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氣動(dong)(dong)盲板(ban)閥(fa)(fa)由(you)左(zuo)閥(fa)(fa)體、右閥(fa)(fa)體、絲杠(gang)副、閥(fa)(fa)板(ban)、密(mi)(mi)封(feng)圈(quan)、杠(gang)桿(gan)、氣缸(gang)(gang)等零件組成(cheng),并由(you)底座、支撐柱(zhu)構成(cheng)一個剛性(xing)結構體。閥(fa)(fa)門(men)中(zhong)設有夾(jia)緊(jin)(jin)(jin)、松(song)開氣缸(gang)(gang)和翻(fan)(fan)板(ban)氣缸(gang)(gang),夾(jia)緊(jin)(jin)(jin)、松(song)開氣缸(gang)(gang)通(tong)過杠(gang)桿(gan)副和絲桿(gan)螺旋(xuan)副驅動(dong)(dong)左(zuo)、右閥(fa)(fa)體完成(cheng)松(song)開、夾(jia)緊(jin)(jin)(jin)動(dong)(dong)作,翻(fan)(fan)板(ban)氣缸(gang)(gang)驅動(dong)(dong)閥(fa)(fa)板(ban)完成(cheng)開關動(dong)(dong)作。橡膠密(mi)(mi)封(feng)圈(quan)鑲嵌在閥(fa)(fa)板(ban)上,具有耐溫(wen)高(gao)、密(mi)(mi)封(feng)性(xing)能好、更換(huan)方便、使用(yong)壽命(ming)長等特點。