2寸 DN50 1.6MPa 變頻泵五通止回閥結構具(ju)有止(zhi)回閥(fa)(fa)功(gong)能、接壓力罐接口(kou)，壓力表接口(kou)，壓力傳(chuan)感器(qi)接口(kou)使(shi)用(yong)方(fang)便，此閥(fa)(fa)可采(cai)(cai)用(yong)銅(tong)與不銹鋼(gang)兩材(cai)質(zhi)(zhi)，銅(tong)閥(fa)(fa)外(wai)部(bu)采(cai)(cai)用(yong)鍍鉻外(wai)觀(guan)看起來很(hen)有質(zhi)(zhi)感，外(wai)觀(guan)看上去和不銹鋼(gang)一(yi)樣，不銹鋼(gang)采(cai)(cai)用(yong)304不銹鋼(gang)材(cai)質(zhi)(zhi)，內部(bu)密封采(cai)(cai)用(yong)高檔塑材(cai)王，使(shi)用(yong)壽命(ming)更長！這種類型(xing)的閥(fa)(fa)門(men)的作用(yong)是只允許介質(zhi)(zhi)向(xiang)一(yi)個方(fang)向(xiang)流動(dong)，而且阻止(zhi)方(fang)向(xiang)流動(dong)。通(tong)常這種閥(fa)(fa)門(men)是自動(dong)工作的，在一(yi)個方(fang)向(xiang)流動(dong)的流體(ti)壓力作用(yong)下，閥(fa)(fa)瓣打開；流體(ti)反方(fang)向(xiang)流動(dong)時，由流體(ti)壓力和閥(fa)(fa)瓣的自重合閥(fa)(fa)瓣作用(yong)于閥(fa)(fa)座(zuo)，從而切斷流動(dong)。

2寸 DN50 1.6MPa 變頻泵五通止回閥結構(One-way valve)：止(zhi)(zhi)(zhi)(zhi)回(hui)(hui)(hui)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)又稱單向(xiang)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)或(huo)逆止(zhi)(zhi)(zhi)(zhi)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)，其作(zuo)用(yong)是(shi)防止(zhi)(zhi)(zhi)(zhi)管路中的介(jie)質倒流(liu)(liu)(liu)。水泵吸水管的底閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)也屬于(yu)止(zhi)(zhi)(zhi)(zhi)回(hui)(hui)(hui)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)類(lei)。止(zhi)(zhi)(zhi)(zhi)回(hui)(hui)(hui)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)按結(jie)構(gou)劃分(fen)，可(ke)(ke)(ke)分(fen)為(wei)(wei)(wei)升(sheng)降(jiang)式(shi)(shi)(shi)(shi)(shi)(shi)(shi)止(zhi)(zhi)(zhi)(zhi)回(hui)(hui)(hui)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)、旋啟(qi)式(shi)(shi)(shi)(shi)(shi)(shi)(shi)止(zhi)(zhi)(zhi)(zhi)回(hui)(hui)(hui)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)和(he)(he)蝶式(shi)(shi)(shi)(shi)(shi)(shi)(shi)止(zhi)(zhi)(zhi)(zhi)回(hui)(hui)(hui)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)三(san)(san)種(zhong)(zhong)(zhong)。升(sheng)降(jiang)式(shi)(shi)(shi)(shi)(shi)(shi)(shi)止(zhi)(zhi)(zhi)(zhi)回(hui)(hui)(hui)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)可(ke)(ke)(ke)分(fen)為(wei)(wei)(wei)立式(shi)(shi)(shi)(shi)(shi)(shi)(shi)和(he)(he)臥式(shi)(shi)(shi)(shi)(shi)(shi)(shi)兩種(zhong)(zhong)(zhong)。旋啟(qi)式(shi)(shi)(shi)(shi)(shi)(shi)(shi)止(zhi)(zhi)(zhi)(zhi)回(hui)(hui)(hui)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)分(fen)為(wei)(wei)(wei)單瓣(ban)式(shi)(shi)(shi)(shi)(shi)(shi)(shi)、雙(shuang)瓣(ban)式(shi)(shi)(shi)(shi)(shi)(shi)(shi)和(he)(he)多瓣(ban)式(shi)(shi)(shi)(shi)(shi)(shi)(shi)三(san)(san)種(zhong)(zhong)(zhong)。