DBB Ball Valve (Twin Ball)

Size Range

NPS 2" / DN50-NPS 60" / DN1500

Pressure Class

Class 150 / PN10 to Class 2500 / PN420

Available sizes

Standard DN sizes covered by this product. Confirmed at quote.

Configure your variant(manually adjust box on the right if you require a different spec)

Pressure

Class 150Class 300Class 600Class 900Class 1500Class 2500PN10PN16PN25PN40PN64PN100PN160PN250PN320PN400

Materials

All available material options per part. Click a pill to set it in the configurator.

body

Carbon SteelStainless SteelAlloy Steel

Features

• Double block and bleed isolation achieved within a single valve body via bleed port between obturators
• Reduced space and weight compared to two separate isolation valves plus bleed valve
• Minimised leak paths
• Increased line structural integrity
• Anti blow-out / low emission stems
• Fire safe design
• Anti-static design
• Independent ball and stem
• Self-aligning trims
• Self-relieving / double piston effect seats
• Floating seats
• Soft or metal seated options available

Notes

• Technical specification available for download (not detailed on page)
• Operator options listed as 'Manual, electric, pneumatic, etc.' — additional options not specified

Description

A Double Block and Bleed (DBB) ball valve incorporating two in-line closure elements and a bleed port between the obturators, allowing isolation and venting of trapped fluid between the two balls within a single valve body. Designed to replace two separate isolation valves and a bleed valve in a pipeline system. Available in floating or metal seated configurations with independent ball and stem arrangement.

Available pressure classes

Pressure classes this product is rated to.