如何運(yùn)(yun)行操作(zuo)德國(guo)EWO減(jian)壓(ya)閥280.395型：
1.要(yao)避免(mian)存(cun)留臟物、雜(za)物進(jìn)入(ru)減(jian)壓(ya)閥減(jian)壓(ya)保(bao)障(zhang)系統(tǒng)(tong)。新(xin)建或者改造工程的減(jian)壓(ya)系統(tǒng)(tong)管(guan)網(wǎng)，很可(ke)能(neng)遺留沙粒、麻絲(si)、雜(za)物。投運(yùn)前，壹般(ban)都(dou)應(yīng)(ying)進(jìn)行(xing)水沖(chong)洗，滿(man)足(zu)清(qing)潔(jie)要求後，最後裝上(shang)減(jian)壓(ya)閥和(he)過(guo)濾器濾芯(xin)，這樣才(cai)能(neng)避免(mian)雜(za)物流入(ru)減(jian)壓(ya)閥，杜絕德國(guo)EWO減(jian)壓(ya)閥280.395型卡(ka)芯(xin)現(xiàn)(xian)象。在(zai)系(xi)統(tǒng)(tong)進(jìn)入(ru)工(gong)作後，保(bao)障(zhang)減(jian)壓(ya)系統(tǒng)(tong)的水流暢(chang)通與否，與設(shè)(she)置(zhi)在(zai)系(xi)統(tǒng)(tong)上(shang)的過(guo)濾(lv)器流(liu)通能(neng)力關(guān)(guan)系密(mi)切(qie)，如濾(lv)芯(xin)被雜(za)物嚴(yán)(yan)重(zhong)吸(xi)附(fu)，則會(huì)影(ying)響減(jian)壓(ya)閥的工(gong)作(zuo)，為(wei)此(ci)必(bi)需對(dui)過(guo)濾(lv)器(qi)進(jìn)行(xing)定期(qi)檢查，及(ji)時(shí)清(qing)除(chu)汙(wu)穢(hui)。實(shí)踐(jian)表明這項(xiàng)(xiang)工作(zuo)2至(zhi)3個(gè)(ge)月必(bi)須(xu)進(jìn)行(xing)壹次，有(you)些可(ke)調(diào)(tiao)式(shi)(彈簧(huang)式(shi)、薄(bo)膜(mo)式(shi))減(jian)壓(ya)閥，其主(zhu)閥或者導(dǎo)閥自(zi)身(shen)設(shè)(she)置(zhi)過濾器，同(tong)樣需要定期(qi)拆(chai)洗濾芯(xin)。
2.1用(yong)1備(bei)的德國(guo)EWO減(jian)壓(ya)閥280.395型組(zu)應(yīng)(ying)定期(qi)輪換(huan)工作。大部分高(gao)層建築(zhu)生活(huo)給(gei)水減(jian)壓(ya)閥減(jian)壓(ya)保(bao)障(zhang)系統(tǒng)(tong)，是(shi)以(yi)給(gei)水豎向(xiang)分區(qū)設(shè)(she)置(zhi)的，壹般(ban)設(shè)(she)在(zai)每(mei)壹給(gei)水分區(qū)總管(guan)上?？紤]到眾(zhong)多用(yong)戶(hu)的用(yong)水可靠(kao)安全性(xing)(住宅每(mei)壹分區(qū)有(you)幾十(shi)戶至(zhi)上百(bai)戶，公共建築(zhu)如賓(bin)館(guan)、飯店，每壹分區(qū)有(you)幾十(shi)套(tao)客(ke)房……)，設(shè)(she)計(jì)(ji)時(shí)減(jian)壓(ya)閥應(yīng)(ying)兩(liang)套(tao)並(bing)列(lie)安裝(1用(yong)1備(bei))。減(jian)壓(ya)通路兩側(cè)(ce)都(dou)輔(fu)以(yi)閘(zha)閥或蝶閥，可啟(qi)閉(bi)任壹減(jian)壓(ya)通道(dao)，為(wei)使並(bing)列(lie)的兩(liang)套(tao)減(jian)壓(ya)閥通道(dao)能(neng)正常工作，常(chang)規(guī)壹個(gè)(ge)月(yue)輪流交(jiao)換壹次，擱置(zhi)時(shí)間過長(chang)減(jian)壓(ya)通道(dao)死(si)水結(jié)(jie)垢(gou)，減(jian)壓(ya)元件(jian)閥芯(xin)會(huì)卡(ka)住(zhu)失(shi)效(xiao)。
