Description
Triple Offset Butterfly Valve - Metal-Seated Zero Leakage Flow Isolation
FlowBiz Exports is a premier manufacturer and exporter of heavy-duty Triple Offset Butterfly Valves (TOBV) engineered for severe service applications. Featuring a non-rubbing, triple eccentric design combined with a laminated metal seal, these valves deliver bidirectional, bubble-tight zero-leakage performance under extreme temperatures, high pressure differentials, and aggressive media.
Key Features & Operational Superiority
- Triple Eccentric Geometry: Eliminates rubbing friction between the disc seal and body seat during rotation, ensuring ultra-low operating torque and extended seat life.
- Metal-to-Metal Zero Leakage Sealing: Engineered with a field-replaceable laminated metal/graphite disc seal that meets API 598 and ISO 5208 Rate A zero-leakage standards.
- Fire-Safe Design: Inherently fire-safe all-metal construction maintains structural integrity during high-temperature emergencies.
- Anti-Blowout Stem: Heavy-duty stem retention system prevents shaft blowout under severe pipeline pressure spikes.
Technical Specifications & Material Grades
Parameter | Specification Details |
Size Range | DN80 to DN1800 (3” to 72”) |
Pressure Rating | Class 150, Class 300, Class 600, Class 900 / PN10 to PN100 |
Temperature Range | -196°C to +600°C (Cryogenic to High-Temperature Service) |
Body Materials | Carbon Steel (A216 WCB/LCC), Stainless Steel (CF8M, CF3M), Duplex & Super Duplex, Alloy 20, Hastelloy |
Disc Materials | SS316 / SS316L, Duplex Stainless Steel, Monel, Inconel |
Seat / Seal Ring | Stainless Steel + Flexible Graphite Laminate, Stellite 6 Hardfaced Body Seat |
Body Style | Wafer, Lug, Double Flanged, and Butt-Weld Ends |
International Standards & Quality Inspection
All FlowBiz triple offset butterfly valves are designed and manufactured in full compliance with API 609 (Category B), ASME B16.34, EN 593, and ISO 17292. Every valve passes mandatory hydrostatic body testing, high-pressure gas testing, and fire-safe certification as per API 607 / ISO 10497 standards prior to shipment.
Industrial Applications
Our triple offset butterfly valves are specifically built for critical process operations, including:
- High-Temperature Steam & Power Generation
- LNG, Cryogenic Services & Gas Processing Plants
- Oil Refineries & Hydrocarbon Transport Lines
- Chemical, Petrochemical & Off-Shore Oil Platforms
- Desalination & High-Pressure Water Distribution
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.