There are two types of commonly used feedwater control valves on boilers: lift type and rotary type. The lifting type is divided into two types: single seat and double seat; The disc and seat of the rotary regulating valve are both cylindrical. Open one small window on each cylinder. When the small windows overlap, the opening of the regulating valve is at its maximum. The more the two small windows are staggered, the smaller the opening. When they are completely misaligned, the opening is zero. The main components of various types of regulating valves include valve bodies, valve seats, valve discs, valve stems, regulating handles, etc. The opening size of regulating valves (valve disc travel or window overlap) is determined by the position of the regulating handle, which can be controlled by a remote controller or an automatic regulator. Product Introduction of ELECTRIC OPERATED FEED-WATER REGULATING VALVE The electric operated feed-water regulating valve is a t…