氣動(dòng)襯氟蝶閥，屬(shǔ)于對夾/法蘭(lán)式襯氟蝶閥(fá)系列；它⛱️由氣(qì)動🚶執 行機構(gou)和襯氟蝶閥(fá)組成，閥體部(bu)分可與㊙️氣動(dòng)🌏、電動執行機(jī)構選配 組合(he)，組成各種不(bú)同類型的蝶(die)閥品種規格(gé)。該産🔞品按其(qí)襯裡材質 分(fèn)為全襯氟蝶(die)閥和半襯氟(fú)蝶💔閥。全襯氟(fu)蝶閥由于襯(chèn)氟蝶閥🔆閥體(ti)内 腔均有抗(kàng)腐蝕的氟塑(su)料(PTFE/FEP/PFA) 制成🧑🏽‍🤝‍🧑🏻襯裡(li)， 同時對蝶闆(pǎn) 和閥杆裡進(jin)行包襯氟塑(sù)料，并在閥基(jī)面🏃🏻‍♂️内設有矽(xī)橡膠襯墊，用(yong)來調 節💋閥座(zuo)基面預緊，以(yǐ)達到與蝶👄闆(pǎn)密封性能。閥(fa)體📧采用分離(lí)式，閥軸 兩端(duan)的密封由蝶(dié)闆與閥座之(zhī)間的旋轉基(jī)面靠氟橡膠(jiao)圈來控制，從(cong) 而使閥軸不(bu)與腔内介質(zhi)接觸，保證了(le)密封無洩漏(lou)。

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.