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Cast Iron Silent Check Valves, Flanged Ends


2 to 6 in. (50 to 150mm)


Series ICVF-125 Cast Iron Silent Check Valves are used in commercial and industrial HVAC applications to prevent water hammer and reverse fluid flow in water lines. Their conical spring design allows the closure disc to travel more distance than other valves of this style, allowing a greater flow coefficient (Cv). Series ICVF-125 features a cast iron body with bronze disc, seat & bushing and stainless steel spring & set screws. Maximum Pressure: 200psi (13.8 bar) CWP (non-shock).

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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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Additional Information

Danger – Scalding Lurks!

Every year, thousands of people suffer serious thermal shock or scalding injuries in their bathtubs, sinks and showers.

Click here for informative resources to help you protect against these dangers.

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Thermostatic Mixing Valves

Every year thousands suffer injuries as a result of hot water scalding and thermal shock injuries. Thermostatic mixing valves protect against these dangers.

To learn more about thermostatic mixing valves and how they work, click here.