Unit operator
18 July 2017
Valve
18 July 2017

Usable fluid

The hydraulic fluid volume recoverable from the accumulator system between the maximum charging pressure and the minimum operating pressure of the accumulator. The minimum operating pressure is established by the pressure at which the precharge pressure closes the accumulator poppet valve stopping further flow from the accumulator. The poppet valve prevents loss of the nitrogen precharge into the hydraulic control lines.