Extraction Valve
XURI is an extraction valve manufacturer specializing in steam turbine extraction systems where rapid closing performance and high reliability are required.
Our extraction check valves (H664Y Series) serve as a tier-one supplier for 1000MW ultra-supercritical steam turbines, executing full closure in under 0.5 seconds to protect turbine integrity from reverse steam flow.
Engineering Advantages:
- Fast closing response under 0.5 seconds
- Reliable reverse flow protection
- High-pressure steam capability
- Optimized internal flow design
- Suitable for critical turbine protection systems
Typical Applications
- Turbine extraction check valves
- Feedwater heater steam supply
- Process steam extraction lines
- District heating take-off points
- Regenerative cycle extraction control
Technical Specifications
| Design Standard | ASME B16.34 |
| Pressure Class | Class 600 - Class 2500 |
| Size Range | DN50 - DN600 (2" - 24") |
| Body Materials | WCB, WC6, WC9, F91, F92 |
| Series | H664Y |
| Closing Time | Less than 0.5 seconds |
Standards & Certifications
- ASME B16.34 - Design standard
- API 598 - Testing standard
- ISO 9001 - Quality management
Why Choose XURI
Manufacturing Capability
XURI operates professional valve manufacturing facilities with in-house casting capability and an annual production capacity of 6,000 tons.
Quality Assurance
Complete inspection process including PMI, NDT, hydrostatic testing, and dimensional inspection ensures product reliability.
Engineering Experience
Supporting severe service applications including power generation, oil and gas, chemical, and energy projects worldwide.
Global Supply
Products supplied to EPC contractors, distributors, and industrial projects across 30+ countries, with factory-direct pricing and on-time delivery.
FAQ
What is an extraction valve used for?
Extraction valves protect steam turbines by preventing reverse steam flow from extraction lines, with closing times under 0.5 seconds.
What is the closing speed of XURI extraction valves?
XURI H664Y series extraction check valves achieve full closure in under 0.5 seconds for critical turbine protection.