蝶式(shi)(shi)(shi)(shi)(shi)(shi)(shi)止(zhi)(zhi)(zhi)(zhi)回(hui)(hui)(hui)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)為(wei)(wei)(wei)直通式(shi)(shi)(shi)(shi)(shi)(shi)(shi)、以(yi)上(shang)幾種(zhong)(zhong)(zhong)止(zhi)(zhi)(zhi)(zhi)回(hui)(hui)(hui)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)在連(lian)接(jie)(jie)(jie)形式(shi)(shi)(shi)(shi)(shi)(shi)(shi)上(shang)可(ke)(ke)(ke)分(fen)為(wei)(wei)(wei)螺紋(wen)連(lian)接(jie)(jie)(jie)、法蘭連(lian)接(jie)(jie)(jie)和(he)(he)焊接(jie)(jie)(jie)三(san)(san)種(zhong)(zhong)(zhong)。 　　啟(qi)閉件靠介(jie)質流(liu)(liu)(liu)動和(he)(he)力量(liang)自行開啟(qi)或(huo)關閉，以(yi)防止(zhi)(zhi)(zhi)(zhi)介(jie)質倒流(liu)(liu)(liu)的閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)門叫止(zhi)(zhi)(zhi)(zhi)回(hui)(hui)(hui)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)。止(zhi)(zhi)(zhi)(zhi)回(hui)(hui)(hui)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)屬于(yu)自動閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)類(lei)，主要用(yong)于(yu)介(jie)質單向(xiang)流(liu)(liu)(liu)動的管道(dao)上(shang)，只允(yun)許介(jie)質向(xiang)一個方(fang)向(xiang)流(liu)(liu)(liu)動，以(yi)防止(zhi)(zhi)(zhi)(zhi)發生事(shi)故。編輯本(ben)段結(jie)構(gou)　　止(zhi)(zhi)(zhi)(zhi)回(hui)(hui)(hui)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(Check Valve)：按結(jie)構(gou)劃分(fen)，可(ke)(ke)(ke)分(fen)為(wei)(wei)(wei)升(sheng)降(jiang)式(shi)(shi)(shi)(shi)(shi)(shi)(shi)止(zhi)(zhi)(zhi)(zhi)回(hui)(hui)(hui)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)、和(he)(he)蝶式(shi)(shi)(shi)(shi)(shi)(shi)(shi)止(zhi)(zhi)(zhi)(zhi)回(hui)(hui)(hui)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)三(san)(san)種(zhong)(zhong)(zhong)。升(sheng)降(jiang)式(shi)(shi)(shi)(shi)(shi)(shi)(shi)止(zhi)(zhi)(zhi)(zhi)回(hui)(hui)(hui)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)可(ke)(ke)(ke)分(fen)為(wei)(wei)(wei)立式(shi)(shi)(shi)(shi)(shi)(shi)(shi)和(he)(he)直通式(shi)(shi)(shi)(shi)(shi)(shi)(shi)兩種(zhong)(zhong)(zhong)。旋啟(qi)式(shi)(shi)(shi)(shi)(shi)(shi)(shi)止(zhi)(zhi)(zhi)(zhi)回(hui)(hui)(hui)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)分(fen)為(wei)(wei)(wei)單瓣(ban)式(shi)(shi)(shi)(shi)(shi)(shi)(shi)、雙(shuang)瓣(ban)式(shi)(shi)(shi)(shi)(shi)(shi)(shi)和(he)(he)多瓣(ban)式(shi)(shi)(shi)(shi)(shi)(shi)(shi)三(san)(san)種(zhong)(zhong)(zhong)。蝶式(shi)(shi)(shi)(shi)(shi)(shi)(shi)止(zhi)(zhi)(zhi)(zhi)回(hui)(hui)(hui)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)為(wei)(wei)(wei)碟(die)式(shi)(shi)(shi)(shi)(shi)(shi)(shi)雙(shuang)瓣(ban)、碟(die)式(shi)(shi)(shi)(shi)(shi)(shi)(shi)單瓣(ban)、以(yi)上(shang)幾種(zhong)(zhong)(zhong)止(zhi)(zhi)(zhi)(zhi)回(hui)(hui)(hui)閥(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)在連(lian)接(jie)(jie)(jie)形式(shi)(shi)(shi)(shi)(shi)(shi)(shi)上(shang)可(ke)(ke)(ke)分(fen)為(wei)(wei)(wei)螺紋(wen)連(lian)接(jie)(jie)(jie)、法蘭連(lian)接(jie)(jie)(jie)、焊接(jie)(jie)(jie)和(he)(he)對(dui)夾(jia)式(shi)(shi)(shi)(shi)(shi)(shi)(shi)連(lian)接(jie)(jie)(jie)四種(zhong)(zhong)(zhong)