武穴黎翔專業(yè)代理德國(guó)力士樂(lè)全系列產(chǎn)品, 專注原裝全新力士樂(lè) ,假一罰萬(wàn),力士樂(lè)好價(jià)格!!歡迎詢價(jià)?。?/span>減壓閥的作用
減壓閥的作用原理是靠閥內(nèi)流道對(duì)水流的局部阻力降低水壓,水壓降的范圍由連接閥瓣的薄膜或活塞兩側(cè)的進(jìn)出口水壓差自動(dòng)調(diào)節(jié)。近年來(lái)又出現(xiàn)一些新型減壓閥,如定比式減壓閥。定比減壓原理是利用閥體中浮動(dòng)活塞的水壓比控制,進(jìn)出口端減壓比與進(jìn)出口側(cè)活塞面積比成反比。這種減壓閥工作平穩(wěn)無(wú)振動(dòng);閥體內(nèi)無(wú)彈簧,故無(wú)彈簧銹蝕、金屬疲勞失效之慮;密封性能良好不滲漏,因而既減動(dòng)壓(水流動(dòng)時(shí))又減靜壓(流量為0時(shí));特別是在減壓的同時(shí)不影響水流量。
水流通過(guò)減壓閥雖有很大的水頭損失,但由于減少了水的浪費(fèi)并使系統(tǒng)流量分布合理、改善了系統(tǒng)布局與工況,因此總體上講仍是節(jié)能的。減壓閥的每一檔彈簧只在一定的出口壓力范圍內(nèi)適用,超出范圍應(yīng)更換彈簧。在介質(zhì)工作溫度比較高的場(chǎng)合,一般選用先導(dǎo)活塞式減壓閥或先導(dǎo)波紋管式減壓閥。介質(zhì)為空氣或水(液體)的場(chǎng)合,一般宜選用直接作用薄膜式減壓閥或先導(dǎo)薄膜式減壓閥。介質(zhì)為蒸汽的場(chǎng)合,宜選用先導(dǎo)活塞式減壓閥或先導(dǎo)波紋管式減壓閥。為了操作、調(diào)整和維修的方便,減壓閥一般應(yīng)安裝在水平管道上。
減壓閥 運(yùn)行操作
1.要避免存留臟物、雜物進(jìn)入減壓閥減壓保障系統(tǒng)。新建或者改造工程的減壓系統(tǒng)管網(wǎng),很可能遺留沙粒、麻絲、雜物。投運(yùn)前,一般都應(yīng)進(jìn)行水沖洗,滿足清潔要求后,最后裝上減壓閥和過(guò)濾器濾芯,這樣才能避免雜物流入減壓閥,杜絕減壓閥卡芯現(xiàn)象。在系統(tǒng)進(jìn)入工作后,保障減壓系統(tǒng)的水流暢通與否,與設(shè)置在系統(tǒng)上的過(guò)濾器流通能力關(guān)系密切,如濾芯被雜物嚴(yán)重吸附,則會(huì)影響減壓閥的工作,為此必需對(duì)過(guò)濾器進(jìn)行定期檢查,及時(shí)清除污穢。實(shí)踐表明這項(xiàng)工作2至3個(gè)月必須進(jìn)行一次,有些可調(diào)式(彈簧式、薄膜式)減壓閥,其主閥或者導(dǎo)閥自身設(shè)置過(guò)濾器,同樣需要定期拆洗濾芯。
2.1用1備的減壓閥組應(yīng)定期輪換工作。大部分高層建筑生活給水減壓閥減壓保障系統(tǒng),是以給水豎向分區(qū)設(shè)置的,一般設(shè)在每一給水分區(qū)總管上??紤]到眾多用戶的用水可靠安全性(住宅每一分區(qū)有幾十戶至上百戶,公共建筑如賓館、飯店,每一分區(qū)有幾十套客房……),設(shè)計(jì)時(shí)減壓閥應(yīng)兩套并列安裝(1用1備)。減壓通路兩側(cè)都輔以閘閥或蝶閥,可啟閉任一減壓通道,為使并列的兩套減壓閥通道能正常工作,常規(guī)一個(gè)月輪流交換一次,擱置時(shí)間過(guò)長(zhǎng)減壓通道死水結(jié)垢,減壓元件閥芯會(huì)卡住失效。
經(jīng)營(yíng)產(chǎn)品:
閥類:電磁閥、換向閥、單向閥、溢流閥、減壓閥、平衡
閥、插裝閥、比例閥等
泵類:齒輪泵、柱塞泵、葉片泵等
承諾:保證原裝正品,假一賠十?量大價(jià)格好商量?。?/p>
武穴黎翔機(jī)電設(shè)備有限公司REXROTH力士樂(lè)銷售部
詢價(jià)聯(lián)系人:陳工
