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美國仙童FAIRCHILD調節閥

美國仙童(tong)FAIRCHILD進口調(diao)(diao)節(jie)閥美國FAIRCHILD減壓閥是氣動(dong)調(diao)(diao)節(jie)閥的(de)(de)一個必備配件,主要(yao)作用是將氣源的(de)(de)壓力減壓并穩(wen)定到一個定值,以便(bian)于調(diao)(diao)節(jie)閥能(neng)夠獲(huo)得(de)穩(wen)定的(de)(de)氣源動(dong)力用于調(diao)(diao)節(jie)控制。按(an)結構形式(shi)(shi)(shi)可分為(wei)薄(bo)膜式(shi)(shi)(shi)、彈簧薄(bo)膜式(shi)(shi)(shi)活(huo)塞式(shi)(shi)(shi)、杠(gang)桿式(shi)(shi)(shi)和波紋(wen)管式(shi)(shi)(shi);按(an)閥座(zuo)數目可人為(wei)單(dan)座(zuo)式(shi)(shi)(shi)和雙座(zuo)式(shi)(shi)(shi);按(an)閥瓣的(de)(de)位(wei)置(zhi)不同可分為(wei)正作用式(shi)(shi)(shi)和反作用式(shi)(shi)(shi)。
是(shi)(shi)(shi)(shi)氣(qi)動(dong)(dong)調(diao)節閥(fa)(fa)(fa)(fa)(fa)的(de)(de)(de)一(yi)個(ge)必(bi)備配件,主要(yao)作(zuo)用(yong)是(shi)(shi)(shi)(shi)將氣(qi)源的(de)(de)(de)壓(ya)(ya)(ya)(ya)力(li)(li)減(jian)(jian)壓(ya)(ya)(ya)(ya)并穩(wen)(wen)(wen)(wen)定到(dao)一(yi)個(ge)定值,以便于(yu)(yu)調(diao)節閥(fa)(fa)(fa)(fa)(fa)能(neng)夠獲得穩(wen)(wen)(wen)(wen)定的(de)(de)(de)氣(qi)源動(dong)(dong)力(li)(li)用(yong)于(yu)(yu)調(diao)節控(kong)(kong)制(zhi)。按(an)結構形式(shi)可分(fen)為(wei)(wei)薄膜式(shi)、彈簧薄膜式(shi)、活(huo)(huo)(huo)塞(sai)(sai)(sai)式(shi)、杠桿式(shi)和波紋管式(shi);按(an)閥(fa)(fa)(fa)(fa)(fa)座(zuo)數目可人為(wei)(wei)單座(zuo)式(shi)和雙座(zuo)式(shi);按(an)閥(fa)(fa)(fa)(fa)(fa)瓣(ban)的(de)(de)(de)位置不(bu)同可分(fen)為(wei)(wei)正作(zuo)用(yong)式(shi)和反作(zuo)用(yong)式(shi)。FAIRCHILD減(jian)(jian)壓(ya)(ya)(ya)(ya)閥(fa)(fa)(fa)(fa)(fa)的(de)(de)(de)作(zuo)用(yong)原理是(shi)(shi)(shi)(shi)靠閥(fa)(fa)(fa)(fa)(fa)內(nei)流(liu)(liu)(liu)道對水(shui)(shui)流(liu)(liu)(liu)的(de)(de)(de)局部(bu)阻力(li)(li)降(jiang)(jiang)低水(shui)(shui)壓(ya)(ya)(ya)(ya),水(shui)(shui)壓(ya)(ya)(ya)(ya)降(jiang)(jiang)的(de)(de)(de)范(fan)圍由連(lian)接閥(fa)(fa)(fa)(fa)(fa)瓣(ban)的(de)(de)(de)薄膜或活(huo)(huo)(huo)塞(sai)(sai)(sai)兩(liang)側(ce)的(de)(de)(de)進(jin)出(chu)口水(shui)(shui)壓(ya)(ya)(ya)(ya)差自(zi)動(dong)(dong)調(diao)節。定比(bi)(bi)減(jian)(jian)壓(ya)(ya)(ya)(ya)原理是(shi)(shi)(shi)(shi)利用(yong)閥(fa)(fa)(fa)(fa)(fa)體(ti)中浮(fu)動(dong)(dong)活(huo)(huo)(huo)塞(sai)(sai)(sai)的(de)(de)(de)水(shui)(shui)壓(ya)(ya)(ya)(ya)比(bi)(bi)控(kong)(kong)制(zhi),進(jin)出(chu)口端減(jian)(jian)壓(ya)(ya)(ya)(ya)比(bi)(bi)與(yu)進(jin)出(chu)口側(ce)活(huo)(huo)(huo)塞(sai)(sai)(sai)面積(ji)比(bi)(bi)成反比(bi)(bi)。