Operating and Maintenance Instructions
EN
DC.16DEX
10
www.dvp.it
8702042 – 01/10/2014 – R.4
4.7
MOTOR INSTALLATION
It is possible to install any type of electric or hydraulic motor that has the features described in the table of technical
data, with flange and shaft corresponding to:
M80/4 - B5 size with flange and shaft with a reduced size of M71 as per standard IEC-72.
WARNING
This pump
need motor monophase with high starting torque motor with mechanical
disengager.
WARNING
Install the coupling on the motor by following the following instructions:
•
Fit the coupling on the motor shaft until the proper position is reached.
•
Tighten screw “A” to firmly fix the coupling to the shaft.
A
4.8
USER SYSTEM
HAZARD
The user must ensure that the fluid, gas or vapour processed by the pump does not produce
unusual chemical reactions (e.g. exothermic chemical reactions) that can lead to the maximum
permitted surface temperature being exceeded or a degradation in the level of protection of the
pump itself.
HAZARD
The user must ensure that the temperature of the flammable liquid, gas or vapour produced by
the pump is higher than the temperature of the same class (T4 = 135°C), shown on the
identification plate.
Make sure that no harmful substances contaminate the user system during installation.
If you wish the system to maintain vacuum even when pump is stopped, install a cutoff valve between
pump and system.
Make sure that no vibrations or stresses are transmitted to the pump connection.
4.9
CONNECTION
HAZARD
Pump connections should be performed by skilled and trained personnel only.
4.9.1
INTAKE AND OUTLET CONNECTIONS
User system connections (both intake and outlet) must be performed with pipes with a diameter equal to or greater
than the pump suction inlet. The weight of pipes or any expansions must not burden the pump.
It is advisable to make the final connection to the pump using flexible pipe or fittings. It is important to tighten all
pipes and couplings. Very long pipes or pipes with a diameter that is too small diminish pump performance.