Flat gate valve

Product structure 

 Nominal diameter: DN50-1000 

 Product model: Z43WF, Z543WF 

 Pressure range: 1.6-10MPa 

 Use of the product 

 (1) The flow resistance is small, and the medium channel inside the valve body is straight. The medium flows in a straight line, and the flow resistance is small. 

 (2) It is more labor-saving when opening and closing, compared with the shut-off valve, because whether it is open or closed, the direction of movement of the gate plate is perpendicular to the direction of medium flow. 

 (3) The height is large, the opening and closing time is long, the opening and closing stroke of the gate is large, and the descent is carried out through the screw. 

 (4) The phenomenon of water hammer is not easy to produce because of the long shutdown time. 

 (5) The medium can flow in any direction on both sides, which is easy to install. The two sides of the gate valve channel are symmetrical. 

 (6) The structural length (the distance between the two connecting ends of the housing) is relatively small. 

 (7) The sealing surface is easy to wear, which affects the use. When opening and closing, the two sealing surfaces of the gate plate and the valve seat rub and slide against each other. Under the action of medium pressure, it is easy to produce abrasion and wear, which affects the sealing ability and shortens the use. 

 (8) The price is relatively expensive, there are more contact sealing surfaces, and the processing is complicated. The sealing surface on the gate seat is not easy to process, and there are many parts. 

 (9) The shape is simple, the structure length is short, and the application is wide. 

 (10) The structure is compact, the valve has good rigidity, the channel flows smoothly, and the flow resistance is small. The sealing surface is made of stainless steel and cemented carbide, and the use is long. PTFE packing is used. The sealing is reliable, and the operation is light and flexible.