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廣泛應(yīng)用于鋼鐵、冶金、鋁行業(yè)、石油化工、航天、船舶制造、煤炭、水泥、電力、汽車、工程機(jī)械、食品、藥業(yè)、林業(yè)、紡織、皮革、造紙等行業(yè)領(lǐng)域3.應(yīng)及時(shí)排除管道中的積氣。當(dāng)空氣進(jìn)入減壓管網(wǎng)或管網(wǎng)內(nèi)隨壓力變化時(shí)氣體從水中析出,這時(shí)區(qū)域內(nèi)用戶的水壓極不穩(wěn)定;處在供水最不利點(diǎn)用水器更是壓力變化急驟,有時(shí)呈現(xiàn)虛假的峰值壓力,有時(shí)還會(huì)抽吸斷水,還有管網(wǎng)會(huì)伴隨撞擊聲。產(chǎn)生這種現(xiàn)象,會(huì)影響燃?xì)鉄崴鳌㈦姛崴鞯确€(wěn)定工作,嚴(yán)重時(shí)會(huì)被毀壞;對(duì)各種盥洗器具的進(jìn)水連接管破壞力也很大,特別是目前常用的一些復(fù)合型連結(jié)軟管,其強(qiáng)度較差,因此爆管的事件屢有發(fā)生;有些水表無(wú)法正確計(jì)量,出現(xiàn)用戶不用水,水表也會(huì)不斷地轉(zhuǎn)動(dòng)。為杜絕這類事故,應(yīng)檢查屋頂水箱生活給水總管的蓄水高程是否滿足,如不滿足水箱出水口處會(huì)產(chǎn)生水旋,吸入空氣。排除這一故障可調(diào)整水箱內(nèi)液位控制器的最低水位高程,經(jīng)驗(yàn)表明一般最低水位距出水口應(yīng)不小于0.3m。也可反復(fù)開(kāi)啟設(shè)置在分區(qū)、減壓系統(tǒng)兩側(cè)的壓力表放氣旋塞,把已進(jìn)入管網(wǎng)內(nèi)的空氣徐徐排出。如采取上述措施后,在分區(qū)總管末梢以下的一些用水器還出現(xiàn)上述現(xiàn)象,可以在這些部位增設(shè)自動(dòng)排氣裝置。
4.注意減壓閥的減壓保障系統(tǒng)。無(wú)論選用比例式還是可調(diào)式減壓閥,其減壓比P1∶P2不宜選擇過(guò)大,一般應(yīng)控制在5∶1之內(nèi)。超過(guò)這個(gè)范圍易產(chǎn)生氣蝕現(xiàn)象,損壞閥件,產(chǎn)生嘯叫噪音。有些活塞式減壓閥,制造廠在其閥體上加工一個(gè)直徑1.5mm左右的小孔,其功能是讓閥芯運(yùn)動(dòng)時(shí)起到透吸氣作用,維護(hù)管理時(shí)應(yīng)注意千萬(wàn)不要將小孔塞住,否則影響減壓閥的正常運(yùn)行。
5.加強(qiáng)減壓閥保障系統(tǒng)的管理巡視,要注意觀察減壓閥本身的工作動(dòng)態(tài)。閥前、閥后壓力數(shù)值接近,表明減壓閥本身已存在故障。即活塞式減壓閥的閥芯與閥體間的平面密封橡膠件損壞;薄膜式可調(diào)型減壓閥主閥膜片有裂痕和O型圈損壞,及導(dǎo)閥連通管堵塞,造成減壓閥減壓作用削弱或者失效。這對(duì)分區(qū)管網(wǎng)危害極大,特別是許多用水設(shè)備可能因超壓力而出現(xiàn)爆管,必須及時(shí)修復(fù)。比例式(活塞型)減壓閥閥體上的透吸氣小孔如出現(xiàn)滴漏不止,表明閥芯上幾檔O型密封圈已經(jīng)磨損,要更換密封件。但在修理拆裝減壓元件時(shí),要謹(jǐn)慎細(xì)心,調(diào)換內(nèi)密封件;清理雜物時(shí),應(yīng)因勢(shì)利導(dǎo),不要用金屬棒、硬梗撬閥的活動(dòng)部位,使用木榔頭和木柄敲擊震動(dòng),慢慢拆卸閥內(nèi)部件。修理完畢后重新安裝時(shí),一定要和閥門上的流向指示保持一致。
6.注意檢查比例式減壓閥的安裝位置。高層內(nèi)減壓閥設(shè)計(jì)安裝的位置不妥,會(huì)出現(xiàn)減壓閥閥后壓力忽高忽低,管網(wǎng)壓力嚴(yán)重偏離允許范圍,伴隨毀壞淋浴器,水管爆裂和損壞用戶水表等事故發(fā)生;有時(shí)也會(huì)水流不暢,分區(qū)內(nèi)出現(xiàn)無(wú)規(guī)律的斷水現(xiàn)象,影響用戶用水。出現(xiàn)類似事故,檢查整個(gè)減壓閥減壓分區(qū)給水系統(tǒng),無(wú)疑點(diǎn)可找;拆卸減壓閥過(guò)濾器等元件并無(wú)異常;有些物業(yè)管理單位甚至懷疑減壓閥的技術(shù)性能,多次調(diào)換新的減壓閥,也不能解決問(wèn)題。這時(shí)可從檢查比例減壓閥設(shè)計(jì)安裝位置是否合理著手,認(rèn)真檢查管網(wǎng)系統(tǒng)是否存在等位倒虹管現(xiàn)象,即分區(qū)的輸出管路標(biāo)高相近。此類情況在主、副樓同一屋頂水箱,下給水供水系統(tǒng)中很容易出現(xiàn)。發(fā)現(xiàn)這些問(wèn)題,可以考慮把比例減壓閥安裝位置提高一個(gè)層面(不能提得太高,必須顧全分區(qū)內(nèi)用水設(shè)備的承壓規(guī)范要求);也可在主、副樓內(nèi),分設(shè)兩組獨(dú)立的比例減壓閥給水系統(tǒng)。DR減壓閥
