金属缠绕石棉垫片
安装使用
注意事项
1、垫片的缠绕部分必须介于
之间,不要随意加宽缠绕部分的宽度,这样子势必影响螺栓的压紧力,从而影响垫片的密封性能。
上,这是缘于通常型垫片在
轴向压紧力作用下,
内圈焊点容易开焊,从而导致垫片失效。
4、一定不能用低材质垫片取代高材质垫片。避免材料腐蚀或其余原因造成垫片失效。
金属缠绕石棉垫片
下表是缠绕垫片直径公差(即用于法兰的名义管道直径):
DIN (mm)ANSI B16.5
BS1560 (mm)
Mss sp-44API 605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 <=16000>24" and <=60">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