For the fixed displacement pump system shown in Figure 1, excess flow is bled off from the supply so that the pump pressure is now at the same level as that required at the actuator piston.

Figure 1. Bleed Off Control  

Bleed-off control is therefore more efficient than meter-in and meter-out be­cause of the lower pump pressure. However, as for meter-in, it cannot be used with pulling loads and it can also only be used to control one actuator at a time from the pump.