氣(qi)動襯氟蝶閥，屬(shǔ)于對夾/法蘭式(shi)襯氟蝶閥系列(lie)；它由氣動執 行(háng)機構和襯氟蝶(die)閥組成，閥體部(bu)分可與🙇‍♀️氣動、電(dian)動執行機構選(xuǎn)配🤩 組合，組成各(gè)種不同類型的(de)蝶閥🔞品種規格(gé)。該産☀️品按其🍓襯(chèn)裡材質 分為全(quán)襯🚶氟蝶閥和半(ban)襯氟蝶閥。全襯(chen)氟蝶閥由于襯(chen)氟蝶閥🥰閥體内(nei) 腔均有抗腐蝕(shi)的氟塑料(PTFE/FEP/PFA) 制成(chéng)襯裡， 同時對蝶(dié)闆 和閥杆裡進(jìn)行包襯氟塑料(liào)，并在閥基面内(nei)設有矽橡膠襯(chen)墊，用來調 節閥(fa)座基面預緊，以(yǐ)達到與蝶闆密(mi)封性能。閥體采(cǎi)用分離式，閥軸(zhou)🚶‍♀️ 兩端的密封由(yóu)蝶闆與閥座之(zhī)間的旋轉基面(mian)靠氟橡膠圈來(lái)控制，從 而使閥(fá)軸不與腔内介(jiè)質接觸，保證了(le)密封無❗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.