Double Block & Bleed Valve

A VALVE IS A DEVICE THAT REGULATES, DIRECTS OR CONTROLS THE FLOW OF A FLUID BY OPENING, CLOSING, OR PARTIALLY OBSTRUCTING VARIOUS PASSAGEWAYS.

Valves are technically valves fittings, but are usually discussed as a separate category.

Double Block & Bleed Valve

Blow-out proof design with internally loaded stem further Floating Ball design providing seat wear compensation and high integrity.

Double BlockBleed Vavle
Catalog

Spec.

  • Reduced potential leak paths with primary & secondary isolation in one valve.
  • Compact ball/OS&Y/needle valve assembly in one DBB.
  • Flange construction as per the requirements of ASME B16.5
  • NPT threaded connection to ANSI/ASME B1.20.1
  • Pressure rations as per ASME B16.34 Class 150 thru 2500.
  • Wetted components of Sour gas service valve are selected as per the requirements of NACE MR0175/ISO 15156
  • Fire tested as per BS 6755 part 2/API607
  • Anti-Static Device is set between the stem and ball.