Premium Double Eccentric Lug-Type Butterfly Valves
High-Performance Double Eccentric Butterfly Valves | Zero Leakage Design
High-Performance Double Eccentric Butterfly Valves | Zero Leakage Design
High-Performance Double Eccentric Butterfly Valves | Zero Leakage Design
High-Performance Double Eccentric Butterfly Valves | Zero Leakage Design
Premium Double Eccentric Lug-Type Butterfly Valves
Industry-leading double eccentric butterfly valves with fire-safe API 607 certification. Bidirectional sealing, -196°C to 815°C operation. NSF-compliant for chemical/steam applications.
Engineered for Extreme Conditions | API 609 & NACE MR0103 Certified
Core Technology
Our dual-offset design combines two precision eccentricities:
- Radial Eccentricity: Spindle offset from sealing surface center
- Axial Eccentricity: Spindle offset from pipeline centerline
This patented geometry creates cam-actuated sealing that eliminates seat friction during operation. Benefits include:
✅ 90% torque reduction vs conventional valves
✅ Zero-leakage performance (API 598 certified)
✅ 10-year service life in abrasive media
Key Specifications
| Parameter | Specification |
|---|---|
| Size Range | 2″-128″ (50-3200mm) |
| Pressure Class | 150# to 300# (ASME B16.34) |
| Temp Range | -196°C to +815°C (-320°F to +1500°F) |
| Drives | Manual/Gear/Pneumatic/Electric (ISO 5211) |
Industry-Leading Applications
✔ Fire Protection Systems (API 607/ISO 10497 certified)
✔ LNG Cryogenic Transfer (-196°C low-temp design)
✔ Chemical Processing (NACE MR0103 compliant)
✔ Power Generation (1500°F steam-rated seats)
✔ Oxygen Service (ASTM G93 cleaning protocol)
Proprietary Seal System
- Self-Compensating Lip Seal: Automatically adjusts for thermal/pressure changes
- Quick-Change Seat Cartridge: Replace seals in 15 mins without full disassembly
- Bidirectional Sealing: Maintains bubble-tight closure at 300# pressure
Safety Features
🔒 Blowout-proof stem retention
🔒 Anti-static EN 13789 compliance
🔒 X-ray inspected welds (ASME Section IX)
Global Certifications[Badge icons] API 609 • ISO 5211 • EN 1092 • NACE MR0103
Optimized for Your Industry
| Medium | Recommended Configuration |
|---|---|
| Chlorine | Monel-seated RPTFE seals |
| Sulfuric Acid | Hastelloy C276 disc coating |
| Abrasive Slurries | Tungsten carbide edge treatment |
| Oxygen | ASTM G93 degreased assembly |
Why Choose Us?
- 30% Faster Delivery: Regional warehouses in USA/EU/Middle East
- Custom Engineering: ASME/NACE-compliant modifications
- Lifetime Technical Support: On-call fluid system experts
Localization Keywords (Priority Order):
- High performance butterfly valves
- API 609 dual eccentric valves
- Fire-safe lug type valves
- Cryogenic butterfly valves
- Zero leakage industrial valves
- NACE compliant chemical valves
- High temperature steam valves
- Oxygen service butterfly valves
- North America: Emphasize API/ASME compliance
- Europe: Highlight EN/ISO certifications
- Middle East: Feature fire-safe LNG applications
- Asia-Pacific: Focus on chemical/pharma compliance
- CTA Section
Need a Valve That Outperforms Competitors?
☑️ Custom configurations for extreme media
☑️ 24/7 technical support
☑️ 2-year warranty with lifetime service📞 Contact Our Engineers Now 📧 sales@chinagangye.com for a Free Application Analysis!
