国产午夜福利短视频-国产精品刘玥久久一区-亚洲无线一二三四区手机-国产网站视频-成人av黄色-欧美城天堂网址-性色蜜桃臀x66av-免费无码观看的av在线播放-久久国产精品成人片免费-天天噜噜噜噜噜噜-中文不卡视频-人人妻人人爽人人狠狠-四虎成人久久精品无码-久草视频免费看-久久视精品

Pneumatic fluorine lined butterfly valve adopts ptFE lined butterfly plate with spherical sealing surface, pneumatic fluorine lined butterfly valve is easy to operate, tight sealing performance, extend the service life;It can be used to cut off or adjust the flow quickly.Pneumatic lined tetrafluoro-butterfly valves are suitable for situations where reliable sealing and good regulation characteristics are required.The valve body adopts split type, the sealing of both ends of the valve shaft is controlled by the fluorinated rubber on the rotary base surface between the butterfly plate and the seat;Ensure that the valve shaft is not in contact with the fluid medium in the cavity.Pneumatic lined tetrafluoro-butterfly valve is widely used in the transportation of liquid and gas (including vapor) in various types of industrial pipelines, the use of serious corrosive medium, such as: sulfuric acid, hydrofluoric acid, phosphoric acid, chlorine gas, strong alkali, aqua aqua and other corrosive medium.

Product model: D641F
Nominal diameter: DN50-DN600
Material of valve body: WCB, 304, 316
Connection: clamping, flanged, lug clamping
Pressure classes: PN1.0mpa, PN1.6mpa
Seat seal: PTFE: -30℃ ~ 140℃
Valve plate material: WCB, 304, 316 lined PTFE
Stem material: stainless steel 410, 304
Suitable medium: water, liquid, gas, oil, powder, steam, caustic medium.