Electric Flat Gate Valve

(1) Low flow resistance. The internal medium channel of the valve body is straight through, and the medium flows in a straight line with low flow resistance. (2) It is more effortless to open and close. Compared to globe valves, the direction of gate movement is perpendicular to the direction of medium flow, whether it is open or closed. (3) High height, long opening and closing time. The opening and closing stroke of the gate is relatively large, and the lowering is carried out through the screw. (4) Water hammer phenomenon is not easy to occur. The reason is that the shutdown time is long. (5) The medium can flow in any direction on both sides, making it easy to install. The two sides of the gate valve channel are symmetrical. (6) The structural length (the distance between the two connecting end faces of the shell) is relatively small. (7) The sealing surface is prone to wear and tear, which affects its use. When opening and closing, the two sealing surfaces of the gate and the valve seat rub and slide against each other, which will easily cause scratches and wear under the action of the medium Pressure, affecting the sealing performance and shortening the use. (8) The price is relatively expensive. There are many contact sealing surfaces, and the processing is complex. The sealing surface on the gate seat is not easy to process, and there are many parts. (9) Simple form, short structural length, and wide applicability. (10) The structure is compact, the valve has good rigidity, the channel is smooth, the flow resistance is small, the sealing surface is made of stainless steel and hard alloy, the use is long, PTFE packing is used, the sealing is reliable, and the operation is lightweight and flexible.