Extraction Steam Quick-Closing Check Valve for Turbine Protection
Power-station check valve providing rapid isolation against extraction-steam backflow and heater-leakage water entry during turbine upset conditions.
| Size Range | 3″–40″ (DN80–DN1000) |
|---|---|
| Pressure Rating | Class 150–900 (PN16–PN160) |
| Body Material | WCB, WC6, WC9, ZG20CrMoV |
| End Connection | BW |
| Temperature Range | -29℃–575℃ |
Frequently Asked Questions
The original page identifies sudden load rejection, when extraction-line and heater steam backflow must be stopped.
It closes to prevent steam from extraction lines and heaters from flowing back into the turbine.
The valve prevents water entering the turbine through extraction lines when heater leakage creates a water-hammer risk.
Applications include extraction systems in power plants and cogeneration plants.
Provide extraction-system conditions, size, pressure, temperature, material, BW data, closing requirement, quantity and drawings.
Product Overview
The Vornet Extraction Steam Quick-Closing Check Valve is used in extraction systems of power plants and cogeneration plants to protect turbine equipment.
During sudden load rejection, rapid closure prevents steam from extraction lines and heaters from flowing back into the turbine, avoiding the blade and turbo-generator damage described on the original page.
The valve also protects against water entering the turbine through extraction lines when heater leakage creates water-hammer conditions.
- Quick Closing: Responds to sudden load-rejection conditions.
- Steam Backflow Prevention: Protects the turbine from extraction-line reverse flow.
- Water-Hammer Protection: Addresses heater-leakage water entry.
- Power and Cogeneration: Listed for extraction systems in both plant types.
Related Product Selection Guides
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