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DE Series DBB Valve

1 Piece design Flange x Screw

Double/Single Block and Bleed Top Hat valve utilising soft seated ball valves and a metal seated needle valve with bonnet to body connection for superior, bubble tight sealing capabilities atboth extreme pressures and temperatures.

The valve offers integral studding options for use in areas where a stud and nut are hard to fit. 

Alco DE-series DBB Valve Flange x screw.

*Other options can be supplied upon request

Bore Sizes:


10, 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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