Ball Valve

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

WaterPetrochemical fluidsMetallurgical process fluidsMining fluidsTextile process fluidsEnergy sector fluidsPaper process fluidsFood grade fluidsSteel process fluids

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

Manual leverElectric 230V ACPneumatic single-acting

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

Smart find

Searches our product catalogue using your spec. Drop a spec sheet or parts list (PDF, Excel, CSV, Word or text, several at once), paste a description or a part number and we'll find the closest matches for each. Anything we can't match goes to your RFQ as a custom enquiry for our team to source.

Classic Ball Valve configurations

View full Classic Ball Valve system →
This product is part of the Classic Ball Valve modular system. All configurations share the same hydraulically operated body: the control function is set by the pilot valve(s) attached. An existing Classic Ball Valve body in the field can be reconfigured for a different duty simply by swapping the pilot, without replacing the body.

Related Ball Valves

Full Welded Ball ValveBall ValveREF 1

Full Welded Ball Valve

Type
Ball Valve
Size
Pressure
Body
Standards
Add variant details

Adds to your quote request, not a purchase. Refine size, pressure and material before submitting.

Forged Ball ValveBall ValveREF 10

Forged Ball Valve

Type
Ball Valve
Size
Pressure
Body
Standards
Add variant details

Adds to your quote request, not a purchase. Refine size, pressure and material before submitting.

API Forged Ball ValveBall ValveREF 11

API Forged Ball Valve

Type
Ball Valve
Size
Pressure
Body
Standards
Add variant details

Adds to your quote request, not a purchase. Refine size, pressure and material before submitting.