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Oliver Double Block & Bleed Valves

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Oliver Valves pioneered the Double Block and Bleed (DBB) concept in the early 1980's, which has very much now become a standard world wide.

Each Double Block and Bleed Valve manufactured by them has a unique number recording its factory history.

They offer innovative Double Block and Bleed solutions on a variety of our valves, including Forged Double Block and Bleed's, Instrument Double Block and Bleed's, Injection & Sampling Double Block and Bleed's and Primary Isolation Double Block and Bleed's.


  • Pressure instrument take-off points.
  • Sampling systems, where a pipeline probe is integral with our valve.
  • Chemical injection systems, where a check valve is part of our valve assembly.
  • Drains for tanks and pipes, where space is restricted.
  • High pressure firesafe diverter valves.
  • Hydraulic power unit systems.
  • Reduced vibrational stresses.
  • Cost savings with exotic material designs are huge.
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