Suit for hot or cold water, gas, air, oils, low viscosity fluids, hydrocarbons, gasoline, kerosene, or engine fuel. Department of fan-coil electric valve suitable for wind machine pipe flow on-off control .The valve body is brass forging, Drives using hysteresis step motor as power. Open valve,after the power off , spring is reset,(After the failure of valve automatically closes )with manual valve operating mechanism is one of the most commonly used electric valve of central air conditioning system. Body valve: Brass(forging) Valve stem: stainless steel, Manufacturer: LSIJN