LP - Air driven hydraulic power packs
rate depends on the set air pressure and the currently effective hydraulic counter-pressure. It can drop away until the pump comes to a standstill. The pump starts up again independently once the hydraulic
LP - Air driven hydraulic pumps
rate depends on the set air pressure and the currently effective hydraulic counter-pressure. It can drop away until the pump comes to a standstill. The pump starts up again independently once the hydraulic
Servo hydraulics
This drive has been specially optimized for press brakes and, through the targeted use of stored drop energy for the return stroke, it provides an extremely high level of dynamics while also achieving
Mobile hydraulics
Load-holding valves are a type of pressure control valve. They prevent loads on cylinders or motors dropping in an uncontrolled manner. For this purpose they are pre-loaded with a pressure setting that is
Drop-off time
Time that elapses on the reduction of a variable from a defined upper value to a defined lower value.
Pressure drop-flow rate chart for valves
of the Δp of directional and check valves depending on the flow rate Q (Figure D 78) . The pressure drop-flow rate chart is an important parameter for assessing and selecting these valves. On 4-way directional
Pressure drop
Time-dependent pressure change from a higher value to a lower value (DIN 24 312). The pressure drop is generally referred to a device or a section (e.g. pipe).
Valve pressure difference
l valves, the nominal flow is stated at a 10 bar valve pressure drop, and for servo valves it is stated at a 70 bar valve pressure drop. In the case of the continuously adjustable pressure valves : inlet
Velocity of sound pressure waves
m/s and drops rapidly with undissolved air in the oil. For this reason an average value of 1 300 m/s is used in the majority of cases. In hose lines the velocity of sound pressure waves drops again si
Nominal flow rate
at the nominal value (= 100%) for the input signal and at the nominal value for the valve pressure drop. Usually for servo valves this is 70 bar ( Figure N 4 ) and for proportional valves 10 bar at two [...] nominal pressure for the system). For switching directional valves : Flow rate causing a pressure drop of 1 bar when it passes through the valve.