Compact quarter-turn butterfly valve clamped tightly between companion flanges. Engineered for low torque operation, reliable bi-directional shutoff, and easy actuation integration across cooling water headers, chemical skids, and desalination plants.
Manufactured strictly to international engineering codes with 100% factory pressure testing, full EN 10204 3.1 / 3.2 material traceability, and accredited third-party witness support.
| Engineering Parameter | Applicable Codes, Standards & Design Criteria |
|---|---|
| Design Standard | API 609, ASME B16.34, ISO 5752 |
| Body Materials | Ductile Iron, WCB, CF8M, Duplex 2205 |
| Testing Standard | API 598 / ISO 5208 Rate A Zero Leakage |
TSV manufactures an engineered lineup of Wafer Butterfly Valve configurations for global oil & gas transmission pipelines, refinery manifolds, power plants, and severe industrial processes. Each unit undergoes 100% hydrostatic and pneumatic factory acceptance testing before dispatch.
Molded replaceable EPDM/NBR cartridge liner completely isolates line fluid from the metal body, ideal for HVAC, waterworks, and utility cooling loops.
Double offset camming geometry lifts disc off the PTFE or RTJ metal seat during opening, extending seal longevity across hundreds of thousands of cycles.
Double eccentric design with primary PTFE seat and backup 316SS metal seat, providing certified bubble-tight shutoff before, during, and after hydrocarbon fire exposure.
Short face-to-face wafer architecture minimizes installation weight and piping footprint, while universal centering lugs guarantee precise concentric flange bolting.
Every valve is pressure-tested per API 598 / API 6D Rate A with zero allowable bubble leakage prior to factory crating.
Certified Mill Test Reports (MTR) with optical emission spectrometer chemical composition and mechanical impact values.
Audited and approved on the global master vendor list (#24) of Occidental Petroleum for severe upstream duties.
1:1 aligned with TSV factory catalog. Severe-service metal-seated and resilient-seated quarter-turn isolation valves.
Bi-directional zero-leakage metal-to-metal seating for high-temperature steam and hydrocarbon lines.
API 609 Category B View Triple Offset Butterfly Valve →Heavy double-flanged body suitable for dead-end service and large diameter cooling water pipelines.
Double Flanged View Double Flanged Butterfly Valve →Compact lightweight body designed for tight installation envelopes between pipeline flanges.
Current Series View Page Top ↑Threaded lug holes allowing downstream piping removal while maintaining upstream pressure boundary.
Full Lugged View Lugged Body Butterfly Valve →EPDM / NBR / PTFE lined body for bubble-tight isolation in water treatment and HVAC systems.
Resilient Lined View Resilient Seated Butterfly Valve →Connect directly with our Yongjia engineering technical sales team. Receive technical engineering datasheets, CAD dimensional GA drawings, and quotation within 24 hours.