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DBB Trunnion Mounted Ball Valve, 2-12 Inch, Class 150-900 LB

Short Description:

The Double Block And Bleed Ball Valve,is designed to replace the complex form of multiple valve connections in pipeline.it utilize a twin-valve design. By combining two valves into one body, a twin-valve design reduces weight and potential leaks paths while meeting the OSHA requirements for double block and bleed.

  • Size: 1/2 – 16 Inch.
  • Pressure: Class 150 LB – 2500 LB.
  • Material: Carbon Steel, Stainless Steel, Alloy Steel, etc.
  • floating or trunnion mounted,for the purpose of DBB and DIB.

NORTECH is one of the leading China Double Block And Bleed Ball Valve Manufacturer & Supplier.


Product Detail

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Product Show: double block and bleed ball valves

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Key Specifications / Features of double block and bleed ball valves

NAME: DBB FIXED BALL VALVE.
DESIGN AND MANUFACTURE: API 6D.
INSPECTION AND TEST: API 6D.
END FLANGE DIMENSION: ASME B16.5.
F-T-F DIMENSION: API 6D.
PRESSURE-TEMPERATURE: ASME B16.34.
DESIGN TEMP: -29℃-150℃.
NOMINAL DIAMETER: 2-12 Inch.
DESIGN STANDARD: CLASS 150-900 LB.

Product Range:
Body Material: Carbon Steel, Stainless Steel, Alloy Steel.
Normal Diameter: 2 - 60 Inch (DN50-DN1500).
End Connection: BW, Flanged.
Pressure Range: Class 150 - 2500 LB (PN16-PN420).
Operation: Lever, Gearbox, Electric, Pneumatic, Electro Hydraulic Actuator, Gas Over Oil Actuator.
Working Temperature: -46℃-+200℃.

Application of double block and bleed ball valves

Double block and bleed ball valves are mostly used in the oil and gas industry,but can also be helpful in many other industries. It’s typically used where bleeding the valve cavity is required, where piping needs isolation for maintenance, or for any of these other scenarios:

  • Prevent product contamination.
  • Remove equipment from service for cleaning or repair.
  • Meter calibration.
  • Liquid service near waterways or municipalities.
  • Transmission and storage.
  • Chemical injection and sampling.
  • Isolate instrumentation such as pressure indicators and lever gauges.
  • Primary process steam.
  • Shut off and vent pressure measuring instruments.

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