Set of 4 Buoyancy Tanks...
Set of 4 Buoyancy Tanks Assemblies(BTA) with lifting capacity of 12.000...
Set of 4 Buoyancy Tanks Assemblies(BTA) with lifting capacity of 12.000 TON Gross - 9.000 TON NET.
Warning: Last items in stock!
|Manufacturer||Aker solutions - Norway|
|Performance specification||About 12.000 TON lifting capacity gross - 9.000 ton NET|
|Other||Operational water depth about 59 meter|
|Class||Documented and DNV certified method for removal of jackets|
Documented and DnV certified method for removal of jackets
Comprehensive systems & operations description
Buoyancy Tanks Assemblies(BTA)
One 4” combined seawater inlet/outlet line and one 4” combined vent/compressed air supply line to each ballast compartment.
Each seawater inlet/outlet line is equipped with one remote operated valve and one ROV operated valve, the latter for contingency purpose.
The vent lines are connected to a distribution manifold located inside the pyramid at the top of the BTA. This manifold is equipped with two remote operated vent valves and one remote operated valve to segregate the air flow between the lower ballast tanks and the upper ballast tanks.
In addition there are two inlets for compressed air which are equipped with check valves.
Each vent line is equipped with an in-line block valve outside the pyramid for use during Roll Over and Roll Back operations.
Compressed air for ballasting is supplied from a compressors located on the OSV via two air hoses (part of the umbilical) connected to the distribution manifold on the BTA.