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R900596815 DR20-4-5X/100YM
R900596823 DR10-4-5X/200YM
R900596862 DR20G5-5X/100YM
R900596883 DR10-5-5X/315Y
R900596928 DR30-5-5X/315Y
R900596961 DR30-4-5X/315Y
R900597048 DR20-5-5X/315Y
R900597086 DR30-5-5X/100YMV
R900597117 DR10G5-5X/200YM
R900597132 DR10-5-5X/315YM
R900597158 DR30-5-5X/200YM
R900597197 DR10-5-5X/100YM
R900597198 DR20-5-5X/100Y
R900597206 DR10G5-5X/100YM
R900597233 DR20-5-5X/200YM
R900597260 DR30-5-5X/100YM
R900597283 DR20-5-5X/100YM
R900597284 DR20-5-5X/100YV
R900597286 DR20-6-5X/315Y
R900597312 DR30-5-5X/315YV
R900597478 DR20-4-5X/315YM
R900597589 DR20G5-5X/315YM
R900597613 DR30-6-5X/315YM
R900597688 DR20G5-5X/200YM
R900597713 DR10-4-5X/100Y
R900597714 DR20-6-5X/100YM
R900597846 DR6DP2-5X/315YMV
R900597892 DR20-5-5X/200Y
R900598358 DR10-5-5X/200YM
R900598359 DR10-5-5X/50YM
R900598360 DR20-5-5X/50Y
R900598578 DR30-5-5X/315YMV
R900599113 DR30-4-5X/100Y
R900599845 DR25G5-5X/315YM
R900700003 DR20G4-5X/200YMV
R900703496 DR20K7-1X/200YMV
R900753678 DR10DP3-4X/75YMV
R900772067 DR10DP3-4X/210YV
R900901458 DR20-5-4X/50YV
R900951565 DR30-4-5X/315YMV
R900962883 DR10-4-5X/100YM
R900977041 DR30-6-5X/315YV
R900979029 DR6DP1-5X/210YMV
R901080202 DR10-4-5X/315XYM
R901080203 DR10-4-5X/160XYM
R901080233 DR20-4-5X/315XYM
R901080234 DR20-4-5X/160XYM
R901080236 DR20-4-5X/160XY
R901080391 DR10-7-5X/80XY
R901115370 DR20-5-5X/315XYM
R901156416 DR10-7-5X/315XYM
HED5OP1-2X/50K14
HED5OP1-2X/50K14V
HED5OP1-2X/100K14
HED5OP1-2X/100K14V
HED5OP1-2X/210K14
HED5OP1-2X/210K14V
HED5OP1-2X/350K14
HED5OP1-2X/350K14V
HED5OP1-2X/630K14
HED5OP1-2X/630K14V
HED5OA1-2X/50K14
HED5OA1-2X/50K14V
HED5OA1-2X/100K14
HED5OA1-2X/100K14V
HED5OA1-2X/210K14
