氣動襯(chen)氟蝶閥，屬于對夾(jiá)/法蘭式襯氟蝶閥(fá)系列；它由氣動執(zhí)⭕ 行機構和襯氟蝶(dié)閥組成，閥體部分(fèn)可與氣動、電動執(zhí)行⛷️機構選配 組合(hé)，組成各種不同類(lei)型的蝶閥品種規(guī)格。該産品按其襯(chèn)裡材質 分為全襯(chèn)💁氟蝶閥和半襯氟(fu)蝶閥。全襯氟蝶閥(fa)由于👄襯氟蝶閥閥(fá)體内 腔均有抗腐(fǔ)蝕的氟塑料(PTFE/FEP/PFA) 制成(cheng)襯裡， 同時對蝶闆(pǎn) 和閥杆裡進行包(bao)襯氟塑料，并在閥(fá)基面内設有矽橡(xiang)膠襯墊，用來調 節(jie)🐉閥座基面預緊，以(yǐ)達到與🈚蝶闆密封(feng)性能。閥體采用分(fen)離式，閥軸 兩端的(de)密封由蝶闆與閥(fa)座之間的旋轉基(jī)面靠氟橡膠圈來(lai)控制，從 而使閥軸(zhou)不與腔内㊙️介質接(jiē)觸，保證了密封無(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.