve remains operational during an overpressure event.
For service technicians and contractors, the Watts 174A-2-125 features 2" NPT female inlet and outlet connections in an angle pattern, facilitating straightforward integration into existing large-bore piping. The seat is strategically positioned above the drain to prevent sediment buildup and fouling, a common failure point in inferior valves. This boiler pressure relief valve is intended strictly for emergency overpressure protection and provides automatic reseating after the pressure has stabilized. For modern facilities, many 0278480 units now include an integrated sensor for SentryPlus Alert flood detection, allowing for remote monitoring of valve discharge via building management systems.
Key Benefits- High BTU Capacity: Rated for up to 12,170,000 BTU/hr at 125 PSI, suitable for industrial and commercial boiler equipment.
- ASME Rated Safety: Certified under ASME Section IV for use on fired hot water pressure vessels and storage tanks.
- Enhanced Seat Design: The raised seat prevents water and sediment from being trapped, reducing the risk of relief valve leakage.
- Corrosion Resistance: High-grade bronze construction and stainless steel springs provide superior longevity in closed-loop systems.
- Simplified Testing: Includes a heavy-duty test lever for mandatory annual maintenance checks.
What is the maximum operating temperature for the Watts 174A series?
These valves are rated for a maximum temperature of 250°F (121°C), making them ideal for high-temperature hot water heating applications.
Is the Watts 0278480 suitable for potable water systems?
No, this specific model does not comply with the Safe Drinking Water Act (Lead Free) and is intended for non-potable, closed-loop heating or storage tank applications only.
Can I install this valve on a steam boiler?
No, the 174A series is specifically designed for hot water heating boiler applications. Steam systems require a dedicated steam safety valve rated for those specific conditions.
This item is not eligible for free shipping.
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 0278480 (Series 174A) is a heavy-duty, 2-inch ASME Section IV certified pressure relief valve engineered for large-scale hot water heating boilers and high-capacity domestic supply systems. This high-capacity safety device is set to a 125 PSI relief pressure, offering a massive discharge rating of 12,170,000 BTU/hr. Designed for the rigors of mechanical rooms, its bronze body construction ensures long-term durability and resistance to corrosive water conditions. The non-metallic disc-to-metal seating and stainless steel spring are specifically designed to prevent sticking and freezing, ensuring the valve remains operational during an overpressure event.
For service technicians and contractors, the Watts 174A-2-125 features 2" NPT female inlet and outlet connections in an angle pattern, facilitating straightforward integration into existing large-bore piping. The seat is strategically positioned above the drain to prevent sediment buildup and fouling, a common failure point in inferior valves. This boiler pressure relief valve is intended strictly for emergency overpressure protection and provides automatic reseating after the pressure has stabilized. For modern facilities, many 0278480 units now include an integrated sensor for SentryPlus Alert flood detection, allowing for remote monitoring of valve discharge via building management systems.
Key Benefits- High BTU Capacity: Rated for up to 12,170,000 BTU/hr at 125 PSI, suitable for industrial and commercial boiler equipment.
- ASME Rated Safety: Certified under ASME Section IV for use on fired hot water pressure vessels and storage tanks.
- Enhanced Seat Design: The raised seat prevents water and sediment from being trapped, reducing the risk of relief valve leakage.
- Corrosion Resistance: High-grade bronze construction and stainless steel springs provide superior longevity in closed-loop systems.
- Simplified Testing: Includes a heavy-duty test lever for mandatory annual maintenance checks.
What is the maximum operating temperature for the Watts 174A series?
These valves are rated for a maximum temperature of 250°F (121°C), making them ideal for high-temperature hot water heating applications.
Is the Watts 0278480 suitable for potable water systems?
No, this specific model does not comply with the Safe Drinking Water Act (Lead Free) and is intended for non-potable, closed-loop heating or storage tank applications only.
Can I install this valve on a steam boiler?
No, the 174A series is specifically designed for hot water heating boiler applications. Steam systems require a dedicated steam safety valve rated for those specific conditions.
This item is not eligible for free shipping.
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.
