| 
 公称压力 PN  | 
 公称尺寸 DN  | 
 螺纹代号 M  | 
Dn | D1 | D2 | l1 | l2 | l3 | l4 | C | 
| 
 250 320  | 
3 | M24×1.5 | 3 | 21.8 | 13.5 | 18 | 3 | 2 | 10 | 1 | 
| 6 | 6 | |||||||||
| 160 | 10 | M36×2 | 11 | 33 | 20 | 26 | 4 | 3 | 11 | 1.5 | 
| 15 | 15 | |||||||||
| 25 | M48×2 | 25 | 45 | 32 | 32 | 4 | 12 | 
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