品牌 | 其他品牌 | 應用領域 | 電子,電氣 |
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FESTO減壓閥價格/費斯托尺寸圖
內部(bu)(bu)(bu)先(xian)(xian)導式(shi)(shi)(shi)減(jian)(jian)壓(ya)(ya)(ya)(ya)(ya)(ya)閥(fa)當(dang)減(jian)(jian)壓(ya)(ya)(ya)(ya)(ya)(ya)閥(fa)的(de)(de)(de)輸(shu)出壓(ya)(ya)(ya)(ya)(ya)(ya)力較高(gao)(gao)或通徑較大(da)時(shi),用(yong)(yong)調(diao)(diao)壓(ya)(ya)(ya)(ya)(ya)(ya)彈簧直(zhi)接調(diao)(diao)壓(ya)(ya)(ya)(ya)(ya)(ya),則彈簧剛度(du)必然過大(da),流量(liang)變(bian)化時(shi),輸(shu)出壓(ya)(ya)(ya)(ya)(ya)(ya)力波動(dong)較大(da),閥(fa)的(de)(de)(de)結構尺寸也將增大(da)。為了(le)克服這些(xie)缺點,可采用(yong)(yong)先(xian)(xian)導式(shi)(shi)(shi)減(jian)(jian)壓(ya)(ya)(ya)(ya)(ya)(ya)閥(fa)。先(xian)(xian)導式(shi)(shi)(shi)減(jian)(jian)壓(ya)(ya)(ya)(ya)(ya)(ya)閥(fa)的(de)(de)(de)工(gong)作原理與直(zhi)動(dong)式(shi)(shi)(shi)的(de)(de)(de)基本相同。先(xian)(xian)導式(shi)(shi)(shi)減(jian)(jian)壓(ya)(ya)(ya)(ya)(ya)(ya)閥(fa)所用(yong)(yong)的(de)(de)(de)調(diao)(diao)壓(ya)(ya)(ya)(ya)(ya)(ya)氣(qi)體,是由(you)小(xiao)(xiao)型的(de)(de)(de)直(zhi)動(dong)式(shi)(shi)(shi)減(jian)(jian)壓(ya)(ya)(ya)(ya)(ya)(ya)閥(fa)供給的(de)(de)(de)。若(ruo)把小(xiao)(xiao)型直(zhi)動(dong)式(shi)(shi)(shi)減(jian)(jian)壓(ya)(ya)(ya)(ya)(ya)(ya)閥(fa)裝在(zai)閥(fa)體內部(bu)(bu)(bu),則稱(cheng)為內部(bu)(bu)(bu)先(xian)(xian)導式(shi)(shi)(shi)減(jian)(jian)壓(ya)(ya)(ya)(ya)(ya)(ya)閥(fa);若(ruo)將小(xiao)(xiao)型直(zhi)動(dong)式(shi)(shi)(shi)減(jian)(jian)壓(ya)(ya)(ya)(ya)(ya)(ya)閥(fa)裝在(zai)主閥(fa)體外部(bu)(bu)(bu),則稱(cheng)為外部(bu)(bu)(bu)先(xian)(xian)導式(shi)(shi)(shi)減(jian)(jian)壓(ya)(ya)(ya)(ya)(ya)(ya)閥(fa)。與直(zhi)動(dong)式(shi)(shi)(shi)減(jian)(jian)壓(ya)(ya)(ya)(ya)(ya)(ya)閥(fa)相比,增加了(le)由(you)噴嘴(zui)(zui)4、擋板(ban)(ban)3、固定節(jie)流孔(kong)9及氣(qi)室(shi)B所組成的(de)(de)(de)噴嘴(zui)(zui)擋板(ban)(ban)放大(da)環節(jie)。當(dang)噴嘴(zui)(zui)與擋板(ban)(ban)之間的(de)(de)(de)距離(li)發生微小(xiao)(xiao)變(bian)化時(shi),就(jiu)會使B室(shi)中的(de)(de)(de)壓(ya)(ya)(ya)(ya)(ya)(ya)力發生根明(ming)顯的(de)(de)(de)變(bian)化,從而(er)引(yin)起膜片10有(you)較大(da)的(de)(de)(de)位移(yi),去控制(zhi)閥(fa)芯6的(de)(de)(de)上下移(yi)動(dong),使進氣(qi)閥(fa)口8開大(da)或關小(xiao)(xiao)、提高(gao)(gao)了(le)對閥(fa)芯控制(zhi)的(de)(de)(de)靈敏度(du),即提高(gao)(gao)了(le)穩壓(ya)(ya)(ya)(ya)(ya)(ya)精度(du)。
在(zai)這種類(lei)型(xing)(xing)的(de)(de)減(jian)(jian)壓(ya)閥(fa)(fa)中(zhong),雙膜(mo)片(pian)代替了內(nei)導式減(jian)(jian)壓(ya)閥(fa)(fa)中(zhong)的(de)(de)活塞(sai)。這個增大的(de)(de)膜(mo)片(pian)面(mian)積能(neng)夠打(da)開更(geng)(geng)大的(de)(de)主(zhu)閥(fa)(fa),并且在(zai)相同的(de)(de)管道尺(chi)寸下(xia),其(qi)容量(liang)比(bi)內(nei)導式活塞(sai)減(jian)(jian)壓(ya)閥(fa)(fa)更(geng)(geng)大。另外,膜(mo)片(pian)對壓(ya)力(li)變化(hua)更(geng)(geng)為敏感,精(jing)確度可達+/-1%。精(jing)確性(xing)更(geng)(geng)高是由于(yu)下(xia)游(you)傳感線的(de)(de)定位(閥(fa)(fa)的(de)(de)外部(bu)),其(qi)所在(zai)位置(zhi)氣體或液體動(dong)蕩更(geng)(geng)少。該(gai)減(jian)(jian)壓(ya)閥(fa)(fa)非(fei)常靈活,可以采用不(bu)同類(lei)型(xing)(xing)的(de)(de)導閥(fa)(fa)(例如壓(ya)力(li)閥(fa)(fa)、溫度閥(fa)(fa)、空氣裝載(zai)閥(fa)(fa)、電磁閥(fa)(fa)或幾種閥(fa)(fa)同時配套適用)。
在(zai)主(zhu)閥(fa)體外部還有一個小型直動式減壓(ya)閥(fa)由它(ta)來(lai)控制主(zhu)閥(fa)。此類閥(fa)適于(yu)通徑在(zai)20mm以上,遠距離(30m以內)、高處、危險(xian)處、調壓(ya)困難的場合。
氣(qi)源處(chu)理(li)裝(zhuang)置(zhi)內單個元件的順序(xu)與安全性(xing)和(he)功能性(xing)相關。不在(zai)氣(qi)流方向(xiang)上以(yi)隨意順序(xu)來裝(zhuang)配氣(qi)處(chu)理(li)裝(zhuang)置(zhi)。需要遵循一定的限制和(he)規則。
用(yong)于氣(qi)源處理裝(zhuang)置(zhi) MSB 的配置(zhi)器是給源處理裝(zhuang)置(zhi)排序的可靠、便利的工具。確保(bao)適用(yong)的規(gui)則得(de)到遵守 。
最終,您將得到裝(zhuang)配(pei)好的(de)組(zu)合,如果(guo)您需要,當給個性化配(pei)置和訂購的(de)氣源(yuan)處(chu)理裝(zhuang)置排序時(shi),必(bi)須(xu)遵守右側的(de)規則:
FESTO減壓閥價格/費斯托尺寸圖
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