Watts 0276770 Valve
The Watts 0276770, also designated as the Model 174A-1.5-75, is a high-capacity boiler pressure relief valve engineered specifically for heavy-duty hot water space heating applications. Constructed with a rugged bronze body, this 1-1/2 inch NPT female threaded valve is built to manage large-scale hydronic systems with a massive relief capacity of 4,125,000 BTU/hr. Set at 75 PSI, it provides critical overpressure protection for commercial and industrial boilers.
For technicians in the field, the Watts 174A series is the industry benchmark because of its non-mechanical seat-to-disc alignment, which effectively prevents the valve from sticking or freezing due to mineral buildup or sediment. The non-metallic disc-to-metal seating ensures a positive seal and reliable automatic reseating after discharge. This model features an angle pattern design and is rated for temperatures up to 250°F. Note that this is a non-potable water valve and is not intended for use in systems providing water for human consumption.
Key Benefits for Contactors:- High BTU Capacity: Rated at 4,125,000 BTU/hr to handle large-scale commercial boiler loads.
- Debris Resistance: The raised seat design prevents sediment from fouling the seal, ensuring the valve clears correctly during discharge.
- Durable Construction: Features a bronze body and stainless steel spring to resist corrosive water conditions and extend service life in harsh mechanical rooms.
- Fail-Safe Protection: Designed as an ASME Section IV safety relief device to discharge water or steam if operating controls fail.
Is the 0276770 model the same as the 174A-1 1/2-75?
Yes, 0276770 is the specific ordering code for the 1-1/2" 174A series valve factory-set at 75 PSI.
Can this valve be used on a domestic potable water heater?
No. This valve is non-lead-free and specifically designed for closed-loop hot water heating systems. For potable water applications, a lead-free relief valve must be used.
Does this include a flood sensor?
While the current 174A series often features a flood sensor port, verify the specific sub-model if SentryPlus Alert connectivity is required for your Building Automation System (BAS).
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.
Watts 0276770 Valve
The Watts 0276770, also designated as the Model 174A-1.5-75, is a high-capacity boiler pressure relief valve engineered specifically for heavy-duty hot water space heating applications. Constructed with a rugged bronze body, this 1-1/2 inch NPT female threaded valve is built to manage large-scale hydronic systems with a massive relief capacity of 4,125,000 BTU/hr. Set at 75 PSI, it provides critical overpressure protection for commercial and industrial boilers.
For technicians in the field, the Watts 174A series is the industry benchmark because of its non-mechanical seat-to-disc alignment, which effectively prevents the valve from sticking or freezing due to mineral buildup or sediment. The non-metallic disc-to-metal seating ensures a positive seal and reliable automatic reseating after discharge. This model features an angle pattern design and is rated for temperatures up to 250°F. Note that this is a non-potable water valve and is not intended for use in systems providing water for human consumption.
Key Benefits for Contactors:- High BTU Capacity: Rated at 4,125,000 BTU/hr to handle large-scale commercial boiler loads.
- Debris Resistance: The raised seat design prevents sediment from fouling the seal, ensuring the valve clears correctly during discharge.
- Durable Construction: Features a bronze body and stainless steel spring to resist corrosive water conditions and extend service life in harsh mechanical rooms.
- Fail-Safe Protection: Designed as an ASME Section IV safety relief device to discharge water or steam if operating controls fail.
Is the 0276770 model the same as the 174A-1 1/2-75?
Yes, 0276770 is the specific ordering code for the 1-1/2" 174A series valve factory-set at 75 PSI.
Can this valve be used on a domestic potable water heater?
No. This valve is non-lead-free and specifically designed for closed-loop hot water heating systems. For potable water applications, a lead-free relief valve must be used.
Does this include a flood sensor?
While the current 174A series often features a flood sensor port, verify the specific sub-model if SentryPlus Alert connectivity is required for your Building Automation System (BAS).
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.
Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
The Watts 0276770, also designated as the Model 174A-1.5-75, is a high-capacity boiler pressure relief valve engineered specifically for heavy-duty hot water space heating applications. Constructed with a rugged bronze body, this 1-1/2 inch NPT female threaded valve is built to manage large-scale hydronic systems with a massive relief capacity of 4,125,000 BTU/hr. Set at 75 PSI, it provides critical overpressure protection for commercial and industrial boilers.
For technicians in the field, the Watts 174A series is the industry benchmark because of its non-mechanical seat-to-disc alignment, which effectively prevents the valve from sticking or freezing due to mineral buildup or sediment. The non-metallic disc-to-metal seating ensures a positive seal and reliable automatic reseating after discharge. This model features an angle pattern design and is rated for temperatures up to 250°F. Note that this is a non-potable water valve and is not intended for use in systems providing water for human consumption.
Key Benefits for Contactors:- High BTU Capacity: Rated at 4,125,000 BTU/hr to handle large-scale commercial boiler loads.
- Debris Resistance: The raised seat design prevents sediment from fouling the seal, ensuring the valve clears correctly during discharge.
- Durable Construction: Features a bronze body and stainless steel spring to resist corrosive water conditions and extend service life in harsh mechanical rooms.
- Fail-Safe Protection: Designed as an ASME Section IV safety relief device to discharge water or steam if operating controls fail.
Is the 0276770 model the same as the 174A-1 1/2-75?
Yes, 0276770 is the specific ordering code for the 1-1/2" 174A series valve factory-set at 75 PSI.
Can this valve be used on a domestic potable water heater?
No. This valve is non-lead-free and specifically designed for closed-loop hot water heating systems. For potable water applications, a lead-free relief valve must be used.
Does this include a flood sensor?
While the current 174A series often features a flood sensor port, verify the specific sub-model if SentryPlus Alert connectivity is required for your Building Automation System (BAS).
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.
