安沃馳調壓閥0821302409現貨出售-*原裝

安沃馳調壓閥0821302409現貨出售-*原裝

調壓閥, 系列 NL2-RGS-...-DS - 0821302409

• G 1/4
• Qn = 2000 l/min
• 標準型壓力調節器
• 操作 機械式
• 帶連續供氣
• 適合ATEX

 壓力調節閥亦稱自力式平衡閥、流量控制閥、流量控制器、動態平衡閥、流量平衡閥，是一種直觀簡便的流量調節控制裝置，管網中應用流量調節閥可直接根據設計來設定流量，閥門可在水作用下，自動消除管線的剩余壓頭及壓力波動所引起的流量偏差，無論系統壓力怎樣變化均保持設定流量不變，該閥這些功能使管網流量調節一次完成，把調網工作變為簡單的流量分配，有效的解決管網的水力失調。流量調節閥主要應用于：集中供熱（冷）等水系統中，使管網流量按需分配，消除水系統水力失調，解決冷熱不均問題。

供應德國AVENTICS安沃馳氣動元件主要產品：氣缸,活塞桿氣缸,無桿氣缸,旋轉驅動裝置,氣動閥,閥島,調壓閥,流量閥,止回閥,氣源處理,真空發生器,傳感器
aventics電磁閥安沃馳氣動閥德國力士樂濾芯，rexroth濾芯安沃馳氣動閥安沃馳氣缸  安全閥、調壓閥、精密調壓閥、壓力調節閥、帶管套的連接電纜、接線盒、分氣塊、安裝組件、氣動計時器、壓力開關、信號斷路器、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通手動滑閥、彎角 球閥、隔壁 球閥、二位三通 截止閥、急停閥、快速通風閥、先導式單向閥、單向節流閥、單向節流閥、止回閥、單向節流閥、單向節流閥、線圈、多極插頭、橋式連接件、垂直連接的壓力調節器、回路中間板、端板組件、端板組件、直角底板、螺紋接口、單個底板、分氣條、直角底板、手動換向的按鈕、兩位五通換向閥、氣動閥組、對中環、傳感器、無桿氣缸、工業緩沖器、滑槽氣缸力士樂傳感器，力士樂活塞桿氣缸，力士樂電磁閥，力士樂換向閥
力士樂方向閥，力士樂溢流閥，力士樂比例閥，力士樂伺服閥
力士樂流量控制閥，力士樂截止閥，力士樂柱塞泵，力士樂葉片泵
力士樂油缸，力士樂馬達，力士樂氣動閥，力士樂氣缸，力士樂氣動
力士樂線圈，力士樂插頭， 力士樂放大器力士樂導軌力士樂齒輪泵
力士樂內齒輪泵力士樂滑塊，力士樂滑軌，力士樂線軌
安沃弛傳感器，安沃弛氣動三聯件安沃弛氣動兩聯件aventics氣動閥
，aventics氣缸，aventics傳感器，BOSCH氣動元件,BOSCH氣缸
BOSCH電磁閥，BOSCH換向閥，BOSCH氣動閥，BOSCH手動閥
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
德國力士樂柱塞泵力士樂油泵rexroth油泵力士樂齒輪泵力士樂減壓閥
美國派克油泵parker齒輪泵parker插裝閥，美國派克插裝閥，parker過濾器
，派克濾芯美國派克，parker馬達，派克馬達，
    ，parker放大器美國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，派克氣動閥，
派克氣缸，派克過濾器，parker濾芯，派克濾芯，派克線圈，派克，美國派克PARKER公司液壓產品: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,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、保證安全準時發貨
3、保證售后服務質量
訂購流程：

2、我方會根據詢價單型號查詢價格以及交貨期，擬一份詳細正規報價單傳真給貴方采購員；
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6、我公司財務查到款后，業務員安排發貨并通知客戶跟蹤運單確認收到貨