3.應(yīng)(ying)及(ji)時(shí)排除(chu)管(guan)道(dao)中的積(ji)氣(qi)。當(dāng)(dang)空(kong)氣(qi)進(jìn)入(ru)減(jian)壓(ya)管(guan)網(wǎng)或管(guan)網(wǎng)內(nèi)(nei)隨(sui)壓(ya)力變(bian)化(hua)時(shí)氣(qi)體從(cong)水中析(xi)出(chu)，這時(shí)區(qū)域(yu)內(nèi)(nei)用(yong)戶(hu)的水壓(ya)極不(bu)穩(wěn)(wen)定；處在(zai)供(gong)水最不(bu)利(li)點(diǎn)(dian)用(yong)水器更是(shi)壓(ya)力變(bian)化(hua)急(ji)驟(zhou)，有(you)時(shí)呈(cheng)現(xiàn)(xian)虛(xu)假(jia)的峰(feng)值(zhi)壓(ya)力，有(you)時(shí)還會(huì)抽吸(xi)斷水，還有(you)管(guan)網(wǎng)會(huì)伴隨撞(zhuang)擊聲。產(chǎn)(chan)生這種(zhong)現(xiàn)(xian)象，會(huì)影(ying)響燃(ran)氣(qi)熱(re)水器、電(dian)熱水器等(deng)穩(wěn)(wen)定工作，嚴(yán)(yan)重(zhong)時(shí)會(huì)被毀(hui)壞；對(dui)各(ge)種(zhong)盥(guan)洗器具的進(jìn)水連接(jie)管(guan)破(po)壞力(li)也很(hen)大(da)，因(yin)此(ci)爆(bao)管(guan)的事(shi)件(jian)屢有(you)發(fā)生；有(you)些水表無法(fa)正(zheng)確計(jì)(ji)量(liang)，出(chu)現(xiàn)(xian)用(yong)戶(hu)不(bu)用(yong)水，水表也會(huì)不(bu)斷地(di)轉(zhuǎn)動(dòng)(dong)。為(wei)杜絕這類(lei)事(shi)故(gu)，應(yīng)(ying)檢(jian)查屋頂(ding)水箱(xiang)生(sheng)活給(gei)水總管(guan)的蓄(xu)水高(gao)程是(shi)否滿(man)足(zu)，如不(bu)滿(man)足(zu)水箱(xiang)出(chu)水口處會(huì)產(chǎn)(chan)生水旋，吸(xi)入(ru)空(kong)氣(qi)。排(pai)除(chu)這壹故(gu)障可(ke)調(diào)整(zheng)水箱(xiang)內(nèi)(nei)液位控制器的低(di)水位高(gao)程，經(jīng)(jing)驗(yàn)(yan)表明壹般(ban)低(di)水位距出(chu)水口應(yīng)(ying)不(bu)小於0.3m。也可(ke)反復(fù)開啟設(shè)(she)置(zhi)在(zai)分區(qū)、減(jian)壓(ya)系統(tǒng)(tong)兩(liang)側(cè)(ce)的壓(ya)力表放氣(qi)旋塞，把(ba)已(yi)進(jìn)入(ru)管(guan)網(wǎng)內(nèi)(nei)的空(kong)氣(qi)徐(xu)徐(xu)排(pai)出(chu)。如采(cai)取(qu)上(shang)述(shu)措施後，在(zai)分區(qū)總管(guan)末(mo)梢(shao)以(yi)下(xia)的壹些(xie)用(yong)水器還(hai)出(chu)現(xiàn)(xian)上述(shu)現(xiàn)(xian)象，可(ke)以(yi)在(zai)這些(xie)部(bu)位增設(shè)(she)自(zi)動(dòng)(dong)排(pai)氣(qi)裝(zhuang)置。
