Watts 0009820 Valve

The Watts 0009820 is a high-performance 1/2 inch water pressure reducing valve designed for commercial and industrial applications requiring precise downstream regulation. This model, often designated as the Watts 26AC or LF26A, is the direct lead-free replacement for the legacy 0103510 part number. Engineered for durability, it handles a 300 PSI maximum inlet pressure and features an adjustable delivery range typically set between 10 to 125 PSI. The 26AC series is widely utilized as a pilot regulator for larger control valves or as a standalone small-bore HVAC pressure regulator. Its internal strainer protects the seat from debris, ensuring consistent performance in diverse mechanical systems. For contractors servicing older installations, this unit provides a drop-in solution for the discontinued 26AC-1/2, maintaining system integrity without the need for extensive repiping or modifications to the water pressure regulator assembly.

Technical Benefits

• Dual-Stage Protection: Built-in stainless steel strainer prevents particulate matter from fouling the valve seat, extending service life in grit-heavy systems.
• Wide Adjustment Range: Capable of managing 10-125# outlet pressure, making it versatile for both low-pressure domestic lines and high-pressure pilot sensing lines.
• Lead-Free Construction: Complies with all current potable water standards, serving as the official updated version for 0103510.
• Robust Body Design: The Watts LF26A-10-125-1/2 features a rugged housing rated for 300# inlet loads, preventing failure during high-side pressure spikes.

Common Questions

Is the 0009820 compatible with the older 0103510 model?
Yes, the 0009820 is the designated lead-free successor to the 0103510 and LF26A-10-125-1/2, offering the same form factor and 1/2" NPT connections for seamless replacement.

What is the maximum incoming pressure this valve can handle?
This Watts water regulator is rated for a maximum inlet pressure of 300 PSI, providing a significant safety margin for most commercial water service entries.

Can this valve be used for steam service?
No, the Watts 26AC series is specifically engineered for water applications. For steam or air service, specific high-temperature elastomers and different internal trim would be required.

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.