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Y Series DBB Valve

3 Piece design Flange x Flange

Double block and bleed 3 piece flange by flange valve manifold utilising a soft seat design, with flange to body connection for superior, bubble tight sealing capabilities at both high pressures and temperatures.


This type of valve offers a Ball, Ball, Ball configuration. Interchangeable flange options make this valve
highly customisable for applications that include changes in piping configurations.

Alco Y-series DBB Valve Flange x Flange

*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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