| DN | 200mm~1200mm | |
| PN | 0.25~10MPa | |
| Pressure test | seat | 1.1*PN |
| shell | 1.5*PN | |
| Medium temperature | ≤425℃ | |
| medium | Steam, gas etc. | |
| Working pressure | 0.8*PN | |
Product Name: Quick close Extraction Check Valve
Quick close Steam Extraction Check Valve is mainly used for urgent stop flow back medium in the power plant steam turbine system. As emergency shut off valve, it can be closed in 0.5~1 S second to prevent steam turbine being damaged by back flowing medium (Steam and Cooling water) of the conduits.
