INOXPA HLR, Installation, Service And Maintenance Instructions

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(A) 2021/11 4.Installation 9
4.3. LOCATION
• Position the pump as near as possible to the suction tank, and whenever possible below the level of the liquid.
• Place the pump in such a way that there is enough space around it to provide access both to the same and to the motor.
(See Chapter 8.
Technical Specifications
to consult dimensions and weights).
• Place the pump on a level and flat surface.
• The basement must be rigid, horizontal and against any vibration.
Install the pump in such a way that it can be properly ventilated. If the pump is to be installed
outside, it must be done so under cover. Its positioning must enable easy access for any inspection
and maintenance operations that may need to be carried out.
4.3.1. Foundation
Install the pump base so that the drive and pump are level and well supported. Therefore the pump unit should be installed on
a base plate – according to DIN 24259-, or on a frame, both placed exactly level on the foundation. The foundation must be
hard, level, flat, vibrations free ...to prevent base distortion (to keep the alignment pump – drive guaranteed while
commissioning).
To install the pump unit on the foundation proceed as follows:
• Make holes in the foundation to fit foundation bolts. This is unnecessary when expanding screws are used instead of
foundation bolts.
• Place base plate or frame with the aid of shims horizontally on the foundation.
• Grout
• When the grout has entirely hardened the pump unit can be placed on the base plate or the frame. Tighten the nuts on
the foundation bolts carefully.
For other foundations consult INOXPA.
4.4. COUPLING
For the couplings selection and assembly consult to the supplier manual. Sometimes the torque of the positive displacement
pumps can be high enough. Therefore, a coupling have been chosen 1.5 to 2 the adequate torque.
4.4.1. Alignment
The pump and motor shaft of complete units have been accurately pre-aligned in our factory.
After installations of the pump unit, the pump and motor shaft should be re-aligned.
• After unit is installed recheck alignment of pump and motor shaft and alignment of piping. Realign if necessary.
• In the case of applications dealing with high temperatures the pump can be operated temporarily at its working
temperature. Then recheck alignment pump - piping.
Place a straight-edge (A) on top of the coupling: the straight should make contact with both halves of the coupling over their
entire length. See figure.
Repeat the check, but this time on both sides of the coupling near the shaft. For the sake of accuracy, this check should also
be done using an outside caliper (B) at two diametrically opposite points on the outside surfaces of the two halves of the
coupling.