DIN (mm) ANSI B16.5
BS1560 (mm)
Mss sp-44 API 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" ±1.8
1600 >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