Patent attributes
A system for operating and/or lubricating a plurality of valves. The system includes at least first and second control units, each of which is associated with a respective valve. Each control unit includes a hydraulic pressure inlet, a hydraulic pressure outlet, a hydraulic pressure line connected between the hydraulic pressure inlet and the hydraulic pressure outlet, and a hydraulic port which is connectable to the valve. The hydraulic pressure inlet of the first control unit is connectable to a hydraulic pressure source and the hydraulic pressure outlet of the first control unit is connectable to the hydraulic pressure inlet of the second control unit. In operation, the control unit is operable to selectively communicate hydraulic pressure from the hydraulic pressure line to the hydraulic port.
