DBB Ball Valve (Twin Ball)
Datasheet
Download datasheet (PDF)Specifications are indicative. Final specification is confirmed at quotation.
Specifications
Confirmed at quote- Size Range
- DN50 to DN1500
- Pressure Class
- Class 150, Class 300, Class 600, Class 900, Class 1500, Class 2500
- Operating temperature
- -60°C to 250°C
Configure your variant(manually adjust box on the right if you require a different spec)
- Size
- Pressure
Materials
All available material options per part. Click a pill to set it in the configurator.
- Body
Operating media
Typical applications
- Water supply pipelines
- Petrochemical pipelines
- Metallurgy
- Mining
- Textile
- Energy
- Paper
- Food processing
- Steel industry
- Flow direction switching
- Fluid shunting or mixing
Actuation options
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
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.
Selection notes
This ball valve is a double block and bleed, twin and dbb pattern.
Sizes run DN50 to DN1500, in Class 150, Class 300, Class 600, Class 900, Class 1500, Class 2500.
The body is offered in Carbon Steel, Stainless Steel and Alloy Steel, so the grade can be matched to the service rather than the other way round.
Stated service media include water, petrochemical fluids, metallurgical process fluids, mining fluids, textile process fluids and energy sector fluids.
It is catalogued for Water & Wastewater.
Working temperature is -60°C to 250°C.
Available pressure classes
Pressure classes this product is rated to.
Used in
Related guides
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