Subsea Ball Valves Double Block & Bleed

Using the same technology from our Single Isolation Ball Valves, we can supply units with double block or double block & bleed functionality. All units can be fitted to a single valve body, providing a compact, lower weight solution. Available in sizes from 3/8” up to 16”, and pressures up to 15,000psi

Our subsea valves are suitable in water depths to 3.000 m (10.000 ft) and maintain an average service life of 25 years while offering the utmost level of reliability and safety under high-pressure conditions-even in harsh service with the presence of sand or solid particles.

Valves are available in a wide range of materials and configurations to meet both customer requirements
and specific application needs.


  • Valve design : As per API 6DSS standard and customer requirements
  • Temperature range : -150 so to 428°F (-101 to 220°C)
  • Face-to-face : As per API 60 standard
  • End connections : RF, RTJ as per B16.5 & B16.47 BW, Butt weid as per B16.25 Hub connection

Product Features

  • Metal or soft seated options available
  • Spring energised seats
  • Floating and Trunnion options available
  • Dual Stem seal arrangement
  • Anti-blow-out Stem
  • Suitable for manual, ROV or actuator operation

Design Benefits

  • Compact, lighter solution for dual isolation
  • Bi-directional sealing
  • Compact design
  • No lubrication or maintenance required
  • Easily configured to suit various end connections
  • PEEK/PTFE soft seals to suit a wide range of process media
  • Rate A (zero) leakage options available

Design features

  • Double block and bleed design (DBB).
  • Anti-statie device.
  • Anti-blowout stem.
  • Soft-seated or metal-seated designs with hardfacingon ball and seats.
  • Seat configurations available: self-relieving, double piston, and combination seats.
  • O-ring/lip seal configuration.
  • Body sealing designed in double O-ring configuration for sea water protection.
  • CRA overlay on all dynamic sealing areas or on all wetted parts available.


  • Manual: Gear with ROV receptacle or handwheel.
  • Actuated: Hydraulic with or without ROV receptacle/ handwheel override.
  • Baric compensator for operators.

Testing & certification

  • Compliance with API 6DSS inspection and testing.
  • SIL 3 Certification as per IEC 61 508.
  • PED 2014/68/UE.
  • Hyperbaric validation testing as per API 6DSS (available on request).
  • Cap test as per API 6D5S (available on request).

Get In Touch

Drop Us A Message

    Our Contact Details

    • MV Nederland BV / Maverick Valves Manufacturing HQ BV

      Kalundborg 10 5026 SE Tilburg The Netherlands
    • +31 (0) 13 303 3600