HED5OA1-2X/210K14V
HED5OA1-2X/350K14
HED5OA1-2X/350K14V
HED5OA1-2X/630K14
HED5OA1-2X/630K14V
HED5OK1-2X/50K14
HED5OK1-2X/100K14
HED5OK1-2X/210K14
HED5OK1-2X/210K14V
HED5OK1-2X/350K14
HED5OK1-2X/350K14V
HED5OK1-2X/630K14
HED8OH1X/50K14
HED8OH1X/50K14V
HED8OH1X/50K14S
HED8OH1X/50K14SV
HED8OH1X/50K14A
HED8OH1X/50K14AS
HED8OH1X/50K14ASV
HED8OH1X/50K14KS
HED8OH1X/50K14KSV
HED8OH1X/50K14KW
HED8OH1X/50K14KWV
HED8OH1X/100K14
HED8OH1X/100K14V
HED8OH1X/100K14S
HED8OH1X/100K14SV
HED8OH1X/100K14A
HED8OH1X/100K14AV
HED8OH1X/100K14AS
HED8OH1X/100K14ASV
HED8OH1X/100K14KS
HED8OH1X/100K14KSV
HED8OH1X/100K14KW
HED8OH1X/100K14KWV
HED8OH1X/200K14
HED8OH1X/200K14V
HED8OH1X/200K14S
HED8OH1X/200K14SV
HED8OH1X/200K14A
HED8OH1X/200K14AV
HED8OH1X/200K14AS
HED8OH1X/200K14ASV
HED8OH1X/200K14KS
HED8OH1X/200K14KSV
HED8OH1X/200K14KW
HED8OH1X/200K14KWV
HED8OH1X/350K14
HED8OH1X/350K14V
HED8OH1X/350K14S
HED8OH1X/350K14SV
HED8OH1X/350K14A
HED8OH1X/350K14AV
HED8OH1X/350K14AS
HED8OH1X/350K14ASV
HED8OH1X/350K14KS
HED8OH1X/350K14KSV
HED8OH1X/350K14KW
HED8OH1X/350K14KWV
HED8OH1X/630K14
HED8OH1X/630K14V
HED8OH1X/630K14S
HED8OH1X/630K14SV
HED8OH1X/630K14AS
HED8OH1X/630K14KS
HED8OH1X/630K14KW
HED8OP1X/50K14
HED8OP1X/50K14V
HED8OP1X/50K14S
HED8OP1X/50K14SV
HED8OP1X/50K14A
HED8OP1X/50K14AV
HED8OP1X/50K14AS
HED8OP1X/50K14ASV
HED8OP1X/50K14KS
HED8OP1X/50K14KSV
HED8OP1X/50K14KW
HED8OP1X/50K14KWV
HED8OP1X/100K14
HED8OP1X/100K14V
HED8OP1X/100K14S
HED8OP1X/100K14SV
HED8OP1X/100K14A
HED8OP1X/100K14AV
HED8OP1X/100K14AS
HED8OP1X/100K14ASV
HED8OP1X/100K14KS
HED8OP1X/100K14KSV
HED8OP1X/100K14KW
HED8OP1X/100K14KWV
HED8OP1X/200K14
HED8OP1X/200K14V
HED8OP1X/200K14S
HED8OP1X/200K14SV
HED8OP1X/200K14A
HED8OP1X/200K14AV
HED8OP1X/200K14AS
HED8OP1X/200K14ASV
HED8OP1X/200K14KS
HED8OP1X/200K14KW
HED8OP1X/200K14KWV
HED8OP1X/350K14
HED8OP1X/350K14V
HED8OP1X/350K14S
HED8OP1X/350K14SV
HED8OP1X/350K14A
HED8OP1X/350K14AS
HED8OP1X/350K14ASV
