Темный стержень пневматического ножа задвижки

Exterior structure lugged 、 plum、round nominal diameter DN50-DN1200 Nominal pressure GB, ANSI, JIS, DIN, BS Air pressure 0.4-0.8Mpa Material cast steel、stainless steel Disc2Cr13、201、304、316、316L Connection flange 、wafer Seat ring NBR, EPDM, PTFE、 2Cr13、 body seal hard alloy Sealing filler PTFE Media swage、power、 paper pulp Four-column-type pneumatic knife gate valve that includes soft seal and hard seal is a new structure .Soft seal with activities seat and changeable rubber ring composition can easily replace damage seal ring to achieve sealing requirement well, and can be made of PTFE seals according to customer's demands, and can achieve good sealing requirements. It completely makes up for past PTFE difficult to seal and processing inconvenient ,and yoke is casted into a model using structure to valve with better robustness and usability. It's suitable for paper making, mining, sewage, chemical industry, food industry.