Product Details Supplier Info More products

The Spirax Safebloc Double Block and Bleed (DBB3) Valve allows steam and fluid systems to be upgraded quickly and easily to safer and more cost-effective maintenance procedures.

It also simplifies the design of new plant layouts.

This design incorporates two isolation valves and a bleed port in a compact assembly, making it easy to install into the space left by an existing single-isolation valve.

No other commercially available product provides double block and bleed isolation in such an integrated, compact unit.

The Spirax Safebloc has ANSI or EN standard face-to-face dimensions, enabling it to replace an installed standard single isolation valve, without pipework modifications.

A retrofit can be undertaken quickly, eliminating the time-consuming and expensive pipe cutting, welding and pressure testing needed to engineer a conventional double block and bleed arrangement from separate isolation and bleed valves.

The Spirax Safebloc takes up only a third of the pipeline length compared with conventional fabricated arrangements.

This enables double block and bleed to be installed in spaces where it may otherwise be impossible.

Spirax Safebloc uses proven technology from the Spirax Sarco range of bellows sealed globe valves, which offer zero gland leakage, while ensuring tight shutoff conforming to DIN 3230 BO1 and ISO 5208 Rate A specifications.

The unit’s internal flow-path offers the same minimal pressure drop as conventional arrangements.

Double block and bleed enables a section of plant to be safely isolated for maintenance without having to shut down the entire system.

Double isolation is achieved by closing both isolation valves, with the bleed valve being left open to ensure that the downstream pipeline remains isolated during maintenance work.

This is recognised as being the best method for safe plant maintenance.

With a carbon steel body and stainless steel internals, Spirax Safebloc is available from DN15 to DN100 and flanged to PN40 or ANSI 300.

Spirax Safebloc can be used on general steam plant as well as other fluid systems, such as hot water.

Spirax Sarco benefits built on knowledge. Spirax Sarco has all the products, services and expertise needed to make the best investments in building and maintaining a steam or industrial fluid plant.

A complete and flexible range of services is available to cover any need from supplying an individual steam trap, to a complete new plant and everything in between. Spirax Sarco Services can help identify, improve and sustain steam system efficiency at every point in the steam and condensate loop.

In addition, custom-built solutions can be created to take a project from design and build to commissioning, support and scheduled maintenance on time and on budget. Pioneers in steam, Spirax Sarco has developed longstanding relationships with customers across a wide range of industries, including hospitals; food & beverage; pharmaceutical; oil and petrochemical; and waste and waste water. Forward thinking to keep you one step ahead As the market leader in steam systems, Spirax Sarco has the market presence and resources to keep abreast of the latest legislative and technological developments.

At the forefront of training Well-trained personnel are essential to achieving the best plant performance.

Spirax Sarco can provide all the training that your staff requires, either on-site or at the Cheltenham-based training centre, for nationally recognised qualifications including BTEC, City & Guilds and the Boiler Operative Accreditation Scheme (BOAS).

View full profile