型號規格H41W
公稱通徑15~200mm
壓力范圍1.0~2.5MPa
適用介(jie)(jie)質(zhi)醋酸等腐蝕性介(jie)(jie)質(zhi)、 氧化性腐蝕介(jie)(jie)質(zhi)

黃銅升降(jiang)式(shi)止(zhi)(zhi)(zhi)(zhi)回閥(fa)(fa)(fa)是指依(yi)靠(kao)介質本身流(liu)動(dong)而自動(dong)開、閉閥(fa)(fa)(fa)瓣，用(yong)來防(fang)止(zhi)(zhi)(zhi)(zhi)介質倒(dao)流(liu)的(de)(de)閥(fa)(fa)(fa)門，又(you)稱逆止(zhi)(zhi)(zhi)(zhi)閥(fa)(fa)(fa)、單向閥(fa)(fa)(fa)、逆流(liu)閥(fa)(fa)(fa)和背(bei)壓閥(fa)(fa)(fa)。黃銅升降(jiang)式(shi)止(zhi)(zhi)(zhi)(zhi)回閥(fa)(fa)(fa)屬(shu)于一種自動(dong)閥(fa)(fa)(fa)門，其(qi)主要(yao)(yao)作用(yong)是防(fang)止(zhi)(zhi)(zhi)(zhi)介質倒(dao)流(liu)、防(fang)止(zhi)(zhi)(zhi)(zhi)泵及驅動(dong)電動(dong)機反(fan)轉，以(yi)及容器介質的(de)(de)泄放。止(zhi)(zhi)(zhi)(zhi)回閥(fa)(fa)(fa)還可(ke)用(yong)于給其(qi)中的(de)(de)壓力可(ke)能升至超過系統壓的(de)(de)輔(fu)助系統提供補給的(de)(de)管(guan)路上(shang)。止(zhi)(zhi)(zhi)(zhi)回閥(fa)(fa)(fa)主要(yao)(yao)可(ke)分為旋啟式(shi)止(zhi)(zhi)(zhi)(zhi)回閥(fa)(fa)(fa)（依(yi)重(zhong)心旋轉）與(yu)升降(jiang)式(shi)止(zhi)(zhi)(zhi)(zhi)回閥(fa)(fa)(fa)（沿軸線移動(dong)）。

止(zhi)回(hui)(hui)(hui)閥(fa)：按結構劃分(fen)，可(ke)分(fen)為升降(jiang)式(shi)(shi)止(zhi)回(hui)(hui)(hui)閥(fa)、旋啟式(shi)(shi)止(zhi)回(hui)(hui)(hui)閥(fa)和(he)蝶(die)式(shi)(shi)止(zhi)回(hui)(hui)(hui)閥(fa)三(san)種(zhong)。升降(jiang)式(shi)(shi)止(zhi)回(hui)(hui)(hui)閥(fa)可(ke)分(fen)為立(li)式(shi)(shi)和(he)直通式(shi)(shi)兩種(zhong)。旋啟式(shi)(shi)止(zhi)回(hui)(hui)(hui)閥(fa)分(fen)為單(dan)瓣(ban)(ban)式(shi)(shi)、雙瓣(ban)(ban)式(shi)(shi)和(he)多瓣(ban)(ban)式(shi)(shi)三(san)種(zhong)。蝶(die)式(shi)(shi)止(zhi)回(hui)(hui)(hui)閥(fa)為蝶(die)式(shi)(shi)雙瓣(ban)(ban)、蝶(die)式(shi)(shi)單(dan)瓣(ban)(ban)、以上幾種(zhong)止(zhi)回(hui)(hui)(hui)閥(fa)在連接(jie)(jie)形式(shi)(shi)上可(ke)分(fen)為螺紋連接(jie)(jie)、法蘭連接(jie)(jie)、焊(han)接(jie)(jie)和(he)對夾式(shi)(shi)連接(jie)(jie)四(si)種(zhong)。