Lifting motion: The piston transports hydraulic oil under the diaphragm - this then moves.
The diaphragm is pushed upwards: the plate inlet valve closes and material is then forced out of the ball outlet valve into the hose.
The ball valve closes: the traction movement of the diaphragm downwards creates a vacuum.
The plate inlet valve opens: the vacuum draws in new coating material.
The piston again transports hydraulic oil under the diaphragm and the cycle begins again.
Lifting motion: The piston transports hydraulic oil under the diaphragm - this then moves.
The diaphragm is pushed upwards: the plate inlet valve closes and material is then forced out of the ball outlet valve into the hose.
The ball valve closes: the traction movement of the diaphragm downwards creates a vacuum.
The plate inlet valve opens: the vacuum draws in new coating material.
The piston again transports hydraulic oil under the diaphragm and the cycle begins again.