氣動襯(chen)氟蝶閥，屬(shǔ)于對夾/法(fǎ)蘭式襯氟(fú)蝶閥系列(liè)；它由✌️氣動(dong)♌執 行機構(gou)和襯氟蝶(dié)閥組成，閥(fá)體部分可(kě)與氣動、電(dian)動執行機(jī)構選配 組(zǔ)合，組成各(ge)種不同類(lei)型的蝶閥(fa)♉品種規格(ge)。該産品按(an)其襯裡材(cai)質 分為全(quan)襯氟蝶閥(fa)和半襯氟(fú)蝶閥。全襯(chèn)氟蝶閥由(yóu)于襯氟蝶(die)閥📱閥體内(nei) 腔均有抗(kàng)腐蝕的氟(fu)塑料(PTFE/FEP/PFA) 制成(cheng)襯裡， 同時(shí)對🔞蝶闆 和(hé)閥杆裡進(jin)行包襯氟(fú)塑料，并在(zai)閥基面内(nei)設有矽橡(xiang)膠襯墊，用(yòng)來調 節☂️閥(fa)座基面預(yù)緊，以達到(dao)與蝶闆密(mi)封性能。閥(fa)體采用分(fèn)離式，閥軸(zhou) 兩端的密(mì)封由蝶闆(pan)與閥座之(zhī)間的旋轉(zhuan)基面靠氟(fu)橡膠圈🈲來(lái)控制，從 而(er)使閥軸不(bú)⛷️與腔内介(jiè)質接觸，保(bao)證了密封(feng)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.