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|Port Size:||2"~8"||End Type:||Flange End|
|Driven By:||Manual Gear||Structure:||Trunnion|
|Port:||Full Bore||Working Temperature:||-25~-180℃|
DN 200 8" flanged end ball valve,
DBB high pressure flanged ball valves,
Trunnion flanged end ball valve
Flange End Trunnion Mounted Double Block Bleed Forged Steel High Pressure DBB Ball Valve
TEKO DBB ball valves guarantee complete isolation of critical components by means of two block valves and one bleed valve in one compact housing assembly.
|Size range||DN 8 to DN 200|
|Pressure range||ANSI #150 to #2500; PN 10 to PN 420|
|Temperature range||-200°C to 260°C|
|Connections||screwed, welded, flanged|
|Fire safe||API 607 and ISO 10497|
WHAT IS DOUBLE BLOCK AND BLEED?
Double block and bleed (DBB) is the practice of shutting in a section of pipe on both sides of the valve rather than just one.
It means you close the ball valves to block both the upstream and downstream sides of your working area, and then bleed any pressure that remains in the piping and valve.
The practice of double block and bleed reduces the risks of harm to people and the environment, which is why many oil and gas companies have adopted the practice as mandatory when working on field equipment.
Contact Person: sales