Technical characteristics and performance
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, the lower flap (3)
opens and the pallet (4) closes. The piston (1) expels the product from
the upper chamber (V2) to the outside and sucks the product to fill
the lower chamber (V1). The pallet pushes the product into the pump
foot (V3)
When the piston (1) is lowered, the upper flap (2) opens, the lower
flap (3) closes and the blade (4) opens. 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. The pallet (4) exits the pump foot (V3)
without expelling the product.
1
2
3
V
1
V
1
V
2
V
2
4
V
3
V
3
