Watts 0780013 Valve

The Watts 0780013 (Series 1500) is a 1.5-inch heavy-duty mechanical float valve designed for high-capacity flow control in demanding commercial, industrial, and agricultural environments. Built with a rugged bronze body construction, this 1-1/2" NPT float valve features a machined flange for direct tank wall mounting, ensuring stable operation under high-pressure conditions. With a flow rate performance of approximately 250 GPM at 50 PSI and up to 348 GPM at 100 PSI, it effectively manages liquid levels in cooling towers, evaporative condensers, and large-scale irrigation systems. The assembly includes high-tensile manganese bronze arms with a serrated design for precise, tool-free water level adjustments. Engineered for longevity, the no-jam single lever action and replaceable seals allow for streamlined maintenance in the field. This heavy-duty float valve serves as a direct replacement for legacy 1500 series models, maintaining refrigeration and HVACR system efficiency through reliable make-up water regulation.

• High-Flow Performance: Handles high-capacity water demand with rated flow up to 348 GPM at 100 PSI (maximum 165 PSI).
• Robust Bronze Construction: Heavy-duty bronze body and manganese bronze arms prevent corrosion in industrial water applications.
• Precision Leveling: Serrated adjustment arms allow contractors to set and lock the water line for accurate tank filling.
• Contractor-Grade Durability: Features no-jam lever action and accessible seals for fast, onsite servicing without complete valve removal.
• Versatile Mounting: Integrated machined flange provides superior support against tank walls for stable, vibration-free installation.

What is the maximum pressure and temperature rating for this valve?
The Watts 0780013 is rated for a maximum operating pressure of 165 PSI and can handle water temperatures up to 180°F (82°C), making it suitable for standard cooling and industrial processes.

Is this float valve compatible with potable water systems?
This specific heavy-duty float valve is intended for non-potable water applications such as cooling towers, irrigation, and industrial tanks. It is not designed to comply with low-lead requirements for human consumption.

What size of rod and float should be used with this assembly?
The valve is typically configured with a 3/8"-16 threaded rod. For optimal buoyancy in high-capacity tanks, it is recommended to pair this with a 10-inch or 12-inch copper or plastic float, depending on the specific gravity of the fluid and the required closing force.

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.