Watts 0383369 Valve
The Watts 0383369 Valve is a robust 1 1/4" NPT pressure relief valve specifically engineered for high-demand hot water space heating boiler applications. This ASME Section IV certified safety device features an iron body construction and is factory-set at a 65 PSI relief setpoint to prevent catastrophic overpressure conditions in commercial and residential hydronic systems. Designed with expanded outlet drain connections, the Series 740 architecture optimizes discharge capacity while protecting critical boiler components. The internal assembly utilizes a non-metallic disc-to-metal seating and a high-tensile stainless steel spring to ensure reliable operation and automatic reseating after pressure stabilization. A top-mounted test lever allows for manual verification of the seat’s integrity, while the non-mechanical seat-to-disc alignment prevents sticking or freezing in corrosive water conditions. This pressure safety valve is an essential component for sustaining the MAWP (Maximum Allowable Working Pressure) of any heating system, provided it is not used as an operating control.
Key Benefits for the Contractor- Enhanced Discharge Flow: Features oversized 1-1/2" outlets to handle high-volume discharge during emergency pressure relief events.
- Corrosion Resistance: The non-metallic seating material isolates the stainless steel spring from system fluid, preventing sediment buildup and seat fouling.
- Precise Pressure Management: Factory-calibrated for a 65 PSI setpoint, ensuring ASME code compliance for heating boiler safety.
- Durable Construction: Heavy-duty iron body designed to withstand high-temperature hydronic environments up to 250°F.
What is the difference between a safety relief valve and an operating control?
This valve is strictly for emergency safety relief. It is not designed to regulate the daily operating pressure of the boiler; instead, it triggers only when the system exceeds its safe 65 PSI limit.
Can this valve be installed in a horizontal orientation?
For optimal performance and to ensure the seat remains clear of sediment, it is recommended to install the valve in a vertical position with the discharge line pitched downward for free draining.
Why does my relief valve continue to drip after a discharge?
Persistent dripping often indicates sediment trapped in the seat. You can attempt to clear this by briefly lifting the test lever, but if the leak continues, the assembly may require replacement to maintain boiler overpressure protection.
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: $855.98
-65%$855.98
$299.59Watts 0383369 Valve
The Watts 0383369 Valve is a robust 1 1/4" NPT pressure relief valve specifically engineered for high-demand hot water space heating boiler applications. This ASME Section IV certified safety device features an iron body construction and is factory-set at a 65 PSI relief setpoint to prevent catastrophic overpressure conditions in commercial and residential hydronic systems. Designed with expanded outlet drain connections, the Series 740 architecture optimizes discharge capacity while protecting critical boiler components. The internal assembly utilizes a non-metallic disc-to-metal seating and a high-tensile stainless steel spring to ensure reliable operation and automatic reseating after pressure stabilization. A top-mounted test lever allows for manual verification of the seat’s integrity, while the non-mechanical seat-to-disc alignment prevents sticking or freezing in corrosive water conditions. This pressure safety valve is an essential component for sustaining the MAWP (Maximum Allowable Working Pressure) of any heating system, provided it is not used as an operating control.
Key Benefits for the Contractor- Enhanced Discharge Flow: Features oversized 1-1/2" outlets to handle high-volume discharge during emergency pressure relief events.
- Corrosion Resistance: The non-metallic seating material isolates the stainless steel spring from system fluid, preventing sediment buildup and seat fouling.
- Precise Pressure Management: Factory-calibrated for a 65 PSI setpoint, ensuring ASME code compliance for heating boiler safety.
- Durable Construction: Heavy-duty iron body designed to withstand high-temperature hydronic environments up to 250°F.
What is the difference between a safety relief valve and an operating control?
This valve is strictly for emergency safety relief. It is not designed to regulate the daily operating pressure of the boiler; instead, it triggers only when the system exceeds its safe 65 PSI limit.
Can this valve be installed in a horizontal orientation?
For optimal performance and to ensure the seat remains clear of sediment, it is recommended to install the valve in a vertical position with the discharge line pitched downward for free draining.
Why does my relief valve continue to drip after a discharge?
Persistent dripping often indicates sediment trapped in the seat. You can attempt to clear this by briefly lifting the test lever, but if the leak continues, the assembly may require replacement to maintain boiler overpressure protection.
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 0383369 Valve is a robust 1 1/4" NPT pressure relief valve specifically engineered for high-demand hot water space heating boiler applications. This ASME Section IV certified safety device features an iron body construction and is factory-set at a 65 PSI relief setpoint to prevent catastrophic overpressure conditions in commercial and residential hydronic systems. Designed with expanded outlet drain connections, the Series 740 architecture optimizes discharge capacity while protecting critical boiler components. The internal assembly utilizes a non-metallic disc-to-metal seating and a high-tensile stainless steel spring to ensure reliable operation and automatic reseating after pressure stabilization. A top-mounted test lever allows for manual verification of the seat’s integrity, while the non-mechanical seat-to-disc alignment prevents sticking or freezing in corrosive water conditions. This pressure safety valve is an essential component for sustaining the MAWP (Maximum Allowable Working Pressure) of any heating system, provided it is not used as an operating control.
Key Benefits for the Contractor- Enhanced Discharge Flow: Features oversized 1-1/2" outlets to handle high-volume discharge during emergency pressure relief events.
- Corrosion Resistance: The non-metallic seating material isolates the stainless steel spring from system fluid, preventing sediment buildup and seat fouling.
- Precise Pressure Management: Factory-calibrated for a 65 PSI setpoint, ensuring ASME code compliance for heating boiler safety.
- Durable Construction: Heavy-duty iron body designed to withstand high-temperature hydronic environments up to 250°F.
What is the difference between a safety relief valve and an operating control?
This valve is strictly for emergency safety relief. It is not designed to regulate the daily operating pressure of the boiler; instead, it triggers only when the system exceeds its safe 65 PSI limit.
Can this valve be installed in a horizontal orientation?
For optimal performance and to ensure the seat remains clear of sediment, it is recommended to install the valve in a vertical position with the discharge line pitched downward for free draining.
Why does my relief valve continue to drip after a discharge?
Persistent dripping often indicates sediment trapped in the seat. You can attempt to clear this by briefly lifting the test lever, but if the leak continues, the assembly may require replacement to maintain boiler overpressure protection.
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.
