想必對于閥門有(you)所了解的(de)(de)人(ren)大概(gai)都知(zhi)道硬(ying)(ying)密封(feng)(feng)(feng)(feng)蝶(die)(die)閥，硬(ying)(ying)密封(feng)(feng)(feng)(feng)蝶(die)(die)閥是一種廣泛運(yun)用于工(gong)業生(sheng)產(chan)(chan)領(ling)域中的(de)(de)蝶(die)(die)閥之一。硬(ying)(ying)密封(feng)(feng)(feng)(feng)蝶(die)(die)閥根據驅動方式(shi)的(de)(de)不(bu)同(tong)可以(yi)(yi)分(fen)為手動硬(ying)(ying)密封(feng)(feng)(feng)(feng)蝶(die)(die)閥，電動硬(ying)(ying)密封(feng)(feng)(feng)(feng)蝶(die)(die)閥，氣動硬(ying)(ying)密封(feng)(feng)(feng)(feng)蝶(die)(die)閥和蝸輪傳動硬(ying)(ying)密封(feng)(feng)(feng)(feng)蝶(die)(die)閥。根據連接(jie)方式(shi)的(de)(de)不(bu)同(tong)可以(yi)(yi)分(fen)為法蘭硬(ying)(ying)密封(feng)(feng)(feng)(feng)蝶(die)(die)閥，焊接(jie)硬(ying)(ying)密封(feng)(feng)(feng)(feng)蝶(die)(die)閥，螺紋硬(ying)(ying)密封(feng)(feng)(feng)(feng)蝶(die)(die)閥。近年來，我國市場(chang)上出現了不(bu)同(tong)材料(liao)的(de)(de)金(jin)屬(shu)硬(ying)(ying)密封(feng)(feng)(feng)(feng)蝶(die)(die)閥。金(jin)屬(shu)硬(ying)(ying)密封(feng)(feng)(feng)(feng)蝶(die)(die)閥采用先進的(de)(de)三偏心密封(feng)(feng)(feng)(feng)結構(gou)，具(ju)有(you)良好的(de)(de)密封(feng)(feng)(feng)(feng)性能(neng)，并且保證閥座和蝶(die)(die)板之間(jian)不(bu)會產(chan)(chan)生(sheng)摩擦。金(jin)屬(shu)硬(ying)(ying)密封(feng)(feng)(feng)(feng)蝶(die)(die)閥的(de)(de)密封(feng)(feng)(feng)(feng)圈(quan)是由不(bu)銹鋼制成，這與傳統的(de)(de)硬(ying)(ying)密封(feng)(feng)(feng)(feng)蝶(die)(die)閥采用普(pu)通(tong)碳鋼等金(jin)屬(shu)材料(liao)不(bu)同(tong)，具(ju)有(you)良好的(de)(de)耐腐蝕，耐磨(mo)損和使(shi)用壽命長的(de)(de)特點。
