Technical characteristics
26
6.2
Principle of operation
Expected use
These pumps coupled to air or hydraulic motors are intended for
transferring or spraying different liquid or pasty products with a desired
flow rate and output pressure.
Functional description
When the piston (1) rises, the upper flap (2) closes and the lower flap
(3) opens. The piston (1) expels the product from the upper chamber
(V2) to the outside and sucks the product to fill the lower chamber
(V1).
When the piston (1) is lowered, the upper flap (2) opens and the lower
flap (3) closes. The piston (1) compresses the fluid in the lower
chamber (V1) and transfers it to the upper chamber (V2). Since the
volume of the upper chamber (V2) is half that of the lower chamber
(V1), a volume equivalent to the upper chamber (V2) is expelled from
the pump.
1
2
3
V
1
V
1
V
2
V
2
