With the advantages of triple offset butterfly valves, Hobbs Valve engineered a solution that would utilises a three-piece valve assembly manufactured within a one piece cast body, saving considerably on weight when compared to alternative double block and bleed solutions.

A primary advantage of the TVT Double Block & Bleed range is that it has an increased cavity between both discs, reducing the possibility of a breach during full pressurisation and further enhancing safety performance in critical applications. 


  • Double isolation in a single cast
  • Guaranteed zero leakage
  • Safety critical
  • Fully rated, bi-directional & zero leakage
  • Dual disc design
  • Face to face dimensions – bespoke available on request
  • Bleed valve accommodated integrally in the cast
  • Fewer flanged faces resulting in the potential of lower
    fugitive emissions



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