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OB Series DBB Valve

3 Piece design Flange x screw

Double block and bleed bar stock body cartridge valve manifold with bolt on flanges, utilising both soft seat
and metal to metal seat, with bonnet to body connection for superior, bubble tight sealing capabilities at both
high pressures and temperatures.

The BVO type valve offers a Ball, Bolted Needle, Ball configuration. Flanged connections and a threaded
female vent port.

Alco OB-series DBB Valve Flange x screw

*Other options can be supplied upon request

Bore Sizes:


10 mm up to 250 mm bore

Pressure class:

ASME B16.5 class 150# to 2500#

API 6A 10.000k


- ASTM A182 F316 Stainless Steel

- ASTM A182 F51/55 Duplex &
  Super Duplex

- ASTM B564 UNS N06625
  Inconel 625

- Others



- Several options available such

  as handle locking, anti 

  tamper head unit, handle & stem

  extensions for insulation purpose



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