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Offshore Plants

Air Pressure Vessel for Drillship

ENK has delivered various Air Pressure Vessel to customers in order to obtain constant tension in the marine drilling riser. Air Pressure Vessel is connected to the Piston accumulators air-side in Marine riser tensioner system.
This means that the riser tensioner unit acts like a hydro/pneumatic spring by using the compressed air from Air Pressure Vessel.

Code EN ISO 11120, DNV-OS-E101, ABS+CDS
Type Horizontal,Vertical
Pressure 100bar ~ 400bar
Capacity 440 L ~ 2210 L
Tube O.D ø500~ø622
Tube Length 1,000mm ~ 10,000mm
Main Valve 2"up to class 2500 (413 bar)
3'up to class 1500(255bar)