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.
| Class | DNV,ABS |
| 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) |
The storage vessel is designed to keep brathing gas for diving system.
ENK is qualified to manufacture this storage vessel and the specfications for vessel design, manufacture, and inspection comply with the DNV and ISO.
| Working Pressure | 200bar | |
| Number of Jumbo Tube | 8EA | |
| System Water Volume | 23,200 L | |
| System Height | 2,900mm | |
| Jumbo Tube | Code & Standard | ISO 11120 & DNV |
| Length | 11,675mm | |
| Water Volume | 2900 L | |
| Weight(Approx.) | 3,098 Kg | |
| Outer Diameter | ø609.6 | |
