The API6D top-entry ball valve boasts a high-pressure manufacturing process and a wide range of applications, encompassing water, petrochemicals, electric power, and other sectors. Depending on the nominal diameter, sizes below DN100 utilize a double-bevel design, with springs providing a self-compensating seal to ensure tightness at low and medium pressures. Sizes above DN100 utilize a fixed-ball design. This valve features a double block-and-bleed (DBB) function, fire and static protection, and bidirectional sealing. Retractable seat technology further enhances maintenance ease. Furthermore, the top-entry design allows for easy bonnet removal for repairs and component replacement, while the bottom-entry stem's inverted seal ensures a reliable seal at the packing.
Standard
Design and manufacture standard: ASME B16.34, API608, API6D and BS5351
End flange: ASME B16.5
Butt Weld: ASME B16.25
Inspection and Testing: API598
Face to face : ASME16.10 and DIN3202
Fire Safe Test : API 607/API 6FA
Design Features
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 energized seats.
Anti-blowout stem design.
Suitable for above ground or below ground installation.
Soft, metal or composite material seated.
Light weight cast body.
Class V shut-off.
Graphite stem packing.
Forged design.
No trim in steam flow.
Tapered profile to minimise flow induced vibration.
Variable spray nozzle.