The hydraulic control circuit for the variator includes a number of electrically-controlled shift valves and pressure control valves.

The number of proportional valves of the distribution unit (D) is equal to the maximum number of actuators that can be simultaneously activated.

Additionally, since the number of the valves of the refrigeration system is decreased, a production cost is reduced.

The reason for the name Thema 8.32 referred to the number of cylinders (8) and the amount of valves (32).

Process air is fed into the oxidizer through an inlet manifold containing a number of hydraulically or pneumatically operated flow control valves (such as poppet valves).

The present invention reduces the number of filter cores and valves used, cuts costs and effectively controls the flow of each filter.

Accordingly, the number of additional safety valves (18) may be reduced so that the weight of the system (10) is minimized.

An adaptive braking/traction control system (10) comprising a number of solenoid valves (80, 150, 152) to control pressure to a number of brake cylinders (62).

An adaptive braking/traction control system (10) comprising a number of solenoid valves (80, 150, 152) to control pressure to a number of brake cylinders (62).

Valves typically regulate, direct or control the flow of fuel by opening and closing, using pressure differences to direct the flow.