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泄爆(bao)閥(fa)由(you)閥(fa)體、爆(bao)破(po)膜、夾持(chi)器(qi)、閥(fa)蓋(gai)、重(zhong)(zhong)錘等零部件組(zu)成，爆(bao)破(po)膜片(pian)裝在(zai)夾持(chi)器(qi)中間，與閥(fa)體用(yong)(yong)螺栓(shuan)連(lian)接，系統超壓(ya)時，爆(bao)破(po)膜破(po)裂，瞬間泄壓(ya)，閥(fa)蓋(gai)彈起(qi)(qi)后在(zai)重(zhong)(zhong)力作用(yong)(yong)下復位(wei)。在(zai)更換膜片(pian)時需(xu)垂直向上(shang)翻起(qi)(qi)閥(fa)體及夾持(chi)器(qi)，爆(bao)破(po)膜由(you)用(yong)(yong)戶根據工藝(yi)特性自備