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Address: NO.720, Suide Road, Jiading District,Shanghai, China.
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Integral double block and bleed valve

  • Port size:1/2"-12''
  • Pressure:150LB-2500LB
  • Structure:DBB
  • Medium:Water,steam,oil,gas
  • Temperature :-40~570℃
  • Body material:Carbon Steel, Stainless Steel
  • Connection:RF, BW, RTJ
  • Feature:Integral body
China Integral double block and bleed valve manufacturer,factory and supplier,Integral double block and bleed valve has two balls, and one discharge valve (needle valve) in the middle.DBB ball valve could be designed with soft seat or metal-to-metal seat. The sealing is reliable and suitable for the Harsh working conditions.

Integral double block and bleed valve replace existing traditional techniques employed by pipeline engineers to generate a double block and bleed configuration in the pipeline. Two block valves and a bleed valve are as a unit, or manifold, to be installed for positive isolation. Used for critical process service, DBB valves are for high pressure systems or toxic/hazardous fluid processes. Applications that use DBB valves include instrument drain, chemical injection connection, chemical seal isolation, and gauge isolation. DBB valve does the work of three separate valves (2 isolations and 1 drain) and require less space and have less weight.

Integral double block and bleed valve is that a valve owns two balls. It could be opened and closed together or separately. The valve could be replaced with the multiple valves in traditional pipelines. Meanwhile, it reduce leakage point in pipeline system, with fast discharge and shutdown function. DBB ball valves can save installation space and reduce pressure of pipeline system. It also owns simplify installation procedure and reduces the cost of maintenance. At present, DBB ball valves made by ANIEC have been used by some end users such as Petronas.

Intergal double block and bleed valve specification
* Main Structure: Double Ball design
* Sizes: range from 1/2"-12''
* Pressure: range from ANSI 150LB-2500LB
* Operation: Direct Mount, Lever Handles, Gear Operators, Pneumatic Actuators or Electric Actuators.
* Ends connection: R.F, B.W, RTJ

* Material: Carbon Steel, Stainless Steel
* Standard: API6D, BS5351, ASME, ANSI, etc.
* Inspection Standard: API598
* Blow-out proof stem, PTFE seat and packing
* Full Bore or Reduced Bore
* Fire Safety API607,API 6FA
* Floating and Trunnion Mounted
* Anti-static device
* Locking device
* ISO 5211 Top mounting