582156110-EN-indC-Pump-20F50 pH.docx 20/11/2020
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8.2 Operating principle
Pump
The pump consists of:
A reciprocating air motor,
A fluid section mechanically coupled to the air motor.
The motor is supplied with compressed air by means of the
phosphorus knob. The pressure is read on the gauge.
During its reciprocating movement, the motor drives the piston of the
fluid section, the paint is drawn and is forced back under pressure.
Due to its design, the pressure is always the one read on the gauge x
by the pump ratio.
The pump is also supplied with an air regulator with a black knob. It
enables to adjust the spray air pressure of the gun.
Therefore,
to adjust the fluid flow rate, turn the phosphorus knob.
to adjust the spray air, turn the black knob.
The pump is a FLOWMAX® one (with bellows).
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