氣動(dòng)三偏心硬(yìng)密封蝶閥是在二偏心硬密封(fēng)蝶閥(fá)基礎上生(shēng)成一 個角度(密(mì)封面為斜錐面(miàn))，從而(ér)形(xíng)成三偏(piān)心硬密封(fēng)蝶閥。該結(jié)構 在啟閉(bì)過程(chéng)中無(wú)機械磨損(sǔn)和(hé)擦傷，其(qí)關閉力矩小(xiǎo)、切(qiē)斷性(xìng)能好、 使用(yòng)壽命長，同時具(jù)有調節和切斷(duàn)兩種功能(néng)。 本系(xì)列産品(pǐn)廣泛應(yīng)用于(yú)石油(yóu)、化工、電力、冶金、環保、輕 紡(fǎng)、造紙(zhǐ)等工業部門的自動(dòng)化控(kòng)制(zhì)系(xì)統中。适用于液體、氣(qì)體、 煤(méi)氣、天然氣(qì)、蒸汽(qì)等介質進(jìn)行截止或調節(jiē)流量(liàng)控制。 

the pneumatic tri-eccentric hard seal butterfly valve is based on the two-eccentric hard seal butterfly valve to generate an angle(the sealing surface is an inclined cone) ， thus forming the tri-eccentric hard seal butterfly valve.the structure has no mechanical wear and scratch in the process of opening and closing， small closing torque， good cutting performance and long service life， as well as has two functions of adjustment and cutting. this series of products are widely used in the automatic control system of petroleum， chemical industry， electric power， metallurgy， environmental protection， light textile， papermaking and other industrial sectors. in addition， it's suitable for liquid， gas， coal gas， natural gas and steam to cut of for regulate flowcontrol.