減壓閥是一種自動降低管路工作壓力的專門裝置，它可將閥前管路較高的液體壓力減少至閥后管路所需的水平。這里的傳輸介質主要是水。減壓閥廣泛用于高層建筑、城市給水管網水壓過高的區域、礦井及其他場合，以*保*給水系統中各用水點獲得適當的服務水壓和流量。鑒于水的漏失率和浪費程度幾乎同給水系統的水壓大小成正比，因此減壓閥具有改善系統運行工況和潛在節水作用，據統計其節水效果約為30%。減壓閥的構造類型很多，以往常見的有薄膜式、內彈簧活塞式等。減壓閥的基本作用原理是靠閥內流道對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的進出口水壓差自動調節。2007年上海閔高閥門有限公司引進國外技術，生產出一些新型減壓閥，如定比式減壓閥。定比減壓原理是利用閥體中浮動活塞的水壓比控制，進出口端減壓比與進出口側活塞面積比成反比，這種減壓閥工作平穩無振動，使得國內減壓閥生產技術進一步提高；閥體內無彈簧，故無彈簧銹蝕、金屬疲勞失效之慮；密封性能良好不滲漏，因而既減動壓（水流動時）又減靜壓（流量為0時）；特別是在減壓的同時不影響水流量。減壓閥通常有DN15～DN100等多種規格，閥前、后的工作壓力分別為<1MPa和0．1～0．5MPa，調壓范圍誤差為±5%～10%。
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減壓閥簡介及主要*牌
減壓閥是一種自動降低管路工作壓力的專門裝置，它可將閥前管路較高的液體壓力減少至閥后管路所需的水平。這里的傳輸介質主要是水。減壓閥廣泛用于高層建筑、城市給水管網水壓過高的區域、礦井及其他場合，以*保*給水系統中各用水點獲得適當的服務水壓和流量。鑒于水的漏失率和浪費程度幾乎同給水系統的水壓大小成正比，因此減壓閥具有改善系統運行工況和潛在節水作用，據統計其節水效果約為30%。減壓閥的構造類型很多，以往常見的有薄膜式、內彈簧活塞式等。減壓閥的基本作用原理是靠閥內流道對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的進出口水壓差自動調節。2007年上海閔高閥門有限公司引進國外技術，生產出一些新型減壓閥，如定比式減壓閥。定比減壓原理是利用閥體中浮動活塞的水壓比控制，進出口端減壓比與進出口側活塞面積比成反比，這種減壓閥工作平穩無振動，使得國內減壓閥生產技術進一步提高；閥體內無彈簧，故無彈簧銹蝕、金屬疲勞失效之慮；密封性能良好不滲漏，因而既減動壓（水流動時）又減靜壓（流量為0時）；特別是在減壓的同時不影響水流量。減壓閥通常有DN15～DN100等多種規格，閥前、后的工作壓力分別為<1MPa和0．1～0．5MPa，調壓范圍誤差為±5%～10%。
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1823300036 FPT-S-RSK-G100-G100
1823312001 CAPELLO FILETTATO VTS02
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