HG20610-2009 化工部欧洲体系
HG20631-2009化工部美洲体系
GB/T4622.2-97国家标准
JB/T4719-92机械部标准
JB/T90-94机械部标准
JB/T4705-2000机械部标准缠绕垫片
SH3407-96 石油化工企业
ASME B16.20 美标
DIN 德标
JIS B2404-1999 JIS TS-1998日标
BS 3381-1999英标金属缠绕垫片
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缠绕垫片系数
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m=2.5-4
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缠绕垫片使用压力
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≤25MPa
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缠绕垫片使用温度
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-196℃-700℃(氧化性介质中不高于600℃)
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缠绕垫片最小预紧比压
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y=68MPa
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下表是缠绕垫片直径公差(即用于法兰的名义管道直径)
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DIM(mm)ANSI B16.5
BS1560(mm)
Mss sp-44API605公差内环内径
垫片内径<=600<=24">=26" and <=34"±0.5>600 and <=800>24" and <=34>=36" and <=60"±0.9>800 and <=1600>34" and <=60" ±1.3>1600>60" ±1.6垫片外径<=600<=24"<=24"±0.9>600 and <=160000>24" and <=60" ±1.81600>60" ±2.2外环外径 >1/2" and <=60"±0.9<=600<=24" 0-1.0>600 and <=1000>24" and <=34" 0-1.8>1000 and <=1600>34" and <=60" 0-2.2
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