這種(zhong)減(jian)(jian)壓(ya)(ya)(ya)(ya)閥(fa)(fa)(fa)(fa)(fa)工(gong)作(zuo)平穩(wen)(wen)(wen)(wen)無振動(dong)(dong);閥(fa)(fa)(fa)(fa)(fa)體(ti)內(nei)無彈簧,故無彈簧銹蝕、金屬疲勞失(shi)效(xiao)之(zhi)慮(lv);密(mi)封性能(neng)良好不(bu)滲漏,因(yin)而(er)既減(jian)(jian)動(dong)(dong)壓(ya)(ya)(ya)(ya)(水(shui)(shui)流(liu)(liu)(liu)動(dong)(dong)時(shi)(shi))又減(jian)(jian)靜壓(ya)(ya)(ya)(ya)(流(liu)(liu)(liu)量為(wei)(wei)0時(shi)(shi));特別是(shi)(shi)(shi)(shi)在減(jian)(jian)壓(ya)(ya)(ya)(ya)的(de)(de)(de)同時(shi)(shi)不(bu)影(ying)響(xiang)水(shui)(shui)流(liu)(liu)(liu)量。FAIRCHILD減(jian)(jian)壓(ya)(ya)(ya)(ya)閥(fa)(fa)(fa)(fa)(fa)的(de)(de)(de)作(zuo)用(yong)原理是(shi)(shi)(shi)(shi)靠閥(fa)(fa)(fa)(fa)(fa)內(nei)流(liu)(liu)(liu)道對水(shui)(shui)流(liu)(liu)(liu)的(de)(de)(de)局部(bu)阻力(li)(li)降(jiang)(jiang)低水(shui)(shui)壓(ya)(ya)(ya)(ya),水(shui)(shui)壓(ya)(ya)(ya)(ya)降(jiang)(jiang)的(de)(de)(de)范(fan)圍由連(lian)接閥(fa)(fa)(fa)(fa)(fa)瓣(ban)的(de)(de)(de)薄膜或活(huo)(huo)(huo)塞(sai)(sai)(sai)兩(liang)側(ce)的(de)(de)(de)進(jin)出(chu)口水(shui)(shui)壓(ya)(ya)(ya)(ya)差自(zi)動(dong)(dong)調(diao)節。定比(bi)(bi)減(jian)(jian)壓(ya)(ya)(ya)(ya)原理是(shi)(shi)(shi)(shi)利用(yong)閥(fa)(fa)(fa)(fa)(fa)體(ti)中浮(fu)動(dong)(dong)活(huo)(huo)(huo)塞(sai)(sai)(sai)的(de)(de)(de)水(shui)(shui)壓(ya)(ya)(ya)(ya)比(bi)(bi)控(kong)(kong)制(zhi),進(jin)出(chu)口端減(jian)(jian)壓(ya)(ya)(ya)(ya)比(bi)(bi)與(yu)進(jin)出(chu)口側(ce)活(huo)(huo)(huo)塞(sai)(sai)(sai)面積(ji)比(bi)(bi)成反比(bi)(bi)。這種(zhong)減(jian)(jian)壓(ya)(ya)(ya)(ya)閥(fa)(fa)(fa)(fa)(fa)工(gong)作(zuo)平穩(wen)(wen)(wen)(wen)無振動(dong)(dong);閥(fa)(fa)(fa)(fa)(fa)體(ti)內(nei)無彈簧,故無彈簧銹蝕、金屬疲勞失(shi)效(xiao)之(zhi)慮(lv);密(mi)封性能(neng)良好不(bu)滲漏,因(yin)而(er)既減(jian)(jian)動(dong)(dong)壓(ya)(ya)(ya)(ya)(水(shui)(shui)流(liu)(liu)(liu)動(dong)(dong)時(shi)(shi))又減(jian)(jian)靜壓(ya)(ya)(ya)(ya)(流(liu)(liu)(liu)量為(wei)(wei)0時(shi)(shi));特別是(shi)(shi)(shi)(shi)在減(jian)(jian)壓(ya)(ya)(ya)(ya)的(de)(de)(de)同時(shi)(shi)不(bu)影(ying)響(xiang)水(shui)(shui)流(liu)(liu)(liu)量。


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