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Pressure reducing valve
Product Name:
Pressure reducing valve
Description:

結構特點和用處


本系列減壓閥是本公司參考國外先進產品而研制開發成功的新型先導式超大膜片減壓閥,本產品在普通減壓閥的基礎上做了很大的改進。膜片采用了新型材料,并大大加工了工作面積,因此閥門上游壓力或下游負荷細微的變化都能及時準確的反饋到主閥膜片,來調節主閥的開度,確保下游壓力的穩定。
本產品的另一個突出的特點為:同一個閥體上可安裝和互換多個導閥在穩壓的同時,實現溫度控制、上游壓力的控制、遠程的開關控制等。

主要技術參數和性能指標
公稱壓力(Mpa) 2.5
殼體試驗壓力(Mpa)* 3.75
密封試驗壓力(Mpa) 2.5
最高進口壓力(Mpa) 2.5
出口壓力范圍(Mpa) 0.02-1.6
壓力特性偏差(Mpa)△P2P GB12244-1989
流量特性偏差(Mpa)P2G GB12244-1989
滲漏量 GB12245-1989

主要零件材料
零件名稱 零件材料
閥體 閥蓋 WCB
閥座 2Cr13
閥瓣 2Cr13
閥桿 2Cr13
膜片 1Cr18Ni9Ti
調節彈簧 60Si2Mn

流量系數(Cv)

DN 15 20 25 32 40 50
Cv 2.9 5.3 8.6 11.6 16.5 29.1

連接尺寸

DN L H1 H D
15 147 235 145 207
20 154 235 145 207
25 160 235 145 207
32 180 250 160 220
40 16 250 160 220
50 230 270 180 220
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