Oliver Twinsafe's established range of Double Block and Bleed (DBB) large bore pipeline ball valves will increase operator safety with true double isolation, whilst saving space and weight, reducing potential leak paths and minimising maintenance requirements, on both new and existing pipelines.
Oliver Twinsafe offer a range of valves in either full or reduced bore sizes, in ASME pressure Classes from 150 to 2500 and API 6A ratings up to 10,000 psi. Both soft and metal seated options are available.
These DBB valves are designed to offer one valve solution, available in most sizes to fit in the same space as a single ball valve (ASME B16.10 overall length) or with the shortest possible face to face dimension, giving true double isolation for maximum safety and reducing process problems due to valve leakage. The compact design saves weight, space and reduces costly installation charges.
All valves are designed and tested within the requirements of API 6D, ASME B16.34, API 598 and ASME VIII. Material certification to BS EN 10204 3.1 or 3.2 and unique serial numbering system ensures full traceability on all our valves.
Our compact style Double Block & Bleed Valve is designed with an overall length in accordance with ASME B16:10, or shortest possible face to...Select
Our Flanged Style Double Block & Bleed Valves are designed with a bolted 3 piece body and conventional through bolting flanged connections. ...Select
Our compact style Double Block & Bleed Valves are designed with an overall length in accordance with ASME B16:10. The single piece body desi...Select
Our Flanged Style Double Block & Bleed Valves are available in both two and three piece body designs and contain three valves in one single ...Select
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