Watts 0121465 Relief Valve
The Watts 0121465 is a high-performance 3/4 inch boiler relief valve, specifically the Series 335, engineered for pressure protection in hot water heating boilers and water supply systems. This valve features a 50 PSI pressure setting and a 3/4" NPT female inlet with a 3/4" NPT female outlet. Constructed with a durable bronze body and stainless steel spring, the Watts Series 335-M1 provides reliable overpressure protection for residential and light commercial hydronic systems. The high-capacity design ensures rapid discharge to prevent system failure during pressure spikes. As a safety relief valve for boilers, it adheres to ASME Section IV standards for pressure vessel safety. It is a drop-in replacement for worn Watts 335 valves, ensuring proper system relief and long-term reliability in thermal expansion scenarios. Proper installation requires mounting in a vertical position to ensure the integrity of the boiler pressure relief mechanism remains uncompromised during high-heat cycles.
Key Benefits for the Technician- Corrosion Resistance: High-grade bronze body construction ensures durability in harsh hydronic environments.
- ASME Certified: Meets strict ASME Section IV safety standards for pressure relief capacities.
- Reliable Seating: Features a silicone disc to ensure a tight seal and prevent nuisance episodes of boiler valve leaking.
- Standardized Fit: 3/4" FIP connections allow for straightforward integration into existing manifold configurations.
- Thermal Protection: Designed to handle high-temperature water systems without compromising the spring integrity or relief set point.
What causes this valve to drip constantly?
Constant dripping usually indicates the system pressure is approaching the 50 PSI relief setting or there is debris trapped on the valve seat. Check the expansion tank charge and the pressure reducing valve before replacing the relief valve.
Can this valve be mounted horizontally?
No, to ensure a proper ASME rated discharge and prevent sediment buildup on the seat, this valve must be installed in a vertical position with the discharge pipe angled downward.
Is this model suitable for potable water heaters?
While this is a 3/4 inch relief valve, the 335 series is specifically rated for hot water heating boilers. For potable water heaters, a valve with a T&P (Temperature and Pressure) rating, such as the Watts 40 series, is typically required by code.
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: $428.95
-65%$428.95
$150.13Watts 0121465 Relief Valve
The Watts 0121465 is a high-performance 3/4 inch boiler relief valve, specifically the Series 335, engineered for pressure protection in hot water heating boilers and water supply systems. This valve features a 50 PSI pressure setting and a 3/4" NPT female inlet with a 3/4" NPT female outlet. Constructed with a durable bronze body and stainless steel spring, the Watts Series 335-M1 provides reliable overpressure protection for residential and light commercial hydronic systems. The high-capacity design ensures rapid discharge to prevent system failure during pressure spikes. As a safety relief valve for boilers, it adheres to ASME Section IV standards for pressure vessel safety. It is a drop-in replacement for worn Watts 335 valves, ensuring proper system relief and long-term reliability in thermal expansion scenarios. Proper installation requires mounting in a vertical position to ensure the integrity of the boiler pressure relief mechanism remains uncompromised during high-heat cycles.
Key Benefits for the Technician- Corrosion Resistance: High-grade bronze body construction ensures durability in harsh hydronic environments.
- ASME Certified: Meets strict ASME Section IV safety standards for pressure relief capacities.
- Reliable Seating: Features a silicone disc to ensure a tight seal and prevent nuisance episodes of boiler valve leaking.
- Standardized Fit: 3/4" FIP connections allow for straightforward integration into existing manifold configurations.
- Thermal Protection: Designed to handle high-temperature water systems without compromising the spring integrity or relief set point.
What causes this valve to drip constantly?
Constant dripping usually indicates the system pressure is approaching the 50 PSI relief setting or there is debris trapped on the valve seat. Check the expansion tank charge and the pressure reducing valve before replacing the relief valve.
Can this valve be mounted horizontally?
No, to ensure a proper ASME rated discharge and prevent sediment buildup on the seat, this valve must be installed in a vertical position with the discharge pipe angled downward.
Is this model suitable for potable water heaters?
While this is a 3/4 inch relief valve, the 335 series is specifically rated for hot water heating boilers. For potable water heaters, a valve with a T&P (Temperature and Pressure) rating, such as the Watts 40 series, is typically required by code.
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 0121465 is a high-performance 3/4 inch boiler relief valve, specifically the Series 335, engineered for pressure protection in hot water heating boilers and water supply systems. This valve features a 50 PSI pressure setting and a 3/4" NPT female inlet with a 3/4" NPT female outlet. Constructed with a durable bronze body and stainless steel spring, the Watts Series 335-M1 provides reliable overpressure protection for residential and light commercial hydronic systems. The high-capacity design ensures rapid discharge to prevent system failure during pressure spikes. As a safety relief valve for boilers, it adheres to ASME Section IV standards for pressure vessel safety. It is a drop-in replacement for worn Watts 335 valves, ensuring proper system relief and long-term reliability in thermal expansion scenarios. Proper installation requires mounting in a vertical position to ensure the integrity of the boiler pressure relief mechanism remains uncompromised during high-heat cycles.
Key Benefits for the Technician- Corrosion Resistance: High-grade bronze body construction ensures durability in harsh hydronic environments.
- ASME Certified: Meets strict ASME Section IV safety standards for pressure relief capacities.
- Reliable Seating: Features a silicone disc to ensure a tight seal and prevent nuisance episodes of boiler valve leaking.
- Standardized Fit: 3/4" FIP connections allow for straightforward integration into existing manifold configurations.
- Thermal Protection: Designed to handle high-temperature water systems without compromising the spring integrity or relief set point.
What causes this valve to drip constantly?
Constant dripping usually indicates the system pressure is approaching the 50 PSI relief setting or there is debris trapped on the valve seat. Check the expansion tank charge and the pressure reducing valve before replacing the relief valve.
Can this valve be mounted horizontally?
No, to ensure a proper ASME rated discharge and prevent sediment buildup on the seat, this valve must be installed in a vertical position with the discharge pipe angled downward.
Is this model suitable for potable water heaters?
While this is a 3/4 inch relief valve, the 335 series is specifically rated for hot water heating boilers. For potable water heaters, a valve with a T&P (Temperature and Pressure) rating, such as the Watts 40 series, is typically required by code.
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.
