Description
Offset Disc Butterfly Valve - High-Performance & Double/Triple Offset Flow Control
FlowBiz Exports is a leading manufacturer and global exporter of high-performance Offset Disc Butterfly Valves (including Double Offset and Triple Offset configurations). Engineered with eccentric shaft and disc positioning, these valves eliminate seat friction during operation, delivering exceptional cycle life, bubble-tight sealing, and reliable throttling performance in high-pressure and critical temperature services.
Key Features & Operational Superiority
- Frictionless Camming Action: Eccentric offset design lifts the disc off the seat immediately upon rotation, drastically reducing seat wear and operating torque.
- Bubble-Tight Bi-Directional Sealing: Advanced seat geometry ensures zero-leakage performance under extreme differential pressures.
- Fire-Safe & Metal Seated Options: Available with metal-to-metal seating designed to maintain fire-safe integrity in volatile hydrocarbon environments.
- Extended Service Life: Minimal wear on sealing surfaces results in lower maintenance costs and longer operational uptime.
Technical Specifications & Material Grades
Parameter | Specification Details |
Size Range | DN50 to DN1200 (2” to 48”) |
Pressure Rating | Class 150, Class 300, Class 600 / PN10 to PN100 |
Temperature Range | -50°C to +450°C (Cryogenic to High-Temperature options available) |
Body Materials | Cast Steel (A216 WCB), Stainless Steel (CF8, CF8M, CF3M), Duplex & Super Duplex Steel |
Disc Materials | SS316, SS304, Duplex Stainless Steel, Monel, Inconel |
Seat Types | Fire-Safe PTFE / RTFE, Metal-to-Metal (Stellite hardfaced), Inconel laminated |
Body Style | Wafer, Lug, and Double Flanged Types |
International Standards & Quality Inspection
All FlowBiz offset disc butterfly valves are manufactured in strict compliance with API 609 (Category B), ASME B16.34, ISO 5752, and BS EN 593 standards. Every unit undergoes rigorous hydrostatic, high-pressure pneumatic, and fire-safe testing per API 598 and API 607 standards before dispatch.
Industrial Applications
Our offset disc butterfly valves are deployed in severe-service industrial applications, including:
- Hydrocarbon Processing & Oil Refineries
- Steam & High-Pressure Utility Lines
- Chemical & Petrochemical Plants
- Offshore Platforms & Marine FPSOs
- Power Generation & Thermal Energy Systems
Why Choose FlowBiz Exports?
At FlowBiz Exports, over three decades of manufacturing mastery back every industrial valve we produce. We combine state-of-the-art infrastructure, certified testing procedures (Hydrostatic, Radiography, PMI), and rigorous quality control to deliver long-lasting performance. With global export compliance, custom engineering solutions, direct factory pricing, and committed technical support, FlowBiz is the trusted partner of choice for leading engineering contractors and industrial buyers worldwide.