Double-isolation valve improves safety during maintenance work

12 August, 2008

This double-block and bleed valve from Spirax Sarco fits into the space left by a single isolation valve.

Steam and fluid systems can be upgraded quickly and easily to safer and more cost-effective maintenance procedures with the space-saving Spirax SafeBloc double-block and bleed (DBB3) valve. The design of new plant layouts is also simplified. The design incorporates two isolation valves and a bleed port in a compact assembly and can be installed in the space left by an existing single isolation valve. Spirax claims that no other commercially available product provided double-clock and bleed isolation in such an integrated, compact unit. This arrangement requires only a third of the pipeline length compared with conventional fabricated arrangements. These valves have ANSI or EN standard face-to-face dimensions, so they can replace an existing single isolation valve without pipework modifications. Double-block and bleed enables a section of plant to be safely isolated for maintenance without having to shut down the entire system.

For more information on this story, click here:Aug, 08 174

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Double-isolation valve improves safety during maintenance work

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