HED8OP1X/350K14KS
HED8OP1X/350K14KW
HED8OP1X/350K14KWV
HED8OP1X/630K14
HED8OP1X/630K14V
HED8OP1X/630K14S
HED8OP1X/630K14A
HED8OP1X/630K14AS
HED8OP1X/630K14ASV
HED8OP1X/630K14KS
HED8OP1X/630K14KW
HED8OP1X/630K14KWV
HED8OA1X/50K14
HED8OA1X/50K14V
HED8OA1X/50K14S
HED8OA1X/50K14SV
HED8OA1X/50K14A
HED8OA1X/50K14AV
HED8OA1X/50K14AS
HED8OA1X/50K14ASV
HED8OA1X/50K14KS
HED8OA1X/50K14KSV
HED8OA1X/50K14KW
HED8OA1X/50K14KWV
HED8OA1X/100K14
HED8OA1X/100K14V
HED8OA1X/100K14S
HED8OA1X/100K14SV
HED8OA1X/100K14A
HED8OA1X/100K14AV
HED8OA1X/100K14AS
HED8OA1X/100K14ASV
HED8OA1X/100K14KS
HED8OA1X/100K14KSV
HED8OA1X/100K14KW
HED8OA1X/100K14KWV
HED8OA1X/200K14V
HED8OA1X/200K14S
HED8OA1X/200K14SV
HED8OA1X/200K14A
HED8OA1X/200K14AV
HED8OA1X/200K14AS
HED8OA1X/200K14ASV
HED8OA1X/200K14KS
HED8OA1X/200K14KSV
HED8OA1X/200K14KW
HED8OA1X/200K14KWV
HED8OA1X/350K14
HED8OA1X/350K14V
HED8OA1X/350K14S
HED8OA1X/350K14SV
HED8OA1X/350K14A
HED8OA1X/350K14AV
HED8OA1X/350K14AS
HED8OA1X/350K14ASV
HED8OA1X/350K14KS
HED8OA1X/350K14KSV
HED8OA1X/350K14KW
HED8OA1X/350K14KWV
HED8OA1X/630K14
HED8OA1X/630K14V
HED8OA1X/630K14S
HED8OA1X/630K14SV
HED8OA1X/630K14AV
HED8OA1X/630K14AS
HED8OA1X/630K14KS
HED8OA1X/630K14KSV
HED8OA1X/630K14KW
AGRCZO-A-10/100/P ?DLHZA-T-040-L71/M/7?
DLHZO-TE-040-T73/I 40
RZGA-A-010/32 AGMZA-A-10/250/PA-M?
DLHZO-TE-040-V11 40
RZGA-A-033/80?
AGMZA-A-10/80/PA-GK?
DHZA-A-051-S5/M/7 RZMO-A-010/100 ?
AGRCZO-A-10/210/P DLHZA-T-060-T71/GK 31?
DLHZO-TE-040-V13DLHZO-TE-040-L31/FI 40?
DLHZO-TE-040-L31/I?
DLHZO-TE-040-L33/I 40?
E-MI-AC-01F 11 /4,
E-MI-AC-01F 11 /6,?
E-ATR-5/160/I 10 E-ATR-5/250?
E-ATR-5/250/I?
E-ATR-5/400 10?
DLHZO-TE-040-T73/I 40?
DLHZO-TE-040-V11 40?
DLHZO-TE-040-V13?
DLHZO-TE-040-V73 40?
E-MI-AC-01F 11 /4,
E-MI-AC-01F 11 /6,?
E-ME-AC-01F11 /3,?
E-MI-AC-01F 11 /4,?
E-MI-AC-01F/RR 11 /1,?
E-ME-AC-01F 11 /2, ,?
DLKZA-T-160-L71/NPT?
DLKZA-T-160-T71/GK 40?
DLKZOR-LE-160-L71/Q/LQ82SB 41 ?
