大城县基本型金属缠绕垫片
金属缠绕垫是用金属带与软填充物缠绕垫而成，金属缠绕垫因其金属带的材质不同分类为：碳钢缠绕垫、201不锈钢缠绕垫、304缠绕垫、316缠绕垫等，金属缠绕垫因其填充物不同分类：石墨缠绕垫、四氟缠绕垫、石棉缠绕垫等。
大城县基本型金属缠绕垫片
技术参数
缠绕垫片系数
m=2.5-4
缠绕垫片使用压力
≤25MPa
缠绕垫片使用温度
-196℃-700℃(氧化性介质中不高于600℃)
缠绕垫片小预紧比压
y=68MPa
下表是缠绕垫片直径公差(即用于法兰的名义管道直径)
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
