氣動襯氟[Fu]蝶閥，屬于(Yu)對夾/法蘭(Lan)式襯氟蝶閥系列(Lie)；它由氣動執[Zhi] 行機[Ji]構和襯[Chen]氟蝶閥組成，閥體部分可與[Yu]氣動(Dong)、電動執行機[Ji]構選(Xuan)配 組合，組成各種不同類型的蝶閥品[Pin]種規格。該産[Chan]品按其襯裡材質 分為[Wei]全[Quan]襯(Chen)氟蝶閥和半襯氟蝶(Die)閥。全襯氟蝶閥由于(Yu)襯氟蝶[Die]閥閥體[Ti]内 腔[Qiang]均有抗腐蝕的[De]氟塑料(PTFE/FEP/PFA) 制成襯裡， 同時對蝶闆 和閥[Fa]杆裡進行包襯氟塑料，并在閥基面内設有矽橡膠[Jiao]襯(Chen)墊，用來調[Diao] 節閥座基面預緊，以達到(Dao)與蝶闆[Pan]密封[Feng]性能。閥體(Ti)采用分離式，閥(Fa)軸 兩端的密封由蝶闆與(Yu)閥座[Zuo]之間的旋轉基面靠[Kao]氟橡膠圈[Quan]來控[Kong]制，從 而使閥軸不與腔内[Nei]介質接觸，保證(Zheng)了密封無洩漏[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.