Werbung
Verfügbare Sprachen
Verfügbare Sprachen
4.
Commissioning
4.1
General
The pump may be commissioned only by the trained personnel of the operating party or by members of
the Barmag pump service.
Inspect the rotational direction of the drive prior to each re-commissioning (for the permissible rotational
directions, refer to the arrow indicating the rotational direction on the front side of the pump). An incorrect
rotational direction may result in damage to the pump and the system.
Prior to commissioning, inspect the line connections at pump inlet and outlet for leakage.
When loosening the screw plugs of the sealing chamber or opening the air drain valve (opposite of the
product discharge in case of drum pump) health-endangering or hot liquids may spill out or correspond
ing gases may leak out. Wear appropriate protective clothing. Always open the upper screw plug of the
sealing chamber first in order to drain possibly accumulated gas.
4.2
Preheating
∙
The pump must be started up only when the required operating temperature has been reached and
when being evenly and completely heated.
∙
There are two possibilities to preheat the pump.
- preheating in an oven
- preheating in the installation
∙
In case of first commissioning, residues of silicone oil remain in the pump. In order to avoid the silic
one oil crystallizing out at high temperature, the following temperatures and their respective preheating
times must not be exceeded:
temperature 225 °C:
4.3
Checks
After the proper assembly of the pump in the equipment the following tests must be carried out before
starting-up (shaft of the pump drive not yet mounted):
∙
Check the tightening torques of the pump fastening screws (refer to table, Chapter 8).
∙
Check the ease of pump rotation.
∙
Check the direction of rotation of the drive (see on pump data sheet (Chapter 7) for permissible direc
tion of rotation). The wrong rotation direction can damage the pump and the installation.
4.4
Commissioning Stuffing Boxes
First Start‐up of Stuffing Box Packing
During assembly the screws of the stuffing box have been tightened only slightly to be able to check the
ease of pump rotation prior to start‐up
∙
First, tighten the stuffing box nut with 1,5 times the tightening torque (see technical data sheet of the
product in chapter 7). Afterwards, loosen the stuffing box nut and re-tighten it with the specified tight
ening torque.
∙
By default, pumps with stuffubg box seal may be used for inlet pressures of up to 10 bar. Higher inlet
pressures are possible if this has been approved by Barmag with regard to the individual case. The
tightening torque of the stuffing box specified in the technical data sheet of the pump also applies to
an inlet pressure of 10 bar. In case of higher inlet pressures, the stuffing box must be tightened
stronger; e.g. with twice the value in case of pressures of 20 bar, with three times the value in case of
inlet pressures of 30 bar, etc.
Page
20
Customer:
max. preheating time 24 h
Order:
Edition:
01.20
Werbung
