Watts 0386456 Regulator

The Watts 0386456 is a high-capacity bronze feed water pressure regulator engineered for commercial and residential hydronic heating systems. As the direct professional replacement for the Watts 0322825 (N256), this 3/4" NPT valve maintains consistent system pressure while providing essential make-up water to compensate for system leaks. The unit features a rugged bronze body construction and is factory-set at 15 psi, with an adjustable reduced pressure range of 10 to 25 psi to accommodate varying building heights and head pressure requirements.

Designed for streamlined field maintenance, the Watts N256 series incorporates a unitized design that houses the seat, disc, and stainless steel strainer in a single assembly. This configuration, combined with the integrated tight-seating check valve and manual purge lever, ensures rapid system filling and effective air purging without over-pressurizing the boiler. This non-potable boiler feed valve is rated for maximum working pressures up to 100 psi and operating temperatures reaching 212°F, making it a reliable standard for veteran contractors handling high-demand boiler feed lines.

• Simplified Field Service: Unitized construction allows for the complete replacement of the strainer, seat, and disc assembly without removing the valve body from the line.
• Fast-Fill Capability: Integrated purge lever facilitates rapid system charging and air removal during initial commissioning or maintenance cycles.
• Internal Protection: A built-in stainless steel screen prevents debris and scale from fouling the valve seat, reducing the risk of a dripping relief valve.
• Broad Compatibility: Replaces legacy N256 models and 0322825 units, ensuring a seamless fit for 3/4" NPT supply lines in existing hydronic loops.

Is the Watts 0386456 suitable for potable water systems?
No, this regulator is designed strictly for non-potable hydronic heating applications and does not meet low-lead requirements for drinking water.

Can the pressure setting be adjusted for taller buildings?
Yes, the regulator includes an adjusting screw to modify the 15 psi factory setting. Increasing the pressure ensures water reaches the highest radiation points in multi-story structures.

Does this unit prevent backflow?
While it contains a tight-seating check valve, most local codes require an additional dedicated backflow preventer, such as a Watts 9D, installed upstream of the regulator.

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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.