Project Description

Standard features Trunnion 3 piece ball valves:

  • Size range: 2 to 64 in
  • ASME classes: 150 to 1500
  • Trunnion-mounted design
  • Double-barrier stem seals
  • Stem separate from the ball
  • Antiblowout stem design
  • Stem emergency grease fitting
  • Low-friction, metal-backed, self-lubricating PTFE sleeve bearings and thrust washers
  • Primary metal-to-metal seal and protected secondary O-ring seal
  • Double-piston-effect seat rings (double-sealing barrier in both directions)
  • Double block-and-bleed capability
  • Pressure-relief valve in the body cavity to prevent pressure lock
  • Sealant injection system for emergency seat sealing
  • Factory-positioned external stops
  • Integral stop in the adapter plate for a permanent reference to open and closed positions
  • Electroless nickel coating on pressure-controlling parts and stem
  • CE marking (PED)

Optional features

  • Triple-barrier stem seals
  • Self-relieving seat rings
  • Plastic polymer insert for seat sealing
  • PTFE spring-energized lip seals for seat and stem sealing
  • Metal-to-metal seat sealing
  • Stainless steel or INCONEL 625 overlay on sealing areas
  • Explosive-decompression-resistant seals (standard for Class 600 and higher)
  • Antistatic device
  • Fire safe in accordance with API Specification 607

Standards compliance

  • Fire safe in accordance with API 6FA, API 6D, API 607 and BS 6755 Part 2


Trunnion-mounted ball valve

  •  Sizes: 2 to 16 in [50 to 400 mm]
  • Pressure classes: 150 to 5,000
  •  Features and specifications
    • Provisions for secondary seat sealant or stem sealant injection
    • Designed in accordance with ANSI B16.34
    • Manufactured and tested in accordance with API 6D
    • Fire tested to API 607 and API 6FA
    • NACE MR0175/ISO 15156

Trunnion-mounted ball valve

  • Sizes: 2 to 16 in [50 to 400 mm]
  • Pressure classes: 150 to 2500
  • Features and specifications
    • Double block-and-bleed operation
    • API 6D, 598, 608, and 607 6th Ed. fire test
    • NACE MR0175/ISO 15156 for buried service
    • ASME B16.34 (valves, flange end)
  • Optional standards
    • CE/PED
    • ISO 5211 top works
    • CRN