Soft Seal Resilient Butterfly Valve
High-flow concentric butterfly valve featuring vulcanized or replaceable elastomeric boot liners (EPDM, NBR, Viton, PTFE). Completely isolates the valve body from the line fluid, providing corrosion immunity and zero-leakage shutoff in municipal, HVAC, and industrial utility systems.
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, EN 593, ISO 10631 |
| Liner Construction | Replaceable or vulcanized phenolic-backed cartridge liner |
Soft Seal Butterfly Valve Standard & Engineered Models
TSV manufactures an engineered lineup of Soft Seal 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.
Resilient Concentric Wafer Soft Seal Butterfly Valve
Precision molded elastic rubber liner with tongue-and-groove body lock providing zero-bubble bi-directional isolation up to 16 bar.
Food Grade EPDM / PTFE Lined Sanitary Soft Seal Butterfly Valve
Mirror-polished Ra < 0.4 um stainless disc and FDA-certified virgin white PTFE liner for food processing, brewery, and ultra-pure water loops.
Double Flanged Resilient Seated Butterfly Valve
Heavy-duty double flanged body designed for water transmission mains, desalination pipelines, and pump isolation with vulcanized bonded elastomer liner.
Resilient Elastomer Lining Compression & Zero-Leakage Sealing Mechanics
Precision vulcanized or replaceable resilient elastomer liners provide bi-directional bubble-tight shutoff across aggressive chemical and industrial water systems.
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.
Full Lugged View Lugged Body Butterfly Valve →Resilient Seated Butterfly Valve
EPDM / NBR / PTFE lined body for bubble-tight isolation in water treatment and HVAC systems.
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