Germany Warmer Hvac Controls Products
Electric switch function: open or close the core of electric control valve according to the control signal of room thermostat; 
Dynamic balance function: when opened, the valve is able to dynamically balance the pressure change of the system within the range of operating differential pressure, so that the flow is always maintained constant regardless of system pressure fluctuation.
Keep the flow rate constant at the design flow: It can be set when leaving factory according to the design flow of end equipment, so that the flow rate is always maintained at the design flow required by the end equipment.
Technical parameters of electrothermal actuator
The actuator is used to switch small valves or control PDM execution, acting as the two position control and stable control of the closed return valve of water heating system or central air-conditioning water system. In water heating system, it is directly installed on the return pipe or thermo valve body of manifold, when the actuator is power off, the valve will be closed.
 
Paraffin propeller, driven by PTC heating, France imported original propeller
Spring returning ability which closes the valve after power off
No noise while working
The indication of stroke location or opening extent  
The connection and installation of nuts is simple, fast and east for disassembly.
 
Main technical parameters of valve: 
Size range:DN25
Operating pressure:PN16
Flow error: 5%
Shutoff differential pressure:4Bar
Material: The valve body is made of brass; the valve liner is made of stainless steel or aluminum alloy; the valve core is made of NBR; the spring is made of stainless steel and the seal ring is made of NBR
Working medium: Water    Medium temperature:
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