Centerline Butterfly Valve | Bubble-Tight Sealing, Low Torque Design & API 609 Certified
ISO/API-certified centerline butterfly valve with zero-leakage O-ring sealing, bubble-tight performance & low operating torque. Customizable materials (WCB/CF8M), 12-month warranty. Download specs now!
High-Performance Centerline Butterfly Valve
Engineered for Zero Leakage, Extended Lifespan & Industrial Efficiency
Core Advantages
✅ Pinless Disc-Shaft Connection
Eliminate leakage risks with patented pin-free linkage. Features integrated O-ring sealing for optimal torque transmission and on-site replacement readiness.
✅ Bubble-Tight Sealing Guarantee
Precision-machined sealing surfaces achieve 100% concentric closure (EN 12266/API 598 standards). Streamlined disc design reduces pressure loss by 22% vs. conventional valves.
✅ Torque-Stable Skeletonless Seat
Swallowtail seat geometry evenly distributes deformation forces to valve body (not shaft), preventing torque spikes. Waterline end-face design enhances dynamic sealing performance.
✅ Double Semi-Shaft Technology
Maximize flow rates (Cv+18%) with dual semi-shaft construction. Rated for 100,000+ cycles (AWWA C504 compliant).
✅ Multi-Material Flexibility
Choose corrosion-resistant options:
Rubber Seals: EPDM/NBR (DN50-DN1200)
PTFE Seats: FDA-compliant grades available
Body Materials: WCB/LCB/CF8M/GGG40 (Class 150-PN16)
Certifications & Compliance
🔹 ISO 9001 | API 609 | CE | TS
🔹 Face-to-Face: API 609/EN 558
🔹 Actuation-Ready: Lever/Gear/Pneumatic/Electric
Technical Specifications Table (Mobile-Optimized)
Parameter Details
Sizes ½” to 48″ (DN50-DN1200)
Pressure Class 150LB / PN10-PN16
Body Materials WCB, CF8M, GGG40, LCB
Operational Temp -29°C to 200°C
Warranty 12 Months (Extendable)
Conversion CTAs
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