Coosai’s series cast steel gate valve are used to cut or connect the pipe media under nominal pressure between PN 16～PN 420(class 150～class 2500),DN15～DN1200(NPS½～NPS48) working temperatures≤600℃.in oil industry. Chemical industry, fossil fired power plants.
| Design | ASME B16.34/API 600 |
| Bolted Bonnet | ASME B16.10 |
| End to End | ASME B16.10 |
| End Flange | ASME B16.5 |
| BW End | ASME B16.25 |
| Test | API 598 |
| Special | NACE MR-01-75 |
