Double Block & Bleed Valve

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


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.