安沃馳品牌過(guò)濾器-調(diào)壓閥- R412007209 *

安沃馳品牌過(guò)濾器-調(diào)壓閥- R412007209 *

過(guò)濾器-調(diào)壓閥, 系列 AS3-FRE - R412007209

• G 1/2
• 過(guò)濾器氣孔直徑 5 µm
• 鎖定式
• 用于掛鎖
• 帶有壓力表
• 適合ATEX

 壓力調(diào)節(jié)閥亦稱(chēng)自力式平衡閥、流量控制閥、流量控制器、動(dòng)態(tài)平衡閥、流量平衡閥，是一種直觀簡(jiǎn)便的流量調(diào)節(jié)控制裝置，管網(wǎng)中應(yīng)用流量調(diào)節(jié)閥可直接根據(jù)設(shè)計(jì)來(lái)設(shè)定流量，閥門(mén)可在水作用下，自動(dòng)消除管線的剩余壓頭及壓力波動(dòng)所引起的流量偏差，無(wú)論系統(tǒng)壓力怎樣變化均保持設(shè)定流量不變，該閥這些功能使管網(wǎng)流量調(diào)節(jié)一次完成，把調(diào)網(wǎng)工作變?yōu)楹?jiǎn)單的流量分配，有效的解決管網(wǎng)的水力失調(diào)。流量調(diào)節(jié)閥主要應(yīng)用于：集中供熱（冷）等水系統(tǒng)中，使管網(wǎng)流量按需分配，消除水系統(tǒng)水力失調(diào)，解決冷熱不均問(wèn)題。

供應(yīng)德國(guó)AVENTICS安沃馳氣動(dòng)元件主要產(chǎn)品：氣缸,活塞桿氣缸,無(wú)桿氣缸,旋轉(zhuǎn)驅(qū)動(dòng)裝置,氣動(dòng)閥,閥島,調(diào)壓閥,流量閥,止回閥,氣源處理,真空發(fā)生器,傳感器
aventics電磁閥安沃馳氣動(dòng)閥德國(guó)力士樂(lè)濾芯，rexroth濾芯安沃馳氣動(dòng)閥安沃馳氣缸  安全閥、調(diào)壓閥、精密調(diào)壓閥、壓力調(diào)節(jié)閥、帶管套的連接電纜、接線盒、分氣塊、安裝組件、氣動(dòng)計(jì)時(shí)器、壓力開(kāi)關(guān)、信號(hào)斷路器、雙手操作、二位五通換向閥、二位三通換向閥、二位三通 截止閥、2路3通手動(dòng)滑閥、彎角 球閥、隔壁 球閥、二位三通 截止閥、急停閥、快速通風(fēng)閥、先導(dǎo)式單向閥、單向節(jié)流閥、單向節(jié)流閥、止回閥、單向節(jié)流閥、單向節(jié)流閥、線圈、多極插頭、橋式連接件、垂直連接的壓力調(diào)節(jié)器、回路中間板、端板組件、端板組件、直角底板、螺紋接口、單個(gè)底板、分氣條、直角底板、手動(dòng)換向的按鈕、兩位五通換向閥、氣動(dòng)閥組、對(duì)中環(huán)、傳感器、無(wú)桿氣缸、工業(yè)緩沖器、滑槽氣缸力士樂(lè)傳感器，力士樂(lè)活塞桿氣缸，力士樂(lè)電磁閥，力士樂(lè)換向閥
力士樂(lè)方向閥，力士樂(lè)溢流閥，力士樂(lè)比例閥，力士樂(lè)伺服閥
力士樂(lè)流量控制閥，力士樂(lè)截止閥，力士樂(lè)柱塞泵，力士樂(lè)葉片泵
力士樂(lè)油缸，力士樂(lè)馬達(dá)，力士樂(lè)氣動(dòng)閥，力士樂(lè)氣缸，力士樂(lè)氣動(dòng)
力士樂(lè)線圈，力士樂(lè)插頭， 力士樂(lè)放大器力士樂(lè)導(dǎo)軌力士樂(lè)齒輪泵
力士樂(lè)內(nèi)齒輪泵力士樂(lè)滑塊，力士樂(lè)滑軌，力士樂(lè)線軌
安沃弛傳感器，安沃弛氣動(dòng)三聯(lián)件安沃弛氣動(dòng)兩聯(lián)件aventics氣動(dòng)閥
，aventics氣缸，aventics傳感器，BOSCH氣動(dòng)元件,BOSCH氣缸
BOSCH電磁閥，BOSCH換向閥，BOSCH氣動(dòng)閥，BOSCH手動(dòng)閥
BOSCH線圈，REXROTH傳感器 日本油研電磁閥yuken比例閥油研換向閥yuken柱塞泵
阿托斯電磁閥atos電磁閥阿托斯葉片泵阿托斯油泵atos放大器 阿托斯葉片閥
德國(guó)力士樂(lè)柱塞泵力士樂(lè)油泵rexroth油泵力士樂(lè)齒輪泵力士樂(lè)減壓閥
美國(guó)派克油泵parker齒輪泵parker插裝閥，美國(guó)派克插裝閥，parker過(guò)濾器
，派克濾芯美國(guó)派克，parker馬達(dá)，派克馬達(dá)，
    ，parker放大器美國(guó)派克放大器派克電磁閥，派克換向閥，派克方向閥，派克溢流閥，派克柱塞泵，派克葉片泵，派克氣動(dòng)閥，
派克氣缸，派克過(guò)濾器，parker濾芯，派克濾芯，派克線圈，派克，美國(guó)派克PARKER公司液壓產(chǎn)品:PARKER派克伺服閥,PARKER派克電磁閥,PARKER派克比例閥,
PARKER派克柱塞泵,PARKER派克馬達(dá),PARKER派克放大器,PARKER派克插裝閥，parker接頭,
parker軟管,parker快速接頭,派克接頭,派克快速接頭
 三大承諾：
1、保證全新*
2、保證安全準(zhǔn)時(shí)發(fā)貨
3、保證售后服務(wù)質(zhì)量
訂購(gòu)流程：

