Efficiency of pipe
Power losses in pipes are caused by the in the pipe, which consists of friction losses and form-related losses — neither of which are related to pressure. As such, the efficiency of pipe can be expres
Pipe capacity
Hydraulic capacity is a measure of the volume accommodated based on the pressure increase required. It is a function of the compressibility of the fluid. The compressibility of the oil in a pipe is in
Pipe inductance
Pipe inductance is a measure of the pressure difference required, assuming the flow is free of friction, to change the flow rate inside a pipe. It is based on the mass inertia associated with the flui
Pipe impedance
The column of fluid in pipes is elastic and affected by both weight and friction. These characteristics are described in terms of the pipe capacity , the pipe inductance and the flow resistance (effec
Line filter
Filter installed directly in the pipe using a thread or flange (see also flange mounted filter ).
Overall control unit
Functional unit responsible for controlling the overall process and superordinate to the hierarchical control circuits (DIN 19 237). The core element of this kind of overall control unit (control syst
Printed circuit board
The printed circuit board is an electronic circuit manufactured using a largely automated process. The copper layer in the base plate made of insulating material (generally in the Europe format) is re
Break away pressure
Pressure required to overcome the stiction under defined conditions (DIN 24 312)
Logic diagram
Neutral representation of a circuit diagram (for a function sequence) in accordance with IEC (DIN 40 700). The logic diagram is not specific to any component, i.e. it applies to hydraulic, pneumatic o
Logic element
Electrical, electronic, pneumatic, mechanical or hydraulic component capable of performing a logic function ( Figure L 26 ).