Cast Steel Triple Offset Butterfly Valve 300LBS - API609, Flanged & BW End
Tengs Valve supplies high-quality ANSI Class 300LB Cast Steel Triple Offset Butterfly Valves with welding ends and flange ends. Manufactured to API609 standard, these valves feature tri-eccentric, hard seal, high-performance design. Available in carbon steel and stainless steel (A216 WCB, A351 CF8, CF8M). Operated by lever, worm gear, or pneumatic actuator. Sizes range from 2″ to 48″ with pressure rating 300LBS / Class 300LB. Ideal for oil & gas, chemical, power generation, and water treatment applications requiring zero leakage and high performance.
Specifications for Cast Steel Flanged & BW End Triple Offset Butterfly Valve 300LBS
• Design Standard: API 609
• Inspection and Test: API 598
• Pressure Rating: 300LBS / Class 300LB
• Size: 2″ to 48″ (DN50 to DN1200)
• Body Materials: Cast Steel - Carbon Steel and Stainless Steel
• Disc: Carbon Steel (WCB, LCB, LCC), Stainless Steel (CF8, CF8M)
• Stem Material: Stainless Steel
• Actuator: Lever, Worm Gear, Pneumatic Actuator etc.
Triple Offset 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 | A182-F6a / F304 / F316 / F51 | F304 / F316 / F51 | F316 / F51 |
| Bolts/Nuts | A193 B7 / A194 2H | A193 B8 / A194 8 | A193 B8M / A194 8M |
| Packing | Graphite | Graphite | Graphite |
Reference: API609. Materials may vary by model and pressure rating. Contact us for confirmed material certificate.
Flanged & BW Triple Offset Butterfly Valve Dimensions for Class 300LBS
Reference: API609. Dimensions may vary by manufacturer. Contact us for confirmed drawing and quotation.
Industrial Butterfly Valve Dimension Details
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
