Accumulator Assembly Systems
Hannon is one of the industry’s leading subsea Accumulator Assembly Systems manufacturers. The total stack accumulator requirement may be placed in four accumulators located at each corner of the stack, allowing the weight of the accumulators to be evenly distributed and reducing the total number of accumulators.
Piston Type Accumulators
- Piston type 14.50” bore x 175 gal. capacity, 7500 psi working pressure
- Designed per ASME Section VIII, Division 2 Rules.
- Bolted end caps with mechanical and charpy test results
- Bolt on lifting eye
- Autoclave 9/16” stainless steel needle valve at gas connection port
- Stainless steel SAE type flange, high pressure rupture pin relief valve, and seal sub included for fluid connection
- 3-part offshore coating system
- ABS Guide for Certification of Drilling Systems
- Elastomers and materials suitable for use with helium
- Bronze piston with low friction seals and replaceable non-metallic wear rings
The Benefit of Fewer Accumulators
- May result in lighter total weight
- Allows for greater service access to the BOP stack
- Reduces the number of potential failure points/leak paths
- Creates fewer seals to replace
- Reduces pre-charge time
