Valbart Double Block and Bleed Valves- DBBV

The design of the Valbart Double Block and Bleed Valve, DBBV, is available in side-entry with either a bolted or welded body, for onshore, offshore or subsea configurations.

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  • Brands:
  • Applications:
    Power Generation, Chemical Processing, Gas Production, LNG, Offshore, Oil Production, Petrochemical Processing, Petroleum Production and Refining
  • Industries:
    Gas Treatment, LNG, Oil and Gas, Power Generation
  • Standards:
    ASME (ANSI), ISO, ISO 9001:2000

The "Double Block and Bleed Isolation Philosophy," used in Valbart's Double Block and Bleed Valve, DBBV, requires two in-line isolation valves and a bleed valve. These elements are used to drain or vent trapped fluid between the two closure elements in order to safely isolate the downstream pipe. This feature is achieved with one single valve containing a bleed port between the two valves. 


  • Space and weight saving features of the trunnion-mounted ball valve.
  • Cost savings for the product and installation.
  • Minimized leak paths.
  • Increased structural integrity.
  • Increased reliability of the system. 
  • Ease and cost savings of automation- pneumatic, hydraulic or electric actuation configurations.

Optional Features

  • Metal seated valves
  • Double piston effect seats
  • Extended vent fittings
  • Numerous body, trim, seal area overlay and seal materials available

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Valbart Double Block and Bleed (DBB) Valves Brochure

Valbart Double Block and Bleed (DBB) Valves brochure

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