DLKZOR-T-140-L31 41?
DLKZOR-T-140-L71 41
DLKZOR-T-140-L73 41 ?
DLKZOR-T-140-T71 41?
DLKZOR-T-140-V71 41?
DLKZOR-T-160-L71 41?
DLKZOR-TE-140-L31?
DLKZOR-TE-140-L71?
DLKZOR-TE-140-L71/FI 41?
DLKZOR-TE-140-L71/I ?
DLKZOR-TE-140-L71/Q 41 ?
DLKZOR-TE-140-L73/I 41 ?
DLKZOR-TE-140-T71 41?
DLKZOR-TE-140-T73 41 ?
DLKZOR-TE-140-T73/I 41?
比例換向閥 DLHZO-T-040-L71
比例換向閥 DLHZO-T-040-L73
比例換向閥 DLHZO-T-040-L73
比例換向閥 DLHZO-T-060-L51/B
比例換向閥 DLHZO-T-040-L71/PE
比例換向閥 DLHZO-TE-040-L71/40
比例換向閥 DLHZO-TE-040-L71/I/PE
比例換向閥 DLHZO-TE-040-L71/I/PE
比例換向閥 DLHZO-TE-040-L73/B
比例換向閥 DLHZO-TE-040-L73
比例換向閥 DLHZO-TE-040-L73/40
比例換向閥 DLHZO-TE-040-L73/Q
比例換向閥 DLHZO-TE-040-L73/I
比例換向閥 DLHZO-LE-040-L03
比例換向閥 DLKZO-T-140-L71
伺服比例閥DLHZO-TE-040-V31
比例換向閥DLHZO-T-040-V73?
比例換向閥DLHZO-TE-040-V31
比例換向閥DLHZO-TE-040-L51
比例換向閥DLHZO-TE-040-L11
比例換向閥DLHZO-T-040-L51 31
比例換向閥DLHZO-T-040-L71 31
DPZO-A-171-L5 10 ?
DPZO-A-171-L5/D?
DPZO-A-171-L5/E DLHZA-T-040-L71/M/7?
DLHZA-T-040-T71/GK 31?
DLHZA-T-060-T71/GK 31?
DLHZO-LE-060-V71/LQ52SA 40?
DLHZO-LE-060-V71/Q/LQ42SB 40 ?
DLHZO-LE-060-V71/Q/LQ52SA 40?
DLHZO-T-040-L11?
DLHZO-T-040-L13?
DLHZO-T-040-L31 ?
DLHZO-T-040-L51 ?
DLHZO-T-040-L53?
DLHZO-T-040-L71?
DLHZO-T-040-L73 31?
DLHZO-T-040-V71?
DLHZO-TE-040-L11?
DLHZO-TE-040-L11/I?
DLHZO-TE-040-L31 40?
伺服比例閥DLHZO-TE-040-V31
E-MI-AC-01F 11 /4,?
E-MI-AC-01F/RR 11 /1,?
E-ME-AC-01F 11 /2, ,?
DLHZO-TE-040-L51 40 ?
DLHZO-TE-040-L51/FI 40?
DLHZO-TE-040-L51/I ?
DLHZO-TE-040-L53 40?
DLHZO-TE-040-L71?
DLHZO-TE-040-L71/I 40?
DLHZO-TE-040-L73 40?
DLHZO-TE-040-L73/B 40 ?
DLHZO-TE-040-T53/I 40?
DLHZO-TE-040-T71/Q 40?
DPZO-A-171-S5 10 ?
DPZO-A-251-L5 30 ?
DPZO-A-251-S5 20 ?
DPZO-A-253-S5?
DPZO-A-271-D5?
DPZO-A-271-L5?
DPZO-A-271-L5/D 30 ?
DPZO-A-271-L5/E 30?
DPZO-A-271-L5/G 30?
DPZO-A-271-S5?
DPZO-A-271-S5/D ?
DPZO-A-271-S5/DE 30 ?
DPZO-A-271-S5/DG 30?
DPZO-A-271-S5/E 30 ?
DPZO-A-271-S5/G?
DPZO-A-273-D5 ?
DPZO-A-273-D5/G?
DPZO-A-273-L5 30 ?
DPZO-A-273-L5/D 30?
DPZO-A-273-L5/D 30 /WG