Metal Seat Wafer Butterfly Valve - API609, Triple Offset, 2" to 60"
Tengs Valve supplies high-quality Metal Seat Wafer Butterfly Valves in cast steel high-performance industrial design. Manufactured to API 609 standard, these valves feature triple offset, tri-eccentric, hard seal, and metal-to-metal seated construction. Available in carbon steel, stainless steel, and special materials. Sizes range from 2″ to 60″ with pressure ratings from ANSI Class 150# to 600#. Operated by lever, worm gear, pneumatic, or electric drive. Ideal for oil & gas, chemical, power generation, and water treatment applications requiring zero leakage and high performance.
Specifications for Cast Steel Metal Seat Wafer Type Butterfly Valve
• Design Standard: API 609
• Inspection and Test: API 598
• Pressure Rating: 150LBS, 300LBS, 600LBS
• Size: 2″ to 60″ (DN50 to DN1500)
• Body Materials: Cast Carbon Steel (A216-WCB), Stainless Steel (A351-CF8, CF8M, A995-4A, 5A), Bronze (B148-C95800)
• Disc: Carbon Steel, Stainless Steel
• Stem Material: Stainless Steel
• Actuator: Lever, Worm Gear, Pneumatic Actuator, Electric Drive
Metal Seat Wafer Butterfly Valve Main Parts and Material List
| Part Name | WCB (Carbon Steel) | CF8 (Stainless Steel 304) | CF8M (Stainless Steel 316) |
|---|---|---|---|
| Body | A216 WCB | A351 CF8 | A351 CF8M |
| Disc | WCB / CF8 / CF8M | A351 CF8 | A351 CF8M |
| Sealing Ring | SS304 / SS316 + Graphite / PTFE / EPDM | SS304 / SS316 + Graphite / PTFE / EPDM | SS316 + Graphite / PTFE / EPDM |
| Stem | 420 / 304 / 316 | 304 / 316 | 316 |
| Bolts/Nuts | A193 B7 / A194 2H | A193 B8M / A194 8M | A193 B8M / A194 8M |
| Packing | Graphite | Graphite | Graphite |
Reference: API609. Materials may vary by model and pressure rating. Contact us for confirmed material certificate.
Related Butterfly Valve Pages
• Butterfly Valve - Butterfly Valve Series Overview
• Industrial Butterfly Valve - API609 Triple Offset Butterfly Valve
• Centerline Lug-Type Butterfly Valve - Carbon Steel, Bronze Disc, 150LB, Soft Seated
• Ductile Iron Lugged Wafer Butterfly Valve - Soft Seated, PN16
• Flanged Butterfly Valve 150LBS - API609 Triple Offset
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