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EDITION 09 /2015
OPERATING MANUAL
5.1.3
COMPRESSED AIR SUPPLY CIRCUIT
Firmly install all components of the compressed air supply circuit, by anchoring them on a
wall or frame. Make sure the system is correctly connected to a grounding terminal.
Install a general air shut-off valve (A), so that the compressed air fl ow in the supply circuit
can be controlled.
Mount a compressed air line fi lter (B). Its function is to remove any dirt and condensate
residue from the supply line.
Connect the S462.00A hose to the high-pressure special control fi tting (L) on the pneuma-
tic inlet of the Unica 4-270 N pump before the pressure regulator.
Install a pressure regulator (C) on the pump to adjust the pressure of the air entering the
pneumatic motor and to be able to choose the desired working speed. The Unica 4-270 N
pump performs on the working fl uid a pressure of 4.5 times the supply air pressure, with
peak values of 30 bar.
Install a motor air shut-off valve (D) downstream the pressure controller: this allows to
open/shut off the air fl ow supplying the pneumatic motor.
5.1.4
SUCTION CIRCUIT
Use electrically conductive pipes (see Paragraph 2.2.3).
Connect the working fl uid suction system to the pump by means of a system of pipes and
fi ttings (E). For the correct pump inlet thread diameters, please see Paragraph 4.3.2 - Tech-
nical Data. Use a system of pipes suitable for the working conditions.
Make sure that the height diff erence between the product level in the tank and the pump
suction unit does not exceed the max. allowed suction height given for the pump (see
Paragraph 4.3.2 - Technical Data).
5.1.5
DELIVERY CIRCUIT
Use electrically conductive pipes (see Paragraph 2.2.3).
Connect the pump to the delivery circuit through a system of pipes and fi ttings (F).For the
correct pump outlet thread diameters, please see paragraph 4.3.2 - Technical Data.
Install a purge valve (G) for the fl uid, which allows to easily release the remaining pressure
inside the system in case the working session stops. The risks deriving from an unattended
system in pressure are thus reduced.
Install a product shut-off valve (H) allowing to isolate the pump from the service circuit.
PART NO. ZZB028ENG
Unica 4-270 N
.
22
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