Pneumatic type knife gate valve technical characteristics, and the matters needing attention when using

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the pneumatic valve type disc by using the knife, it has good shearing action, the most suitable for paste, powder materials, such as fiber is difficult to control the fluid flow, widely used in papermaking, petrochemical, mining, water drainage, food and other industries. Has a variety of pneumatic valve seat to choose from, and can be on the basis of field control requirements, equipped with electric or pneumatic actuators, pneumatic valve automation operation. Material: cast iron, carbon steel, stainless steel size range: DN ~ DN: maximum pressure. MPa pneumatic valve type disc by using the knife, knife switches has good shearing action, the most suitable for paste, powder materials, such as fiber is difficult to control the fluid flow, widely used in papermaking, petrochemical, mining, water drainage, food and other industries. Has a variety of pneumatic valve seat to choose from, and can be on the basis of field control requirements, equipped with electric or pneumatic actuators, pneumatic valve automation operation. Material: cast iron, carbon steel, stainless steel size range: DN ~ DN: maximum pressure. MPa pneumatic type knife gate valve matters needing attention in the product use and its characteristics: pneumatic type knife gate valve opening and closing is ram, ram movement direction perpendicular to the direction of flow and the pneumatic type knife gate valve can only be fully open and close, not to adjust and throttling. Sealing face has two gate, two of the most commonly used model of pneumatic valve gate sealing surface form a wedge, the wedge Angle vary with parameters of pneumatic valve, usually, pneumatic type wedge knife gate valve disc can be made into a whole, is called a rigid disc; Can also make it generates trace of deformation of ram, in order to improve the manufacturability, make up for the sealing surface Angle in the process of our processing deviation, the pneumatic type damper is called elastic disc knife gate valve is closed, sealing surface can only rely on medium pressure to seal, that depend on medium pressure, the disc will be to the other side of the pneumatic valve seat sealing surface pressure to ensure that the seal face seal, this is the seal. Most of the pneumatic type knife gate valve is sealed with mandatory, the pneumatic valve is closed, to rely on outside force forced the ram pressure to the pneumatic seat, to ensure the sealing surface sealing.