氣(qi)動襯氟(fú)蝶閥，屬(shu)于對夾(jiá)/法蘭式(shi)襯氟蝶(die)閥系列(lie)；它由氣(qì)動執 行(hang)機構和(he)襯氟蝶(dié)閥組成(chéng)，閥體部(bù)分可與(yu)氣動、電(diàn)動執行(háng)機構選(xuan)配 組合(he)，組成各(gè)種不同(tóng)類型的(de)蝶閥品(pǐn)種規格(gé)。該産品(pǐn)按其襯(chèn)裡材質(zhì) 分為全(quán)襯氟蝶(die)閥和💃半(ban)襯氟蝶(die)閥。全襯(chèn)氟蝶閥(fá)由于襯(chen)氟蝶閥(fa)👌閥體内(nèi) 腔均有(you)抗腐蝕(shi)的📧氟塑(su)料(PTFE/FEP/PFA) 制成(cheng)✂️襯裡， 同(tóng)時對🆚蝶(dié)闆 和閥(fá)杆裡進(jin)行包襯(chèn)氟塑料(liào)，并在閥(fá)基面内(nèi)設🌏有矽(xi)橡膠襯(chèn)墊，用來(lái)調 節閥(fa)座基面(mian)預緊，以(yi)達到與(yǔ)蝶闆密(mi)封性能(néng)。閥體🧑🏾‍🤝‍🧑🏼采(cǎi)用分離(lí)式，閥軸(zhou) 兩端的(de)密封📱由(you)蝶闆與(yu)閥座之(zhi)間的旋(xuan)轉基面(miàn)靠氟橡(xiang)膠圈來(lai)控制，從(cong) 而使閥(fa)軸不與(yu)腔内🔱介(jiè)質接觸(chu)，保證🌈了(le)密封無(wú)🌍洩漏。

Pneumatic actuator control butterfly valve is YFM patent product， which belong to D671waferandD 641 flange type lined butterfly valve series， consist of pneumatic actuator and lined butterfly valve. These valves are divided into fully lined butterfly valve and half lined butterfly valve according to different lining ways.Fully lined butterfly refers to the PTFE/PFA/FEP seat and disc lined with PTFE/PFA/FEP. There is silicon pad to adjust pre-tighten for keeping the best sealing. valve body is split.The sealing of axis end is controlled by Viton which locate between disc and seat， so that the axis is out of touch medium to ensure the sealing without any leakage.