Double Block and Bleed Valves (Triple Offset Butterfly Type)

Double Block and Bleed (Triple Offset Butterfly Type)

Incorporating all the features and benefits of triple offset butterfly valve technology, the Double Block and Bleed (DBB) triple offset butterfly valve incorporates TWO obturators in a single body (housing).  This system reduces the number of leak points in the piping system by eliminating the need for a separate spool piece to be used in between the two valves.

DBB (Triple Offset Type) Section View

 

This type of DBB valve is available with a single gearbox unit with linkage between the two shafts.  It is typically designed for use on safety related applications requiring zero leakage guarantee.  Applications include tank storage, multi-port manifold isolation, hydrant isolation, high pressure ring main isolation, and other similar applications.

  • Standard Size Range: 3″ to 24″ (DN100 to DN600) (Large sizes upon request)
  • Standard Pressure Rating: ANSI #150 thru’ to ANSI #600 (Higher pressure ratings upon request)
  • Face-to-Face Dimension: to ANSI/ASME B16.10
  • Flange Connections: ANSI/ASME RF, RJ
  • Materials of Construction: Carbon Steel, Stainless Steel, and Duplex Stainless Steel (high alloy steels available on request)

For further information or to discuss your enquiry, please contact us by Email: Info@specialisedValveSolutions.com