Pressure Compensators

Pressure compensators are used in all subsea hydraulic systems to negate the effects of pressure differential at depth.

The compensation maintains a constant slightly higher oil pressure within the hydraulic system, regardless of depth.

It also provides the initial head pressure the hydraulic pump requires for startup without cavitation.

Typically around 12 PSI. The design of the compensator ensures this slight overpressure is maintained for all water depths, from surface to full ocean depth.