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單向閥DRV8-1-10/V2可快速發貨

更新時間:2024-08-26 點擊量:151


單(dan)(dan)向(xiang)閥(fa)(fa)的(de)安裝(zhuang)的(de)話(hua)通常(chang)安裝(zhuang)在水(shui)平的(de)管道(dao)上,也可(ke)以再垂直的(de)地方安裝(zhuang)。只是(shi)這種閥(fa)(fa)門是(shi)單(dan)(dan)向(xiang)性的(de),所(suo)以有(you)(you)規定好(hao)安裝(zhuang)的(de)方向(xiang),閥(fa)(fa)體上也有(you)(you)標注(zhu)介質流向(xiang)的(de)標志(zhi)。單(dan)(dan)向(xiang)閥(fa)(fa)在關(guan)閉時,如果(guo)快速(su)的(de)話(hua)可(ke)能會引起水(shui)錘(chui)的(de)現象,破(po)壞管道(dao),造成事故,所(suo)以選擇單(dan)(dan)向(xiang)閥(fa)(fa)的(de)話(hua)要了解工(gong)況才可(ke)以。單(dan)(dan)向(xiang)閥(fa)(fa)常(chang)用的(de)種類(lei)有(you)(you)彈簧式單(dan)(dan)向(xiang)閥(fa)(fa);重(zhong)力式單(dan)(dan)向(xiang)閥(fa)(fa);旋啟式單(dan)(dan)向(xiang)閥(fa)(fa)等。

單(dan)(dan)(dan)向(xiang)(xiang)(xiang)(xiang)閥(fa)(fa)(fa)又稱(cheng)止回(hui)閥(fa)(fa)(fa)或(huo)逆止閥(fa)(fa)(fa)。用(yong)(yong)(yong)于(yu)液(ye)壓(ya)(ya)(ya)系統中(zhong)防止油(you)(you)(you)(you)流(liu)反(fan)(fan)(fan)向(xiang)(xiang)(xiang)(xiang)流(liu)動(dong)(dong),或(huo)者用(yong)(yong)(yong)于(yu)氣動(dong)(dong)系統中(zhong)防止壓(ya)(ya)(ya)縮(suo)空氣逆向(xiang)(xiang)(xiang)(xiang)流(liu)動(dong)(dong)。單(dan)(dan)(dan)向(xiang)(xiang)(xiang)(xiang)閥(fa)(fa)(fa)有直(zhi)通式(shi)(shi)和直(zhi)角(jiao)(jiao)式(shi)(shi)兩(liang)種。直(zhi)通式(shi)(shi)單(dan)(dan)(dan)向(xiang)(xiang)(xiang)(xiang)閥(fa)(fa)(fa)用(yong)(yong)(yong)螺紋連接(jie)安裝在(zai)管路上。直(zhi)角(jiao)(jiao)式(shi)(shi)單(dan)(dan)(dan)向(xiang)(xiang)(xiang)(xiang)閥(fa)(fa)(fa)有螺紋連接(jie)、板式(shi)(shi)連接(jie)和法(fa)蘭連接(jie)三種形(xing)式(shi)(shi)。液(ye)控(kong)(kong)單(dan)(dan)(dan)向(xiang)(xiang)(xiang)(xiang)閥(fa)(fa)(fa)也稱(cheng)閉(bi)鎖閥(fa)(fa)(fa)或(huo)保(bao)壓(ya)(ya)(ya)閥(fa)(fa)(fa),它與(yu)單(dan)(dan)(dan)向(xiang)(xiang)(xiang)(xiang)閥(fa)(fa)(fa)相同,用(yong)(yong)(yong)以防止油(you)(you)(you)(you)液(ye)反(fan)(fan)(fan)向(xiang)(xiang)(xiang)(xiang)流(liu)動(dong)(dong)。但(dan)在(zai)液(ye)壓(ya)(ya)(ya)回(hui)路中(zhong)需(xu)要油(you)(you)(you)(you)流(liu)反(fan)(fan)(fan)向(xiang)(xiang)(xiang)(xiang)流(liu)動(dong)(dong)時(shi)又可(ke)利用(yong)(yong)(yong)控(kong)(kong)制油(you)(you)(you)(you)壓(ya)(ya)(ya),打開單(dan)(dan)(dan)向(xiang)(xiang)(xiang)(xiang)閥(fa)(fa)(fa),使油(you)(you)(you)(you)流(liu)在(zai)兩(liang)個方向(xiang)(xiang)(xiang)(xiang)都可(ke)流(liu)動(dong)(dong)。液(ye)控(kong)(kong)單(dan)(dan)(dan)向(xiang)(xiang)(xiang)(xiang)閥(fa)(fa)(fa)采用(yong)(yong)(yong)錐形(xing)閥(fa)(fa)(fa)芯(xin),因此密封性能好(hao)。在(zai)要求封閉(bi)油(you)(you)(you)(you)路時(shi),可(ke)用(yong)(yong)(yong)此閥(fa)(fa)(fa)作(zuo)為(wei)油(you)(you)(you)(you)路的單(dan)(dan)(dan)向(xiang)(xiang)(xiang)(xiang)鎖緊而起保(bao)壓(ya)(ya)(ya)作(zuo)用(yong)(yong)(yong)。液(ye)控(kong)(kong)單(dan)(dan)(dan)向(xiang)(xiang)(xiang)(xiang)閥(fa)(fa)(fa)控(kong)(kong)制油(you)(you)(you)(you)的泄(xie)(xie)漏方式(shi)(shi)有內(nei)泄(xie)(xie)式(shi)(shi)和外泄(xie)(xie)式(shi)(shi)二種。在(zai)油(you)(you)(you)(you)流(liu)反(fan)(fan)(fan)向(xiang)(xiang)(xiang)(xiang)出(chu)口無背壓(ya)(ya)(ya)的油(you)(you)(you)(you)路中(zhong)可(ke)用(yong)(yong)(yong)內(nei)泄(xie)(xie)式(shi)(shi);否則需(xu)用(yong)(yong)(yong)外泄(xie)(xie)式(shi)(shi),以降低控(kong)(kong)制油(you)(you)(you)(you)壓(ya)(ya)(ya)力。