4.註意(yi)德國(guo)EWO減(jian)壓(ya)閥280.395型的減(jian)壓(ya)保(bao)障(zhang)系統(tǒng)(tong)。無(wu)論(lun)選用(yong)比(bi)例式(shi)還(hai)是(shi)可調(diào)(tiao)式減(jian)壓(ya)閥，其減(jian)壓(ya)比(bi)P1∶P2不(bu)宜選擇(ze)過大(da)，壹般(ban)應(yīng)(ying)控制在(zai)5∶1之(zhi)內(nèi)(nei)。超過這個(gè)(ge)範(fàn)(fan)圍(wei)易(yi)產(chǎn)(chan)生氣(qi)蝕(shi)現(xiàn)(xian)象，損(sun)壞閥件(jian)，產(chǎn)(chan)生嘯(xiao)叫噪(zao)音。有(you)些活(huo)塞式(shi)減(jian)壓(ya)閥，制造(zao)廠(chang)在(zai)其(qi)閥體上加(jia)工(gong)壹個(gè)(ge)直(zhi)徑1.5mm左右(you)的小孔，其功能(neng)是(shi)讓閥芯(xin)運(yùn)動(dòng)(dong)時(shí)起到(dao)透(tou)吸氣(qi)作(zuo)用(yong)，維(wei)護(hù)管(guan)理時(shí)應(yīng)(ying)註意(yi)千(qian)萬(wan)不要將(jiang)小孔塞住(zhu)，否則(ze)影(ying)響(xiang)減(jian)壓(ya)閥的正(zheng)常(chang)運(yùn)行(xing)。
5.加強(qiáng)德國(guo)EWO減(jian)壓(ya)閥280.395型保(bao)障(zhang)系統(tǒng)(tong)的管(guan)理巡(xun)視，要註意(yi)觀察(cha)減(jian)壓(ya)閥本身(shen)的工(gong)作(zuo)動(dòng)(dong)態(tài)。閥前、閥後壓(ya)力數(shù)(shu)值(zhi)接(jie)近(jin)，表明減(jian)壓(ya)閥本身(shen)已(yi)存(cun)在(zai)故(gu)障。即(ji)活塞式(shi)減(jian)壓(ya)閥的閥芯(xin)與閥體間的平(ping)面(mian)密(mi)封橡膠(jiao)件(jian)損壞(huai)；薄(bo)膜(mo)式(shi)可(ke)調(diào)型減(jian)壓(ya)閥主(zhu)閥膜片(pian)有(you)裂痕(hen)和(he)O型(xing)圈損壞，及(ji)導(dǎo)閥連通管(guan)堵(du)塞，造(zao)成(cheng)減(jian)壓(ya)閥減(jian)壓(ya)作用(yong)削(xue)弱或者失(shi)效(xiao)。這對(dui)分區(qū)管(guan)網(wǎng)危害(hai)極(ji)大，特別是(shi)許(xu)多(duo)用(yong)水設(shè)(she)備(bei)可能(neng)因(yin)超壓(ya)力而(er)出(chu)現(xiàn)(xian)爆(bao)管(guan)，必(bi)須(xu)及(ji)時(shí)修復(fù)。比(bi)例式(shi)(活(huo)塞型(xing))減(jian)壓(ya)閥閥體上的透(tou)吸(xi)氣(qi)小孔如出(chu)現(xiàn)(xian)滴(di)漏不(bu)止，表明閥芯(xin)上幾檔(dang)O型密(mi)封圈已(yi)經(jīng)(jing)磨(mo)損(sun)，要(yao)更換(huan)密(mi)封件(jian)。但在(zai)修(xiu)理(li)拆(chai)裝(zhuang)減(jian)壓(ya)元件(jian)時(shí)，要謹(jǐn)(jin)慎(shen)細(xì)心(xin)，調(diào)(tiao)換(huan)內(nèi)(nei)密(mi)封件(jian)；清(qing)理(li)雜(za)物時(shí)，應(yīng)(ying)因(yin)勢利(li)導(dǎo)，不(bu)要用(yong)金(jin)屬棒(bang)、硬(ying)梗(geng)撬閥的活(huo)動(dòng)(dong)部(bu)位，使用(yong)木(mu)榔(lang)頭和(he)木(mu)柄敲(qiao)擊(ji)震動(dòng)(dong)，慢(man)慢(man)拆(chai)卸閥內(nèi)(nei)部(bu)件(jian)。修理(li)完(wan)畢後重(zhong)新(xin)安裝時(shí)，壹定要和(he)閥門上(shang)的流(liu)向(xiang)指示保(bao)持(chi)壹致(zhi)。
