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Water Safety & Flow Control

ST375, ST500, ST750, ST1000, ST1250, ST1500 and ST2000

Standard Duty Mechanical Float Valves


3/8 to 2 in. (10 to 50mm)


Series ST375, ST500, ST750, ST1000, ST1250, ST1500, ST2000 Standard Duty Mechanical Float Valves are used in commercial, industrial, and agricultural applications for controlling water flow. It has a bronze body construction with male NPT threaded end connections on 3/8 to 1 in. (10 to 25mm) models and female NPT inlet-open outlet on 1 1/2 to 2 in. (40 to 50mm) models, cotter pin pivot arm assembly, replaceable seals, and replaceable plungers. This series is ideal for use in air conditioning, refrigeration, and irrigation systems. Maximum Pressure: 125psi (8.7 bar).

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Disclaimer: Watts product dimensions in U.S. customary units and metric are approximate and are provided for reference only. For precise measurements, please contact Watts Technical Service. Watts reserves the right to change or modify product design, construction, specifications, or materials without prior notice and without incurring any obligation to make such changes and modifications on Watts products previously or subsequently sold.

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