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定做內外環金屬纏繞墊廠家
通過改變金屬帶、非金屬帶、內外環的材質，金屬纏繞墊片可適用于各種極度危害介質、高度危害介質、可燃介質或溫度高、溫差大、極低溫環境，是一種密封性 能良好的中壓墊片，可廣泛應用于各種中低壓設備和管 法蘭密封。金屬纏繞墊片的選用目前，尤其是石墨纏繞墊在煉油廠應用zui為普遍，約占常用密封墊片的80%以上。
定做內外環金屬纏繞墊廠家
下表是纏繞墊片直徑公差（即用于法蘭的名義管道直徑）：
| DIN (mm) | ANSI B16.5 BS1560 (mm) Mss sp-44 | API 605 | 公差 | |
| 內環內徑 墊片內徑 | <=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 | ||
| 墊片外徑 | <=600 | <=24" | <=24" | ±0.9 |
| >600 and <=16000 | >24" and <=60" | >24" and <=60" | ±1.8 | |
| 1600 | >60" | ±2.2 | ||
| 外環外徑 | >=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 |