Watts 0009118 Valve

The Watts 0009118 (also identified as LFU5B-Z3-3/4) is a heavy-duty water pressure reducing valve designed for demanding commercial, industrial, and residential water distribution systems. This 3/4 inch lead free regulator features a high-capacity cast copper silicon alloy body and a rugged Z3 sealed spring cage, making it ideal for accessible outdoor pits or indoor mechanical rooms. Engineered to handle a maximum supply pressure of 300 PSI, it effectively stabilizes downstream flow to a field-adjustable range of 25 to 75 PSI. The internal thermal expansion bypass prevents high-pressure spikes in closed systems, while the integral stainless steel strainer protects the replaceable seat module from pipe scale and debris. This unit is fully serviceable in-line, allowing technicians to perform maintenance without disturbing the pipe connections, ensuring maximum uptime for critical plumbing infrastructure.

• Lead Free Construction: Complies with NSF/ANSI 61 and 372 standards for potable water safety.
• High-Temperature Durability: Equipped with a reinforced EPDM diaphragm rated for temperatures up to 160°F.
• In-Line Serviceability: Features a replaceable seat module and removable strainer for rapid maintenance.
• Environmental Protection: The sealed spring cage with stainless steel screws resists corrosion in damp environments or outdoor vaults.
• Thermal Management: Integrated bypass feature protects downstream fixtures from thermal expansion pressure.

What is the difference between the 0009118 and the standard U5B model?
The 0009118 belongs to the LFU5B-Z3 series, which utilizes lead-free materials and the Z3 sealed cage design specifically for enhanced durability in harsh environments compared to older legacy versions.

Can this valve be installed in any orientation?
Yes, this 3/4" water regulator is designed for versatile installation and can be mounted either horizontally or vertically (upright or inverted) depending on the clearance in your mechanical space.

How do I adjust the pressure setting for this unit?
To adjust the standard 50 PSI factory setting, loosen the lock nut on the spring cage and turn the adjusting bolt clockwise to increase downstream pressure or counterclockwise to decrease it.

This item is not eligible for free shipping.

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.