Ethylene Transfer Line and Decoking Valves
Designed as critical components for connecting and disconnecting the ethylene cracking furnace from the main pipeline, these valves ensure reliable performance in high-temperature, low-pressure environments. With exceptional anti-coking properties, they enhance system safety and operational reliability, reducing risks associated with ethylene production. The innovative, load-resistant valve body and triple-seal design further optimize safety and durability. Available in diameters up to 48 inches, with over 300 units already delivered.
Product Series
- Double-disc valve
Certifications
- Environmental Engineering Design Certification
- Manufacturing License for Measuring Instruments
- Pressure Vessel Design Permit
- Pressure Vessel Manufacturing Permit
- Special Equipment Manufacturing Permit
- ISO9001 Quality Management System Certification
- ASME Boiler and Pressure Vessel Code (BPVC) Certificate
Technical Features
Three-Position Seal
OFF Position: Floating seal with no gap between internal parts, fully isolating the flow path from the valve cavity.
Middle Position: Direct piping with no pressure loss, ensuring optimal flow and system efficiency.
ON Position: Enhanced anti-coking performance, maintaining uninterrupted operation.
Optimized Design for Durability
Split Seat & Integrated Stem: Simplified manufacturing and maintenance processes for increased efficiency.
Reinforced Valve Body: Improved load resistance and sealing performance through a higher rigidity design.
Disc Spring Package: Three-wave design and disc springs ensure improved sealing under varying conditions.
Advanced Sealing & Anti-Coking Technology
Bidirectional Sealing: Offers additional protection against leakage in both directions.
Adjustable Deflector Hole: Prevents seal coking, ensuring smooth operation over time.
Cam Linkage Mechanism: Minimizes linkage failure risks, improving reliability during valve operation.
Applications
- Zhongyuan Ethylene – 20″ + 6″ linkage valve
- Wuhan Ethylene – 32″ pneumatic valve
- Huizhou Ethylene – 36″, 24″ valves
- Wanhua Chemical Group – 24″ decoking valve