2、我方會(huì)根據(jù)詢(xún)價(jià)單型號(hào)查詢(xún)價(jià)格以及交貨期，擬一份詳細(xì)正規(guī)報(bào)價(jià)單傳真給貴方采購(gòu)員；
3，客戶(hù)收到報(bào)價(jià)單并確認(rèn)型號(hào)無(wú)誤后如需訂購(gòu)產(chǎn)品；
4、報(bào)價(jià)單負(fù)責(zé)人根據(jù)客戶(hù)提供型號(hào)以及數(shù)量擬份銷(xiāo)售合同；
5、客戶(hù)收到合同查閱同意后蓋章回傳并按照合同銷(xiāo)售金額匯款到公司開(kāi)戶(hù)行
6、我公司財(cái)務(wù)查到款后，業(yè)務(wù)員安排發(fā)貨并通知客戶(hù)跟蹤運(yùn)單確認(rèn)收到貨

我們的流程是 詢(xún)價(jià)→報(bào)價(jià)→合同→訂貨→發(fā)貨→售后，我們本著信譽(yù)、客戶(hù)*、品牌服務(wù)、規(guī)范管理的經(jīng)營(yíng)理念竭誠(chéng)為您服務(wù)

產(chǎn)品報(bào)價(jià)及貨期說(shuō)明 因工業(yè)液壓、自動(dòng)化各進(jìn)口品牌備件型號(hào)繁多，歐美產(chǎn)品價(jià)格貨期實(shí)時(shí)變化，因此很難實(shí)時(shí)標(biāo)出準(zhǔn)確價(jià)格，故具體產(chǎn)品信息、報(bào)價(jià)及貨期請(qǐng)以我公司報(bào)價(jià)單為準(zhǔn) ,給您帶來(lái)不便敬請(qǐng)諒解！以上信息由上海杰爾德公布，終解釋權(quán)歸上海杰爾德液壓有限公司所有。感謝您的合作，竭誠(chéng)為您服務(wù)。

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壓力調(diào)節(jié)閥工作原理：

通過(guò)接收工業(yè)自動(dòng)化控制系統(tǒng)的信號(hào)（如：4~20mA）來(lái)驅(qū)動(dòng)閥門(mén)改變閥芯和閥座之間的截面積大小控制管道介質(zhì)的流量、溫度、壓力等工藝參數(shù)。實(shí)現(xiàn)自動(dòng)化調(diào)節(jié)功能。

種類(lèi)

編輯

由于氣動(dòng)調(diào)節(jié)閥具有本質(zhì)防爆、性能可靠等優(yōu)點(diǎn)，國(guó)內(nèi)外調(diào)節(jié)閥仍以氣動(dòng)為主。

過(guò)去，國(guó)內(nèi)正式生產(chǎn)的小流量調(diào)節(jié)閥。使用壓力可達(dá)100公斤/厘米 2 ，額定的流通能力C 值可以 從0.05 到0.0012。其閥座孔徑為3毫米，閥芯為圓柱形，上面刻有一道或數(shù)道V 型槽 ，閥桿行程6毫米，閥門(mén) 無(wú)配套 的定位器，因此控制精度較差。

