進口氣動雙座調節閥
進口氣動雙座調節閥產品概述
美國沃克WORK進口氣動薄膜雙座調節閥采用雙號導向結構,配用多彈簧氣動薄膜執行機構。具有結構緊湊、重量輕、動作靈敏、閥容量大、流量特性精確、拆裝方便等優點。廣泛應用于精確控制氣體、液體、蒸汽等介質的工藝參數如壓力、流量、溫度、液位保持在給定值。特別適用于壓差較大,允許泄漏也較大且不是很清潔的介質場合。
本系列產品有標準型、波紋管密封型、夾套保溫型等多種品種。產品公稱壓力等級有PN16、40、64;閥體口徑范圍DN25~400。適用流體溫度有-250℃~+560℃范圍內多種檔次。泄漏量標準為Ⅲ級和Ⅳ級。流量特性為線性或百分比。多種多樣的品種規格可供選擇。
主要技術參數
技術參數: http:///cn/products/160.htm
公稱通徑DN(mm):20-300mm
額定流量
系數KV 直線:7.6-759
等百分比:6.9-693
執行機構 :正作用,反作用
額定行程L(mm):16-60mm
膜片有效面積Ae(cm2):280-1000
公稱壓力PN(MPa):1.6-6.4Mpa
固有流量特性 直線 等百分比
固有可調比R 50:1
信號范圍Pr(KPa) 20-60、20-100、40-200、60-100、80-240
氣源壓力Ps(MPa):0.14、0.25、0.28、0.40
選型
b: 氣動雙座調節閥的工作壓力、適用溫度
c: 氣動雙座調節閥的電源電壓
d: 氣動雙座調節閥的閥體材質
e: 氣動雙座調節閥的輸入、輸出信號
f: 防爆、防護等其他附加要求
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