單向(xiang)閥(fa)(fa)(fa)就是(shi)止(zhi)回(hui)閥(fa)(fa)(fa) 旋啟式止(zhi)回(hui)閥(fa)(fa)(fa)安(an)裝(zhuang)位(wei)置不受(shou)限制,通(tong)常安(an)裝(zhuang)于水(shui)平管(guan)路(lu),但也可以安(an)裝(zhuang)于垂直管(guan)路(lu)或傾(qing)斜管(guan)路(lu)上。安(an)裝(zhuang)止(zhi)回(hui)閥(fa)(fa)(fa)時(shi),應特別注意介質(zhi)流動方(fang)向(xiang),應使介質(zhi)正常流動方(fang)向(xiang)與閥(fa)(fa)(fa)體(ti)上指(zhi)示的箭頭方(fang)向(xiang)相一致(zhi),否(fou)則(ze)就會截(jie)斷介質(zhi)的正常流動。底(di)閥(fa)(fa)(fa)應安(an)裝(zhuang)在水(shui)泵吸水(shui)管(guan)路(lu)的底(di)端。

選(xuan)用標準:

1.單向閥一般適用于(yu)清凈介質,不宜用于(yu)含(han)有固體顆粒和粘度較大的介質。

2.對于DN50mm以下的低壓單向閥,宜選用蝶式單向閥、立式升降單向閥和隔膜式單向閥;對于DN200-DN1200的中低壓單向閥,宜選用無磨損球形上回閥;對于DN50-DN2000的低壓單向閥,宜選用蝶式單向閥和隔膜式單向閥。

3.隔膜(mo)式單向閥適用于易產生水擊(ji)的(de)管路上,隔膜(mo)可以很好地(di)消除介(jie)質逆流(liu)時產生的(de)水擊(ji),但(dan)受溫度和壓(ya)力限制,一般使用在低壓(ya)常溫管道(dao)上。

4.對(dui)于要(yao)求關(guan)閉(bi)(bi)時水(shui)擊沖擊比較小(xiao)或無水(shui)擊的管(guan)路(lu),宜選用緩閉(bi)(bi)旋啟式單向閥和緩閉(bi)(bi)蝶式單向閥。

DRVP6-1-10/2 DRVP8-1-10/2 DRVP10-1-10/2 DRVP12-1-10/2 DRVP16-1-10/2  

DVP6-1-10 DVP8-1-10 DVP10-1-10 DVP12-1-10 DVP16-1-10 DVP20-1-10 DVP25-1-10 DVP30-1-10 DVP40-1-10
DVP6S-10 DV8S-10 DVP10S-10 DVP12S-10 DVP16S-10 DV20S-10 DVP2S-10 DVP30S-10 DVP40S-10

DVP10S-10 DRVP12S-10 DRVP16S-10 DRV20S-10 DRVP2S-10 DVP30S-10 DRVP40S-10 DRVP6S-10/V2

 DRVP8S-10/V2 DVP10S-10/V2 DRVP12S-10/V2 DRVP16S-10/V2 DRVP20S-10/V2 DRVP25S-10/V2 

DRVP30S-10/V2 DRVP40S-10/V2  DV/DRV節流閥(fa)/單向節流閥(fa) DV6-1-10  DV8-1-10 DV10-1-10 DV12-1-10 

DV16-1-10   DV20-1-10    DV25-1-10   DV30-1-10   DV40-1-10  DV6-1-10/V2  DV8-1-10/V2   DV10-1-10/V2