我國(guó)也引進(jìn)了小流量調(diào)節(jié)閥。流通能力約為0.001，閥芯為帶有缺口的圓柱形。工作壓力為300公斤/厘米 2 閥桿行程7/16英寸，閥芯為圓錐形，該閥門(mén)帶有摩爾公司 的頂裝定位器。

上述這類(lèi)閥門(mén)的特點(diǎn)是結(jié)構(gòu)簡(jiǎn)單，重量輕。常用的閥座孔徑為1/8～1/4英寸(約為3.175A-6.35 毫米)，閥桿行程為1/4～l/2英寸(合6.35～12.7 毫米)。這類(lèi)閥門(mén)的流量能力小可以做到0.00006，以至更小。

一般地說(shuō)，圓柱開(kāi)槽型的閥芯，在特性化方面比圓錐形好，它可以通過(guò)改變 槽深來(lái)獲得 設(shè)計(jì)特性，但后者調(diào)節(jié)可*性好，因?yàn)橥ㄟ^(guò)閥門(mén)的流體，分布在閥芯截面的整個(gè)圓周上。這種閥門(mén)常用在精度要求不很高的場(chǎng)合。但容量精度和特性的重現(xiàn)性較差。

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對(duì)于高壓小流量調(diào)節(jié)閥，還必須考慮由主于高壓和高壓差帶來(lái)的一系列問(wèn)題。如執(zhí)行機(jī)構(gòu)必須具有足夠的輸出力，以克服介質(zhì)的不平衡力，閥門(mén)零件強(qiáng)度問(wèn)題，高壓密封問(wèn)題，而 關(guān)鍵的是閥芯、閥座的材質(zhì)和加工問(wèn)題。

高壓調(diào)節(jié)閥閥芯、閥座損壞原因很復(fù)雜，這里面的理論不盡相同，但普遍引起重視的是高速液(氣)流相對(duì)閥芯、閥座運(yùn)動(dòng)引起的沖刷現(xiàn)象(亦 稱(chēng)速度 效應(yīng))和液體介質(zhì)在高壓差下的氣蝕現(xiàn)象。前者損壞形式是與流線有一定關(guān)系的沖刷痕跡，后者則是海綿狀孔洞。

在有氣蝕產(chǎn)生的場(chǎng)合下，如果閥芯，閥座材質(zhì)選用不當(dāng)，少則兒天，多則幾個(gè)月，閥門(mén)就將報(bào)廢。

解決氣蝕問(wèn)題應(yīng)從求避免氣蝕的方法和耐氣蝕 的材料著手，避免氣蝕的方法有幾種。

1、改進(jìn)閥芯，閥座設(shè)計(jì)，使其具有合理的液流速度分布和壓力分布。如小流量調(diào)節(jié)閥采用狹長(zhǎng)通道式閥芯、閥座。閥芯、閥座孔都有很小的錐度，適用于在恒定的上游壓力條件下精確地控制流量。由于這種 結(jié)構(gòu)具確吸收 能量，減小氣蝕的功能，據(jù)資料報(bào)導(dǎo)，它曾用于4200公斤/厘米 2 的壓降下。

2、在 條件充許的 情況下，在液流中充氣，以局部地或全部地消除低壓區(qū)。

3、閥門(mén)串聯(lián)使用，以減小每個(gè)閥的壓降。

4、使閥前后壓差低于該介質(zhì)在調(diào)節(jié)閥入口溫度下產(chǎn)生汽蝕現(xiàn)象的大允許壓差。

5、介質(zhì)在“流開(kāi)”狀態(tài)下工作，允許壓差比“流閉”狀態(tài)大三倍多。 ^[2] 

結(jié)構(gòu)

編輯

自力式壓力調(diào)節(jié)閥因?yàn)椴恍枰渌鈦?lái)能源如電源、氣源，僅靠介質(zhì)自身的能量來(lái)驅(qū)動(dòng)，既節(jié)能又環(huán)保，使用方便，安裝完畢后設(shè)定好壓力值即可投入自動(dòng)運(yùn)行，所以在對(duì)控制精度要求不高，又缺乏電源、氣源的場(chǎng)合，得到了越來(lái)越廣泛的使用。但在使用過(guò)程中，一定要注意選型的特殊性，否則容易引起事故。在使用過(guò)程中，要注意使用的選型和安裝環(huán)境，因此，詳細(xì)了解自力式壓力調(diào)節(jié)閥的工作原理和結(jié)構(gòu)是非常重要的。

