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["调节阀泄漏量标准"]
[]
["国标GB/T4213.92"]
["泄漏等级","试验介质","试验压力","最大阀座泄漏量1/h"]
["Ⅰ","由用户与制造厂商定"]
["Ⅱ","水、空气或氮气","A","5×10-3×阀额定容量"]
["Ⅲ",null,null,"10-3×阀额定容量"]
["Ⅳ","水","A或B","10-4×阀额定容量"]
[null,"空气或氮气","A"]
["Ⅳ-S1","水","A或B","5×10-4×阀额定容量"]
[null,"空气或氮气","A"]
["Ⅳ-S2","空气或氮气","A","2×10-4×△P×D"]
["V","水","B","1.8×10-7×△P×D"]
["VI","空气或氮气","A","3×10-3×△P(续表泄漏量)"]
[]
["续表"]
["阀座直径",null,20,25,40,50,65,80,100,150,200,250,300,350,400]
["泄漏量","ml/min",0.1,0.15,0.3,0.45,0.6,0.9,1.7,4,6.75,11.1,16,21.6,28.4]
[null,"气泡数/min","—",1,2,3,4,6,11,27,45,"—","—","—","—"]
["  注：1.每分钟气泡数是用外径6mm、壁厚1mm的管子垂直浸入水下5~10mm深度的条件下测得的，管端表面应光滑。"]
["      2.如果阀座直径与表列值之一相差2mm以上，则泄漏系数可假设泄漏量与阀座直径的平方成正比的情况下通过内推法取得。"]
[]
[]
["美标ANSI B16.104-197"]
["泄漏等级","最大允许泄漏量",{"$nulls":3},"试验介质","试验压力"]
["Ⅱ","0.5%Cv",{"$nulls":3},"10～52℃的空气或水","   "]
[{"$nulls":6},"最大工作压差△P或501b/in2压差，取其较低者"]
["Ⅲ","0.1%Cv",{"$nulls":3},"10～52℃的空气或水","    "]
[{"$nulls":6},"最大工作压差△P或501b/in2压差，取其较低者"]
["Ⅳ","0.01%Cv",{"$nulls":3},"10～52℃的空气或水","    "]
[{"$nulls":6},"最大工作压差△P或501b/in2压差，取其较低者"]
["V","每英寸公称通径和每磅/英寸2压差时，",{"$nulls":3},"10～52℃的水","   "]
[null,"允许有0.0005ml/min的漏水",{"$nulls":4},"最大工作压差△P"]
["Ⅵ","阀门公称通径",null,"ml/min","气泡数/min","10～52℃的空气或氮气","    "]
[null,"in","mm",{"$nulls":3},"最大工作压差△P或501b/in2压差，取其较低者"]
[null,1,25,0.15,1]
[null,1.5,38,0.3,2]
[null,2,51,0.45,3]
[null,2.5,64,0.6,4]
[null,3,76,0.9,6]
[null,4,102,1.7,11]
[null,6,152,4,27]
[null,8,203,6.75,45]

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