PN16 PN25 法兰 - 欧洲压力 等级
PN16 和 PN25 法兰 是欧洲 DIN/EN 标准中的常用压力额定值。PN 代表公称压力，表示最大工作压力（巴）。
PN 等级系统
- PN6：6 巴工作压力
- PN10：10 巴（常用于水）
- PN16：16 巴（一般工业用）
- PN25：25 巴（更高压力）
- PN40：40 巴（高压）
- PN64/100：64-100 巴（特殊应用）
DIN 标准
- DIN 2501：螺栓法兰连接
- DIN 2527：盲孔法兰
- DIN 2573 标准：焊颈法兰
- EN 1092-1：现行欧洲标准
应用
- PN10/16：水处理、暖通空调、食品工业
- PN25/40：化工厂，蒸汽系统
- PN64+: 高压液压系统
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