6.註意(yi)檢(jian)查德國(guo)EWO減(jian)壓(ya)閥280.395型的安裝位置(zhi)。高(gao)層內(nèi)(nei)減(jian)壓(ya)閥設(shè)(she)計(jì)(ji)安裝的位置(zhi)不妥，會(huì)出(chu)現(xiàn)(xian)減(jian)壓(ya)閥閥後壓(ya)力忽高(gao)忽低，管(guan)網(wǎng)壓(ya)力嚴(yán)(yan)重(zhong)偏(pian)離允許(xu)範(fàn)(fan)圍(wei)，伴隨毀(hui)壞淋(lin)浴器(qi)，水管(guan)爆(bao)裂(lie)和(he)損(sun)壞用(yong)戶(hu)水表等(deng)事(shi)故(gu)發(fā)生；有(you)時(shí)也會(huì)水流不(bu)暢(chang)，分區(qū)內(nèi)(nei)出(chu)現(xiàn)(xian)無規(guī)律的斷(duan)水現(xiàn)(xian)象，影(ying)響用(yong)戶(hu)用(yong)水。出(chu)現(xiàn)(xian)類(lei)似事(shi)故(gu)，檢查整(zheng)個(gè)減(jian)壓(ya)閥減(jian)壓(ya)分區(qū)給(gei)水系統(tǒng)(tong)，無(wu)疑點(diǎn)(dian)可找；拆(chai)卸減(jian)壓(ya)閥過濾(lv)器(qi)等(deng)元件(jian)並(bing)無(wu)異常(chang)；有(you)些物(wu)業(yè)管(guan)理單位甚(shen)至懷(huai)疑減(jian)壓(ya)閥的技術(shù)性(xing)能(neng)，多次調(diào)換新(xin)的減(jian)壓(ya)閥，也不(bu)能(neng)解決問題。這時(shí)可從(cong)檢(jian)查比(bi)例減(jian)壓(ya)閥設(shè)(she)計(jì)(ji)安裝位置(zhi)是(shi)否合理(li)著手，認(rèn)(ren)真(zhen)檢(jian)查管(guan)網(wǎng)系統(tǒng)(tong)是(shi)否存(cun)在(zai)等(deng)位倒(dao)虹管(guan)現(xiàn)(xian)象，即(ji)分區(qū)的輸出(chu)管(guan)路標(biāo)高(gao)相近。此(ci)類(lei)情況(kuang)在(zai)主(zhu)、副樓(lou)同(tong)壹屋(wu)頂(ding)水箱(xiang)，下(xia)給(gei)水供水系統(tǒng)(tong)中(zhong)很(hen)容(rong)易(yi)出(chu)現(xiàn)(xian)。發(fā)現(xiàn)(xian)這些(xie)問(wen)題，可(ke)以(yi)考(kao)慮把(ba)比(bi)例減(jian)壓(ya)閥安裝位置(zhi)提高(gao)壹個(gè)(ge)層面(mian)(不(bu)能(neng)提得太高(gao)，必(bi)須(xu)顧(gu)全(quan)分區(qū)內(nèi)(nei)用(yong)水設(shè)(she)備(bei)的承(cheng)壓(ya)規(guī)範(fàn)(fan)要(yao)求)；也可(ke)在(zai)主(zhu)、副樓(lou)內(nèi)(nei)，分設(shè)(she)兩(liang)組(zu)獨(dú)立的比(bi)例減(jian)壓(ya)閥給(gei)水系統(tǒng)(tong)。
產(chǎn)(chan)品實(shí)(shi)物(wu)如下(xia)圖(tu)所示：
|
|
|
|
|
 |
