Top Entry Ball Valves
Trunnion mounted with spring energised seats
Our trunnion mounted top entry high-performance ball valves are engineered to meet international standards, including API 6A, API 6D, ASME B16.34, ISO 17292, and other specifications upon request. The valve range includes soft, metal, or composite seats, configurable with single or double piston effect, providing an effective double block and bleed (DB&B) in both closed and, optionally, open positions.
- Soft, metal or composite material seated.
- Bi-directional tight shut-off.
- Double block & bleed.
- Fire safe and fire tested.
- Low operating torque design.
- Wide range of materials and sizes.
- Spring-loaded seats.
- Trunnion mounted with energised seats.
- Anti-blowout stem design.
- Suitable for above ground or below ground installation.
- Lightweight cast body design.
- Class V shut-off.
- Graphite stem packing for enhanced sealing.
- Forged design for durability and strength.
- No trim in steam flow, ensuring smooth operation.
- Tapered profile to minimise flow-induced vibration.
- Variable spray nozzle for flexible operation.
Product Specifications
End connections
- ANSI flanges:ANSI B16.5 for sizes up to 24”,ANSI B16.47 for sizes 26” and larger
- Compact flanges:NORSOK L-005
- Hub connectors:All major hub end designs available
- Welding ends:Butt welding to ANSI B16.25 or equivalent Socket welding to ASME B16.11 Pup pieces available on request
Sizes
- Nominal pipe size 1/2” through 60” (DN15 through DN1500
Pressure rating
- ANSI Class 150 through 2500 and 4500
- API 2000 through 15000
Temperature range
- From -196°C to 650°C (-321°F to 1200°F)
Seating configuration
Single or double piston effect for DB&B in both closed and open position
Seating material
- Soft, metal, or composite seats
Standards compliance
- API 6A, API 6D, ASME B16.34, ISO 17292, and other standards upon request
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