對夾蝶閥 介紹

對夾蝶閥的蝶(die)(die)板(ban)(ban)安裝(zhuang)于(yu)管道的直徑方(fang)向(xiang)。在蝶(die)(die)閥(fa)閥(fa)體圓(yuan)柱形(xing)通(tong)道內(nei)，圓(yuan)盤形(xing)蝶(die)(die)板(ban)(ban)繞著軸線旋轉(zhuan)，旋轉(zhuan)角(jiao)度為0°-90°之間，旋轉(zhuan)到90°時(shi)，閥(fa)門則牌全開(kai)狀態(tai)。此閥(fa)一(yi)般(ban)水平安裝(zhuang)。對夾(jia)式蝶(die)(die)閥(fa)結構簡(jian)單(dan)、體積小、重(zhong)量輕，只由少(shao)數幾個(ge)零件(jian)組成。而且只需(xu)旋轉(zhuan)90°即可(ke)(ke)快速啟閉，操作簡(jian)單(dan)，同時(shi)該閥(fa)門具有良好的流體控(kong)制特(te)性。蝶(die)(die)閥(fa)處于(yu)完全開(kai)啟位置時(shi)，蝶(die)(die)板(ban)(ban)厚度是(shi)介質(zhi)流經閥(fa)體時(shi)唯一(yi)的阻力，因此通(tong)過該閥(fa)門所(suo)產(chan)生的壓(ya)力降很小，故具有較好的流量控(kong)制特(te)性。蝶(die)(die)閥(fa)有彈(dan)密封(feng)(feng)(feng)和金屬的密封(feng)(feng)(feng)兩種密封(feng)(feng)(feng)型式。彈(dan)性密封(feng)(feng)(feng)閥(fa)門，密封(feng)(feng)(feng)圈可(ke)(ke)以鑲嵌(qian)在閥(fa)體上或附在蝶(die)(die)板(ban)(ban)周邊。