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Water Safety & Flow Control



Hot Water Temperature Control Valves


1/2 to 1 in. (15 to 20mm)


Series 1170C-M2 Hot Water Temperature Control Valves are used in commercial, residential, and institutional applications to reduced the temperature of the hot water supply. It consists of a bronze body construction with union thread (-UT), union solder (-US), PEX or CPVC end connections, integral check valves, copper thermostat assembly, stainless steel disc and spring, Buna-N or EPDM O-rings, and Udel pistons. Series 1170C-M2 features a double-throttling design that combines the control of hot and cold water to provide a sensitive response to changes in water temperature passing through the mixing chamber. Series 1170C-M2 temperature range: 90°F to 120°F (32°C to 49°C). Maximum Pressure: 150psi (10 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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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.

Learn About

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.