Product Category: knife gate valve 
 Product Name: Four pneumatic knife gate valve 
 Product Model: Z673X-16C-DN100 

 An overview of the four-post pneumatic knife gate valve 

 The four cylindrical pneumatic knife gate valve is a valve R & D and production of a strong Germany with the help of compressed air-driven valve. Pneumatic knife gate valve with pneumatic actuator control valves, in order to achieve the valve on and off. Can be divided into upper and lower parts, upper part of the pneumatic actuator, the lower half of the valve. Note model in the product use: pneumatic knife gate valve opening and closing parts of the gate, the gate's direction of motion perpendicular to the fluid direction, manual knife gate valve can only be fully open and fully closed, can not be adjusted and cut expenditure. Gate two sealing surface, the most common mode of gate valve sealing surface formed two wedge-shaped wedge angle with the valve parameters, usually 50, the wedge type knife gate valve can be made into a whole , called the rigid gate; can also be made to produce small deformation of the gate, in order to improve their craft, to make up for the sealing surface angle deviation in the process, this gate is called the flexible gate type knife gate valve is closed the sealing surface can only rely on media pressure to seal, to rely on media pressure on the sealing surface of the ram pressure to the other side of the seat to ensure the sealing surface of the seal, which is self-sealing most of the knife gate valve is the adoption of compulsory sealed, the valve is closed, we must rely on external force to ram pressure to the valve seat to ensure that the sealing surface of the seal. 

 The four-post pneumatic knife gate valve main purpose 

 For mine plant preparation, slagging, urban sewage treatment, food, paper, pharmaceutical, oil, chemical oil, water, steam pipes on the road, water, mud, connect or disconnect the line of gold powder , ores, slag, slime, pulp, wood pulp, tailings, fibers, dust, chemicals, sewage treatment, sedimentation tanks, asphalt, silos, export, fruits, grains, slaughter plant wastewater and other media. 

 Implementation of standards of four-post pneumatic knife gate valve 

 Design and manufacture of: JB/T8691-1998 
 Structure length: GB/T15188.2-94 
 Flange connection: GB/T9113.1-2000 to JB/T79-94 
 Testing and Acceptance: with GB/T13927-92