Full-Lugged Industrial Butterfly Valve
Equipped with threaded bolt holes extending along the entire body perimeter. Enables single-flange bolting for dead-end terminal pipe service, allowing maintenance personnel to disconnect downstream piping without draining the upstream pressurized header.
Design Criteria & Manufacturing Specifications
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 Category A & B, ASME B16.34 |
| Dead-End Duty | Rated for full differential pressure dead-end isolation per API 609 |
Lug Butterfly Valve Standard & Engineered Models
TSV manufactures an engineered lineup of Lug 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.
Full Lug Bi-Directional Dead-End Service Butterfly Valve
Drilled and tapped lug lugs allow downstream pipe removal under full line working pressure without inducing external joint leakage.
Ductile Iron Resilient Seated Lug Butterfly Valve
Polished stainless disc driven by double-D pinless stem geometry eliminates leak paths through the disc hub in municipal and industrial plants.
Stainless Steel High-Performance Lug Butterfly Valve
Heavy forged/cast stainless steel lug body with reinforced polymer seat rings for aggressive solvent, alcohol, and pharmaceutical bulk lines.
Full Lug Threaded Dead-End Isolation & Downstream Piping Maintenance
Individually tapped lug bodies allow downstream line removal while maintaining full upstream line working pressure.
100% Hydrostatic Acceptance
Every valve is pressure-tested per API 598 / API 6D Rate A with zero allowable bubble leakage prior to factory crating.
EN 10204 3.1 Certified
Certified Mill Test Reports (MTR) with optical emission spectrometer chemical composition and mechanical impact values.
Global OXY Approved Supplier
Audited and approved on the global master vendor list (#24) of Occidental Petroleum for severe upstream duties.
Explore All 5 Butterfly Valve Sub-Categories
1:1 aligned with TSV factory catalog. Severe-service metal-seated and resilient-seated quarter-turn isolation valves.
Triple Offset Butterfly Valve
Bi-directional zero-leakage metal-to-metal seating for high-temperature steam and hydrocarbon lines.
API 609 Category B View Triple Offset Butterfly Valve →Double Flanged Butterfly Valve
Heavy double-flanged body suitable for dead-end service and large diameter cooling water pipelines.
Double Flanged View Double Flanged Butterfly Valve →Wafer Type Butterfly Valve
Compact lightweight body designed for tight installation envelopes between pipeline flanges.
Compact Wafer View Wafer Type Butterfly Valve →Lugged Body Butterfly Valve
Threaded lug holes allowing downstream piping removal while maintaining upstream pressure boundary.
Current Series View Page Top ↑Resilient Seated Butterfly Valve
EPDM / NBR / PTFE lined body for bubble-tight isolation in water treatment and HVAC systems.
Resilient Lined View Resilient Seated Butterfly Valve →Request Engineering Submittal & Commercial Quotation
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