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Two-Way Motorized Valve is primarily used in vacuum steam heating applications. These valves are design to eliminate leaks and costly downtime ordinarily associated with packing type valves. Heat-Timer offers a large selection of bellow-valve sizes. However, there are two actuator sizes available. The actuators are pre-selected based on the valve size. Motorized Valves are used to control the flow of hot water, chill water in heating, cooling or air-conditioning applications, so as to control room temperature indirectly. It is made up of Actuator and Valve Body. Specifications of Two-way Motorized Valve can be summarized as:1)SIZE: 1/2'', 3/4'', 1'';2)DN: 15, 20, 25;3)Nominal pressure :PN ≤1.6MPa;4)Applicable medium: gas, water, oil ect.;5)Applicable temperature : -20℃≤T≤120℃. A motorized valve is a valve type that uses an electric motor to open or close its mechanism. This type of valve is ideally suited to very large valve types or remote fluid control applications such as aircraft deicing, agricultural irrigation, and automated fire suppression. Features of Two-way Motorized Valve can be summarized as:1)Mini Dimension, suitable for small equipment ;2)Patent technology---flexible sealing ;3)Manual override is simple and convenient ;4)High performance/price ratio;5)IP67 and Damp-proof are available ;6)Modulating valve is also available(coming soon). The Valve is closed, configurations of valve body are closed off; The thermostat (NTC) transfers a signal to actuator that will connect to power, and then open valve, input hot water or freezed water to fan coil unit, if the room temperature reaches to set-point, thermostat transfers a signal to actuator to cut off the power, and spring switch returns, valve is closed, and the hot or freeze water is block to fan coil unit. Therefore, the room temperature could be controlled in the set-point through valve opened or closed.