Hydraulic pump, fixed displacement
Converts mechanical energy into hydraulic flow at a constant volume per revolution. The triangle points outwards towards the port.
ISO 1219-1
Pumps and motors
The components that convert between mechanical and hydraulic energy.
Hydraulic pump, variable displacement
Pump whose displacement can be adjusted. The diagonal arrow through the circle indicates a variable setting.
ISO 1219-1
Hydraulic motor, fixed displacement
Converts hydraulic flow into mechanical rotation. The triangle points inwards towards the centre.
ISO 1219-1
Test yourself on these in the symbol trainer.
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