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金屬纏繞墊不銹鋼304材質(zhì)
應(yīng)用于石油,、化工、機(jī)械,、冶金,、電力、造船及管道,、閥門,、泵、壓力容器,、冷凝器,、塔、人孔 ,、手孔等法蘭連接處,，作靜密封之用。由于機(jī)械強(qiáng)度高,，使用方便,，壓縮回彈性好，更適合在劇烈的溫度交變場(chǎng)合應(yīng)用,。
金屬纏繞墊不銹鋼304材質(zhì)
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(nèi)環(huán)內(nèi)徑 墊片內(nèi)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(huán)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 |
常用金屬石墨纏繞墊片主要性能參數(shù)：
| 纏繞墊片系數(shù) | m=2.5-4 |
| 纏繞墊片使用壓力 | ≤25MPa |
| 纏繞墊片使用溫度 | -196℃-700℃(氧化性介質(zhì)中不高于600℃) |
| 纏繞墊片小預(yù)緊比壓 | y=68MPa |