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3. OPERATION
3.1
Operation description
Multi spray pumps are composed of two main parts: the pneumatic motor and the pumping unit; the
pneumatic motor is provided with a pneumatic piston and with a switch for the change of the move-
ment direction.
The pumping unit is made up of an anti-wear chromium plated suction tube and rod. The packing can
be adjusted.
The motor’s straight and alternate movement creates an equivalent movement in the pumping unit.
A system of valves allows the simultaneous suction and pressurization of the product to be sprayed,
in the two chambers of the suction tube, therefore ensuring the utmost uniformity during the applica-
tion.
FIGURE 1
Pneumatic piston
Switch
Upper V packing
Product outlet
Lower V packing
Suction tube
Cylinder
Rod
Air inlet
Product inlet
MO
T
OR
PUMPING UNIT
Содержание MSU-113 N
Страница 38: ...38 Plunger pump set type PP7131N...