It is used for the pipes of water, vapour or oul by functions of open and close.
| Size: | DN15-DN300 |
| Norminal pressure(MPA) | 1.6/2.5/4.0/6.3 |
| Suitbk temperature | ≤425°C |
| Seal test | 1.8/2.8/4.51/7.15mpa |
| Shell test | 2.4/3.8/6.15/9.75mpa |
| Suitable medium: | steam,water,oil |
| Design and manufacture | BS 1873, BSEN558-1 |
| Face to face | DIN 3202, EN1092-1 |
| Flange end | DIN 2544, DIN 2545 |