特點(diǎn)

編輯

所謂小流量調(diào)節(jié)閥，顧名思義，就是流通能力很小的調(diào)節(jié)閥。

閥門(mén)的流通能力是在統(tǒng)一條件下的閥門(mén)容量指標(biāo)。我國(guó)用C 值表示 。其定義為：閥門(mén)全開(kāi)時(shí)，當(dāng)閥前后壓差為1公斤/厘米 2 ，介質(zhì)重度為1克/ 厘米 3 時(shí) ，每小時(shí)流過(guò)閥門(mén)的介質(zhì)量(米 3 /時(shí))。對(duì)于不可壓縮流體，在充分湍流的狀態(tài)下閥門(mén)的流通能力僅僅取決于閥本身的結(jié)構(gòu)。在計(jì)算所需的閥門(mén)流通能力時(shí)，應(yīng)注意介質(zhì)不同或流動(dòng)條件不同時(shí)， 閥內(nèi)流動(dòng) 狀態(tài)會(huì)有很大的差異。

在小流量情況下，尤其是粘性流體和低壓下工作時(shí)，流體的主約束往往是層流或?qū)恿骱屯牧鞯幕旌蠎B(tài)。層流時(shí)，經(jīng)過(guò)閥門(mén)的介質(zhì)流量和閥前后壓差呈線性關(guān)系。而在層流和湍流混合態(tài)下，隨著雷諾數(shù)的增加，即使壓差不變，流經(jīng)閥門(mén)的介質(zhì)量也會(huì)增加。在*湍流時(shí)，流量才不隨雷諾數(shù)變化而變化。盡管如此，選擇小流量調(diào)節(jié)閥，仍然用傳統(tǒng)的方法和計(jì)算公式進(jìn)行。但是其計(jì)算值和實(shí)際值偏離很大，據(jù)資料介紹在 Cv=0.01以下時(shí)，它只是作為一個(gè)容量指標(biāo)，具有參考意義而已。實(shí)際流通能力應(yīng)根據(jù)經(jīng)驗(yàn)確定。

隨著流通能力減小，閥門(mén)的可調(diào)比將下降。但少也能保證10:l到15:1之間，如果可調(diào)比再小，就難以進(jìn)行流量的調(diào)節(jié)。

閥門(mén)在串聯(lián)使用時(shí)，隨著開(kāi)度變化，,閥前后壓差也有變化，因此使閥門(mén)的工作特性曲線偏離理想特性。如果管路阻力大，直線性會(huì)變成快開(kāi)特性，而喪失調(diào)節(jié)能力。等百分比特性將變成直線特性。小流量情況下，由于很少有管路阻力，上述特性畸變就不大了，對(duì)等百分比特性，實(shí)際上也就沒(méi)有必要。從制造的角度來(lái)說(shuō)， Cv =0.05以下時(shí)，也不可能再產(chǎn)生等百分比的側(cè)面形狀。因此，對(duì)小流量閥主要的問(wèn)題是如何將流量控制在所需要的范圍之內(nèi)。

從經(jīng)濟(jì)效果出發(fā)，使用者希望一個(gè)閥門(mén)可同時(shí)用于截流和調(diào)節(jié)，也是可以做到的。但對(duì)于調(diào)節(jié)閥來(lái)說(shuō)，主要是實(shí)現(xiàn)對(duì)流量的控制，關(guān)閉是次要的。認(rèn)為小流量閥本身流量很小，在關(guān)閉時(shí)很容易實(shí)現(xiàn)截流，是錯(cuò)誤的。國(guó)外對(duì)小流量調(diào)節(jié)閥泄漏量一般也做了規(guī)定。當(dāng)Cv 值為10 時(shí) ，該閥門(mén)的泄漏量規(guī)定為：在3.5 公斤/厘米。氣壓下，泄漏量為大流量的1 % 以下。 ^[1] 

用途

編輯

自力式壓力調(diào)節(jié)閥(以下簡(jiǎn)稱(chēng)壓力閥)是一種無(wú)需外來(lái)能源而只依靠調(diào)介質(zhì)自身的壓力變化進(jìn)行自動(dòng)調(diào)節(jié)壓力的節(jié)能型產(chǎn)品.具有測(cè)量、執(zhí)行、控制的綜合功能。廣泛適用于石油、化工、冶金、輕工等工業(yè)部門(mén)及城市供熱、供暖系統(tǒng)。本產(chǎn)品可用于非腐蝕性〔溫度350℃〕的液體、氣體和蒸汽等介質(zhì)的壓力控制裝置。