BEDU S Series, Руководство по эксплуатации и техническому обслуживанию

Страница: 11 / 40

4.3 INITIAL INSTALLATION
According to the conditions of supply, the pump can be delivered as follows:
4.3.1 Complete pump unit
In this case the Customer must fasten the baseplate to a solid support in order to ensure the correct axis
alignment in all operating conditions.
We recommend the use of vibration dampers below the pump base and vibration damping
sections on pipes near pump inlets.
Once the pump unit has been positioned, proceed as described below:
a) connect suction and discharge pipes respectively to the pump inlet and outlet;
b) power the motor, by carefully controlling the compatibility of motor voltage and frequen-
cy with those of the system;
c) open the intake and discharge pipe valves, if any;
d) run the motor for a while to verify that the pump rotates in the direction indicated by the
arrow stamped on the pump.
4.3.2 Bare shaft pump
In this case, before following the steps described at Paragraph 4.3.1, choose the type of mo-
tor and align it to the pump on a baseplate.
The motor must be selected by the Customer depending on the type of operation for which it
is specifically requested (continuous operation, discontinuous operation, repeated startups,
indoor or outdoor installation, explosive atmosphere, critical environmental conditions, alti-
tude, etc.) with power compatible with that required by the pump.
The alignment is performed by flexible or magnetic coupling on a baseplate.
To align the flexible coupling make the following basic operations:
a) accurately measure the height of the pump axis (h) and the height of the motor axis ( H );
b) calculate the difference D = h
– H
;
c) prepare some aluminium (or steel) shims with height D ;
d) place motor and pump on a single plane (verify their flatness), by placing shims where
necessary (or under the motor feet or the pump feet);
e) verify that the axes of the two shafts coincide, by measuring the two diameters by differ-
ence, that is, by accurately measuring R, D1 = 2R + d . If this equality is not verified,
properly place calibrated shims so as to align perfectly the pump unit;
www.bedu.nl