C92 Cryogenic Trunnion Mounted Ball Valve

Special mechanical design and construction
  • Solid one-piece high torque durable stem.
  • Tight stem-to-ball directional engagement, ensures relief hole alignment.
  • Strict materials and manufacturing tolerances control.
Efficient heat transfer
  • A narrow space between the extension ID and the stem OD allows the stem seal to remain at an ambient temperature.
No-Trap Cavity
  • Relief hole on the upstream sphere of the ball to prevent pressure buildup in the cavity.
  • Single-side or self-pressure-relief sealing for bidirectional full pressure service.
Flexible bonnet installation angle
  • Up to 45° from the vertical axis for the 12” bonnet (per BS6364 guidelines).
  • Up to 15° from the vertical axis for the 6” bonnet (not BS6364 compliant).
Flow direction indicators (for valves with preferred flow direction)
  • Highly visible arrows on body and bonnet top.
  • “T” mark on the stem, showing relief hole direction.
  • Double isolation / double block and bleed designs available upon request
  • Clean assembly and packing


Size Range: 2″ – 12″ (DN50 – DN300)

Pressure Range: Class 300

Design Features

  • 3-piece robust, forged valve
  • Double block & bleed
  • Blowout-proof robust stem design
  • Bi-directional as standard
  • API 6D certified (API monogram #6D-1278)
  • Fire safe designed to API 6FA, API 607, ISO 10497
  • Comply with NACE MR0175/ISO 15156
  • Corrosion resistant low friction bearings
  • Double Piston Effect or Single Piston Effect seat design
  • Mixed SPE and DPE seats design also available
  • Integral top-works direct mounting pad to ISO 5211
  • 6” and larger valves are equipped with lifting lugs
  • 8” and larger valves can be equipped with vent and drain valves (Optional)
  • Antistatic grounding between ball, stem & body