Bypass filtration
Filter arrangement, within a circuit separated from the main flow, incorporating a separate pump and in most cases a twin filter . This separation from the main circuit makes it possible to be very precise
Power section
comprises all the components within a circuit which influence the transmission of energy from the pump to the loads ( Figure L 17 ). As such, the power section in a hydraulic system only contains hydraulic
Initial contamination
out at the start by flushing the installation. For this purpose a flushing system with a dedicated pump and filters is often used.
Vibration fatigue limit of a system
integral control element in the pressure control circuit, as is the case for a pressure-regulated pump.
Closed centre system
pumps with power limiting and pressure limitation set to minimum flow at pressure or On a variable pump with p/Q control system set to minimum flow with a different pressure above zero ( standby pressure
Flow divider
Figure S 106 ). The indexing accuracy is around ±3-5 %. Alternative: rotary flow divider , multiple pump . In the case of multiple pumps, the volumetric flow is fed to multiple displacers, which are coupled
Control in the power range
compressed air or hydraulic fluid. in terms of direction, strength and pressure potential from the pump to the cylinder (motor). Its to the signal area in the case of electrical signal processing is formed
Servo drive
servo motor ), servo valve hydraulic cylinders ( servo cylinder ), but the combination of a servo pump and normal cylinder/motor is also designated as the servo drive.
Calculating the sound power
in a free field than the pump in a soundproof room. The increase during installation will again be at least 5 dB(A). This means that in order to keep within 85 dB(A), the pump must not exceed 75 dB(A)
Pressure switching valves
made between: Shut-off valve The valve opens to the outlet on reaching a pilot pressure (example: pump idle circulation valve). Switch-off valve – internally controlled Enables the oil flow to a further