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The VS series valves with spring return function are used in HAVC system to control the flow of hot and/or cold water, treated water (Max.50% Glycol Solutions) applications are also permissible.

VS valve is one type of control valve that can do on/off control refer to customer’s demands. The actuator has the special function that if the power is off, the valve will return to original position by spring. This is a safe and energy saving function to customers.

In addition, this valve is capable of handling greater differential pressures without water-hammer. Recommended thermostat including T6818, T6800, T6820 and T6861 series

Note:
This Series Products are not fit for dissolved oxygen application.

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