API 6D Monogram Licensed: No. 6D-1832
CE PED 2014/68/EU Module H: NB 2195
Oxy Oman Approved AML: OMN-QAC-862-002
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API 609 SPECIFIEDLIGHTWEIGHT WAFERISO 5211 MOUNTINGBI-DIRECTIONAL SEAL

Wafer Industrial Butterfly Valve

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.

Size Range NPS 2" to 40" (DN 50 to 1000)
Pressure Class Class 150 / Class 300 (PN 10 to 50)
Offset Architecture Concentric / Double Eccentric
Seat Material Resilient EPDM/PTFE or Metal Laminated
TSV High Performance Wafer Pattern Butterfly Valve Metal-to-Metal Seat
MODEL FAMILY TSV-WBV-API609
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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, ASME B16.34, ISO 5752
Body Materials Ductile Iron, WCB, CF8M, Duplex 2205
Testing Standard API 598 / ISO 5208 Rate A Zero Leakage

Wafer Butterfly Valve Standard & Engineered Models

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.

Concentric Wafer Rubber-Lined Resilient Butterfly Valve
RUBBER LINED BUBBLE TIGHT

Concentric Wafer Rubber-Lined Resilient Butterfly Valve

Molded replaceable EPDM/NBR cartridge liner completely isolates line fluid from the metal body, ideal for HVAC, waterworks, and utility cooling loops.

Size RangeNPS 2" to 24" (DN 50 - 600)
Pressure Class150 PSI / 200 PSI (PN 10, 16)
Body MaterialDuctile Iron GGG40 / ASTM A216 WCB
Liner OptionsEPDM / NBR / Viton / Hypalon
Disc OptionsCF8M / Aluminum Bronze / Nickel Plated DI
High Performance Double Eccentric Wafer Butterfly Valve
DOUBLE OFFSET CLASS 150/300

High Performance Double Eccentric Wafer Butterfly Valve

Double offset camming geometry lifts disc off the PTFE or RTJ metal seat during opening, extending seal longevity across hundreds of thousands of cycles.

Size RangeNPS 2" to 30" (DN 50 - 750)
Pressure ClassASME Class 150, 300 (PN 20, 50)
Body MetallurgyASTM A216 WCB / ASTM A351 CF8M
Seat OptionsPTFE / RPTFE / Fire-Safe Inconel Backup
StandardsAPI 609 Cat B, ASME B16.34, MSS SP-68
Fire-Safe High Performance Wafer Butterfly Valve
FIRE-SAFE API 607 CLASS 150 / 300

Fire-Safe High Performance Wafer Butterfly Valve

Double eccentric design with primary PTFE seat and backup 316SS metal seat, providing certified bubble-tight shutoff before, during, and after hydrocarbon fire exposure.

Size Range:NPS 2" - 24" (DN 50 - 600)
Pressure Class:Class 150, 300 (PN 20, 50)
Seat Rating:PTFE + 316SS Inconel Fire-Safe

Compact Wafer Body Hydrodynamics & Centering Lug Geometry

Short face-to-face wafer architecture minimizes installation weight and piping footprint, while universal centering lugs guarantee precise concentric flange bolting.

01

100% Hydrostatic Acceptance

Every valve is pressure-tested per API 598 / API 6D Rate A with zero allowable bubble leakage prior to factory crating.

02

EN 10204 3.1 Certified

Certified Mill Test Reports (MTR) with optical emission spectrometer chemical composition and mechanical impact values.

03

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.

Current Series View Page Top ↑

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.

Resilient Lined View Resilient Seated Butterfly Valve →

Request Engineering Submittal & Commercial Quotation

Connect directly with our Yongjia engineering technical sales team. Receive technical engineering datasheets, CAD dimensional GA drawings, and quotation within 24 hours.

Strict Confidentiality · EN 10204 3.1 Traceability Guaranteed · Direct Yongjia Factory Response