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法蘭(lan)襯(chen)氟蝶閥(fa)體積小(xiao)、重(zhong)量輕(qing)、結構(gou)簡(jian)單(dan)的優點(dian),與同參數(shu)閘閥(fa)比(bi)較,平均減輕(qing)重(zhong)量達30-50％,蝶板(ban)旋轉90°即可實現啟、閉過程,又(you)由(you)于轉軸兩側蝶板(ban)受介質作用力(li)近似(si)相等,轉矩(ju)(ju)相反,因此啟閉力(li)矩(ju)(ju)較小(xiao).
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