我們的流程是 詢價→報價→合同→訂貨→發貨→售后，我們本著信譽、客戶*、品牌服務、規范管理的經營理念竭誠為您服務

產品報價及貨期說明 因工業液壓、自動化各進口品牌備件型號繁多，歐美產品價格貨期實時變化，因此很難實時標出準確價格，故具體產品信息、報價及貨期請以我公司報價單為準 ,給您帶來不便敬請諒解！以上信息由上海杰爾德公布，終解釋權歸上海杰爾德液壓有限公司所有。感謝您的合作，竭誠為您服務。

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由于氣動調節閥具有本質防爆、性能可靠等優點，國內外調節閥仍以氣動為主。

過去，國內正式生產的小流量調節閥。使用壓力可達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，上面刻有一道或數道V 型槽 ，閥桿行程6毫米，閥門 無配套 的定位器，因此控制精度較差。

我國也引進了小流量調節閥。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，該閥門帶有摩爾公司 的頂裝定位器。

上述這類閥門的特點是結構簡單，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)。這類閥門的流量能力小可以做到0.00006，以至更小。

一般地說，圓柱開槽型的閥芯，在特性化方面比圓錐形好，它可以通過改變 槽深來獲得 設計特性，但后者調節可*性好，因為通過閥門的流體，分布在閥芯截面的整個圓周上。這種閥門常用在精度要求不很高的場合。但容量精度和特性的重現性較差。

閥門流通能力，主要取決于流孔直徑，對于一個1/16英寸的流孔，理論上的 Cv 值約為0·06，或者說只是接近小流量的上限。要進～步減小流量，必須從根本上減小閥芯的行程或約束流孔 的開度
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8931290054德國安沃馳先導式單向閥R480149541德國安沃馳先導式單向閥R480753024
8931290354德國安沃馳先導式單向閥R480149544德國安沃馳先導式單向閥R480753025
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8931290424德國安沃馳先導式單向閥R480149554德國安沃馳先導式單向閥R480753027
8931290494德國安沃馳先導式單向閥R480149590德國安沃馳先導式單向閥R480753028
8931800184德國安沃馳先導式單向閥R480149592德國安沃馳先導式單向閥R480753029
8931801444德國安沃馳先導式單向閥R480149604德國安沃馳先導式單向閥R480753030
8931801844德國安沃馳先導式單向閥R480149608德國安沃馳先導式單向閥R480753031
8931801944德國安沃馳先導式單向閥R480149616德國安沃馳先導式單向閥R480753032
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8931843814德國安沃馳先導式單向閥R480149681德國安沃馳先導式單向閥R480753069
8931843824德國安沃馳先導式單向閥R480149683德國安沃馳先導式單向閥R480753076
8931843834德國安沃馳先導式單向閥R480149729德國安沃馳先導式單向閥R480753080
8931843844德國安沃馳先導式單向閥R480149751德國安沃馳先導式單向閥R480753085
8931846604德國安沃馳先導式單向閥R480149774德國安沃馳先導式單向閥R480753086
8932002404德國安沃馳先導式單向閥R480149794德國安沃馳先導式單向閥R480753087
8932002504德國安沃馳先導式單向閥R480149844德國安沃馳先導式單向閥R480753090
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8932007112德國安沃馳先導式單向閥R480149921德國安沃馳先導式單向閥R480753100
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8933000124德國安沃馳先導式單向閥R480149978德國安沃馳先導式單向閥R480753122
8933500814德國安沃馳先導式單向閥R480149982德國安沃馳先導式單向閥R480753123
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8933502504德國安沃馳先導式單向閥R480150043德國安沃馳先導式單向閥R480753129
8933502514德國安沃馳先導式單向閥R480150058德國安沃馳先導式單向閥R480753130
8934010504德國安沃馳先導式單向閥R480150078德國安沃馳先導式單向閥R480753132
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8935109904德國安沃馳先導式單向閥R480150124德國安沃馳先導式單向閥R480753139
8935111104德國安沃馳先導式單向閥R480150148德國安沃馳先導式單向閥R480753142
8935118602德國安沃馳先導式單向閥R480150151德國安沃馳先導式單向閥R480753146
8935118612德國安沃馳先導式單向閥R480150158德國安沃馳先導式單向閥R480753149
8935118622德國安沃馳先導式單向閥R480150160德國安沃馳先導式單向閥R480753159
8935118632德國安沃馳先導式單向閥R480150161德國安沃馳先導式單向閥R480753163
8935118642德國安沃馳先導式單向閥R480150167德國安沃馳先導式單向閥R480753165
8935118652德國安沃馳先導式單向閥R480150168德國安沃馳先導式單向閥R480753167
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8938009340德國安沃馳先導式單向閥R480150385德國安沃馳先導式單向閥R480753221
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8939001300德國安沃馳先導式單向閥R480151593德國安沃馳先導式單向閥R480753424
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8939001320德國安沃馳先導式單向閥R480151599德國安沃馳先導式單向閥R480753435
8939001340德國安沃馳先導式單向閥R480151602德國安沃馳先導式單向閥R480753443
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結構

