Double Block and Bleed Valve

Background

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. 

Features

• 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

Data Sheets

Hobbs DBB Product Brochure