Watts 0386463 Valve
The Watts 0386463 (Series 911S-M3) is a professional-grade 1/2" boiler feed water pressure regulator and backflow preventer combo designed for high-demand hydronic heating systems. Engineered for both commercial and residential boiler feed lines, this pre-assembled unit combines the Model 9D dual check backflow preventer with the Model 1156F feed water pressure regulator into a single, compact bronze body. This integration simplifies installation and ensures a continuous make-up water supply while protecting the potable water system from back-siphonage and backpressure. With a high-capacity design, the Watts 911S-M3 allows for rapid system filling and purging, significantly reducing downtime during maintenance. Rated for a maximum pressure of 100 PSI and fluid temperatures up to 212°F, this 1/2 inch backflow preventer fill valve provides the thermal and mechanical resilience required by seasoned HVAC contractors. The union sweat inlet and NPT female outlet configuration facilitate versatile plumbing connections in tight mechanical rooms.
Key Benefits for Technicians:- Dual-Function Design: Consolidates a pressure reducing valve and an atmospheric vent backflow preventer to reduce potential leak points.
- High-Flow Filling: Optimized for rapid initial system charging and efficient air purging in residential and commercial loops.
- Durable Construction: Heavy-duty bronze body and stainless steel strainers resist corrosion and scaling in harsh hydronic environments.
- Serviceability: Features modular internals for straightforward cleaning or component replacement without removing the entire valve from the line.
- What is the factory pressure setting? The unit is typically factory-set at 15 PSI, though it is field-adjustable between 10 and 25 PSI to meet specific system head requirements.
- Can this be installed in any orientation? Yes, the 911S-M3 is designed for both horizontal and vertical pipe runs, provided the atmospheric vent is positioned to drain correctly.
- Is this valve suitable for potable water applications? No, this lead-containing bronze assembly is strictly for non-potable boiler feed water applications and must not be used for drinking water systems.
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: $386.21
-65%$386.21
$135.17Watts 0386463 Valve
The Watts 0386463 (Series 911S-M3) is a professional-grade 1/2" boiler feed water pressure regulator and backflow preventer combo designed for high-demand hydronic heating systems. Engineered for both commercial and residential boiler feed lines, this pre-assembled unit combines the Model 9D dual check backflow preventer with the Model 1156F feed water pressure regulator into a single, compact bronze body. This integration simplifies installation and ensures a continuous make-up water supply while protecting the potable water system from back-siphonage and backpressure. With a high-capacity design, the Watts 911S-M3 allows for rapid system filling and purging, significantly reducing downtime during maintenance. Rated for a maximum pressure of 100 PSI and fluid temperatures up to 212°F, this 1/2 inch backflow preventer fill valve provides the thermal and mechanical resilience required by seasoned HVAC contractors. The union sweat inlet and NPT female outlet configuration facilitate versatile plumbing connections in tight mechanical rooms.
Key Benefits for Technicians:- Dual-Function Design: Consolidates a pressure reducing valve and an atmospheric vent backflow preventer to reduce potential leak points.
- High-Flow Filling: Optimized for rapid initial system charging and efficient air purging in residential and commercial loops.
- Durable Construction: Heavy-duty bronze body and stainless steel strainers resist corrosion and scaling in harsh hydronic environments.
- Serviceability: Features modular internals for straightforward cleaning or component replacement without removing the entire valve from the line.
- What is the factory pressure setting? The unit is typically factory-set at 15 PSI, though it is field-adjustable between 10 and 25 PSI to meet specific system head requirements.
- Can this be installed in any orientation? Yes, the 911S-M3 is designed for both horizontal and vertical pipe runs, provided the atmospheric vent is positioned to drain correctly.
- Is this valve suitable for potable water applications? No, this lead-containing bronze assembly is strictly for non-potable boiler feed water applications and must not be used for drinking water systems.
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 0386463 (Series 911S-M3) is a professional-grade 1/2" boiler feed water pressure regulator and backflow preventer combo designed for high-demand hydronic heating systems. Engineered for both commercial and residential boiler feed lines, this pre-assembled unit combines the Model 9D dual check backflow preventer with the Model 1156F feed water pressure regulator into a single, compact bronze body. This integration simplifies installation and ensures a continuous make-up water supply while protecting the potable water system from back-siphonage and backpressure. With a high-capacity design, the Watts 911S-M3 allows for rapid system filling and purging, significantly reducing downtime during maintenance. Rated for a maximum pressure of 100 PSI and fluid temperatures up to 212°F, this 1/2 inch backflow preventer fill valve provides the thermal and mechanical resilience required by seasoned HVAC contractors. The union sweat inlet and NPT female outlet configuration facilitate versatile plumbing connections in tight mechanical rooms.
Key Benefits for Technicians:- Dual-Function Design: Consolidates a pressure reducing valve and an atmospheric vent backflow preventer to reduce potential leak points.
- High-Flow Filling: Optimized for rapid initial system charging and efficient air purging in residential and commercial loops.
- Durable Construction: Heavy-duty bronze body and stainless steel strainers resist corrosion and scaling in harsh hydronic environments.
- Serviceability: Features modular internals for straightforward cleaning or component replacement without removing the entire valve from the line.
- What is the factory pressure setting? The unit is typically factory-set at 15 PSI, though it is field-adjustable between 10 and 25 PSI to meet specific system head requirements.
- Can this be installed in any orientation? Yes, the 911S-M3 is designed for both horizontal and vertical pipe runs, provided the atmospheric vent is positioned to drain correctly.
- Is this valve suitable for potable water applications? No, this lead-containing bronze assembly is strictly for non-potable boiler feed water applications and must not be used for drinking water systems.
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.
