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                                                                                                                                歡迎來到美國YLOK閥門一級代理商官方網站

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                                                                                                                                進口氣動截止閥

                                                                                                                                  詳細說明

                                                                                                                                  進口氣動截止閥

                                                                                                                                  進口氣動截止閥產品概述

                                                                                                                                  美國依洛克(YLOK)閥門公司的進口氣動截止閥(不銹鋼氣動截止閥,氣動高溫截止閥,氣動法蘭截止閥)一般為全開全閉式。從流量特性考慮,截止閥和球閥具有啟閉行程短,速度快,密封可靠,啟閉靜態

                                                                                                                                  氣動截止閥力矩小等特點,因而兩類產品都得到應用。但從可靠性考慮,主流產品仍然是氣動截止閥。

                                                                                                                                  氣動截止閥的氣缸為定型產品,依作用方式可分單作用和雙作用兩種。單作用產品帶復位圓柱彈簧,具有失氣自動復位功能,即失氣時氣缸活塞(或膜片)在彈簧作用下,驅動氣缸推桿回復到氣缸初始位置(行程的原始位置)。雙作用氣缸無復位彈簧,推桿進退須依靠變換氣缸氣源的進出口位置。氣源從活塞上腔進時,推桿向下運動。氣源從活塞下腔進時,推桿向上運動。由于不帶復位彈簧,雙作用氣缸對比同徑單作用氣缸具有更大的推力,但不具備自動復位功能。顯然不同的進氣位置使推桿有不同的方向運動。當進氣位置在推桿的背腔時,進氣使推桿前進,這種方式稱為正作用氣缸。反之進氣位置在推桿同側時,進氣使推桿后退,這種方式稱反作用氣缸。氣動截止閥因為一般需要失氣保護功能,通常選用單作用氣動截止閥。

                                                                                                                                  進口氣動截止閥規范標準

                                                                                                                                  1、 設計標準:GB/T 12235

                                                                                                                                  2、 連接標準:

                                                                                                                                      1)對焊端BW:按GB/T 12224

                                                                                                                                      2)法蘭端RF:按JB79;GB/T 9113;HG20592

                                                                                                                                  3、 閥門檢驗與試驗:

                                                                                                                                  GB/T 13927;JB/T 9092

                                                                                                                                  進口氣動截止閥主要技術參數

                                                                                                                                  通徑:DN15-300mm

                                                                                                                                  壓力:1.6,2.5,4.0Mpa

                                                                                                                                  閥體材質:鑄鋼,不銹鋼等

                                                                                                                                  閥軸2Cr13

                                                                                                                                  溫度:-29-425

                                                                                                                                  適用介質:水,蒸汽,油品等

                                                                                                                                  進口氣動截止閥選型

                                                                                                                                  a: 產品名稱與氣動截止閥的型號

                                                                                                                                  b:  氣動截止閥的操作方式 (有手動 渦輪傳動 氣動 電動等)

                                                                                                                                  c:  氣動截止閥的密封面材質和硬度

                                                                                                                                  d:  氣動截止閥的閥體材質

                                                                                                                                  e:  氣動截止閥的壓力

                                                                                                                                  f:  氣動截止閥的使用介質(名稱、粘度、顆粒 腐蝕性、毒性)

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