Advanced Quarter-Turn Isolation
Butterfly Valves
Triple-offset butterfly valves with friction-free sealing and bi-directional zero-leakage performance across wafer, lug and flanged configurations.
BS 5155API 607API 609ASME B16.34
Key features
Design highlights
- Triple Offset (TOV) design
- Friction-free sealing
- Bi-directional zero-leakage
- Wafer, lug and flanged end options
Operational advantages
Field performance
- Compact, lightweight construction
- Low operating torque, fast quarter-turn
- Cost-effective in large diameter applications
Technical specifications
Manufacturing range
| Type / Rating | MOC (Body/Seat/Trim) | Mfd Std | Size Range | End Conn. | Hydro Body | Hydro Seat | Air Test |
|---|---|---|---|---|---|---|---|
| Triple Offset — 900# | WCB, CF8M, Stellite | API 609 Cat. B | 3" — 24" | RTJ / BW | 3350 psig | 2450 psig | 7 kg/cm² |
| Triple Offset — 1500# | WCB, CF8M, Stellite | API 609 Cat. B | 3" — 12" | RTJ / BW | 5400 psig | 3960 psig | 7 kg/cm² |
Inspection & test: 100% in-house hydrostatic and pneumatic testing for body and seat per API 598. All valves undergo rigorous dimensional verification and material traceability protocols.
Bespoke engineering: non-standard sizes, grades and pressure classes are available on request. Custom material and body/end configurations produced on project basis.