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OB Series DBB Valve

1 Piece design Flange x Screw

Double block and bleed single flanged valve manifold utilising soft seated ball valves and a metal to metal
seated needle valve with bonnet to body connection for superior, bubble tight sealing capabilities at both high pressures and temperatures.

This valve type offers Ball, Bolted Needle, Ball configuration. The bolted needle offers a more robust option to the screwed type that provides longer service options.

Alco OB-series DBB Valve Flange x screw.

*Other options can be supplied upon request

Bore Sizes:


13 & 19mm 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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