編輯

自力式壓力調節閥因為不需要其它外來能源如電源、氣源，僅靠介質自身的能量來驅動，既節能又環保，使用方便，安裝完畢后設定好壓力值即可投入自動運行，所以在對控制精度要求不高，又缺乏電源、氣源的場合，得到了越來越廣泛的使用。但在使用過程中，一定要注意選型的特殊性，否則容易引起事故。在使用過程中，要注意使用的選型和安裝環境，因此，詳細了解自力式壓力調節閥的工作原理和結構是非常重要的。

特點

編輯

所謂小流量調節閥，顧名思義，就是流通能力很小的調節閥。

閥門的流通能力是在統一條件下的閥門容量指標。我國用C 值表示 。其定義為：閥門全開時，當閥前后壓差為1公斤/厘米 2 ，介質重度為1克/ 厘米 3 時 ，每小時流過閥門的介質量(米 3 /時)。對于不可壓縮流體，在充分湍流的狀態下閥門的流通能力僅僅取決于閥本身的結構。在計算所需的閥門流通能力時，應注意介質不同或流動條件不同時， 閥內流動 狀態會有很大的差異。

在小流量情況下，尤其是粘性流體和低壓下工作時，流體的主約束往往是層流或層流和湍流的混合態。層流時，經過閥門的介質流量和閥前后壓差呈線性關系。而在層流和湍流混合態下，隨著雷諾數的增加，即使壓差不變，流經閥門的介質量也會增加。在*湍流時，流量才不隨雷諾數變化而變化。盡管如此，選擇小流量調節閥，仍然用傳統的方法和計算公式進行。但是其計算值和實際值偏離很大，據資料介紹在 Cv=0.01以下時，它只是作為一個容量指標，具有參考意義而已。實際流通能力應根據經驗確定。

隨著流通能力減小，閥門的可調比將下降。但少也能保證10:l到15:1之間，如果可調比再小，就難以進行流量的調節。

閥門在串聯使用時，隨著開度變化，,閥前后壓差也有變化，因此使閥門的工作特性曲線偏離理想特性。如果管路阻力大，直線性會變成快開特性，而喪失調節能力。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，對等百分比特性，實際上也就沒有必要。從制造的角度來說， Cv =0.05以下時，也不可能再產生等百分比的側面形狀。因此，對小流量閥主要的問題是如何將流量控制在所需要的范圍之內。

從經濟效果出發，使用者希望一個閥門可同時用于截流和調節，也是可以做到的。但對于調節閥來說，主要是實現對流量的控制，關閉是次要的。認為小流量閥本身流量很小，在關閉時很容易實現截流，是錯誤的。國外對小流量調節閥泄漏量一般也做了規定。當Cv 值為10 時 ，該閥門的泄漏量規定為：在3.5 公斤/厘米。氣壓下，泄漏量為大流量的1 % 以下