salmson NOS Serie Instalación E Instrucciones De Uso página 22

ENGLISH
pump is filled.
In any event, the operating instructions of the motor manufacturer
must be followed, since the motor is generally incorporated by
Salmson into the pump set.
7.4 Levelling the pump set
Place shims under the base plate on both sides of the foundation
bolts, 10 mm from the base plate edge.
Use a spirit level to align the set.
Care should be taken to minimize distortion of the base plate during
installation.
The foundation bolts should be embedded in concrete using quick-
setting grout.
7.5 Coupling
Install the coupling avoiding hard blows, if necessary warm them for
an easier fitting.
Arrange the pump and motor on a level base. The shaft ends must be
perfectly concentric. The distance between each half of the N-EUPEX
B (FLENDER) coupling must be 2 - 3 mm.
If other manufacturers' couplings are used, follow the manufacturer's
instructions. After installation on the foundation and connecting the
pipework, the coupling alignment must be checked and realigned, if
necessary. Moreover, after reaching the operating temperature the
alignment of the coupling must be checked again.
The coupling requires a guard that meets DIN 31001 in order to avoid
accidental contact during operation.
The following is required:
a = a1 and b = b1
Rubber
FIG. 6
7.6 Checking before installation
Before installing the pump on the plant, the following points must be
checked:
- Is the electrical current to the drive motor switched off?
- Are suction and discharge lines emptied and closed by valves?
- Is it possible to rotate the pump easily by hand (for this purpose turn
the fan of the motor or the coupling)?
- Have the latest internal/plant instructions been observed?
7.7 Mounting the pump and installation into pipework
The following instructions must be carried out:
1. Remove the protective covers from the pump flanges and the
auxiliary pipework connections.
2. Correctly insert the flange seals.
3. Connect the suction or feed line.
4. Connect the discharge line.
The pump must be aligned with the pipework.
The pipework must be supported so that distortion
cannot occur when connecting the pump.
7.8 Final work
The following final steps must be undertaken:
1. Check the tightness of the connecting flanges.
2. Check for easy running of the pump (for that purpose turn the
motor fan or the coupling).
3. Check the coupling alignment.
4. Install the coupling guard.
7.9 Hydrostatic pressure test
When subjecting the piping system to a hydrostatic pressure test,
exclude the pump from the pressure test.
If it is not possible to test the pipework without the pump, ensure that
foreign material cannot enter the pump.
NOTE : The max. permissible pressure applicable to the pump
for a pressure test is 1.3 times the nominal pump pressure.
- The nominal pump pressure is indicated in the technical data sheet.
- Water can be used for the test.
8. START-UP AND SHUT-DOWN OPERATIONS
8.1 Requirements
The pump or the pump set must be installed in accordance with the
recommendations listed in chapter 5.
8.2 Use of trained staff
Only appropriately trained staff must carry out the work described in
this chapter.
8.3 Safety measures
CAUTION!
Electrical connections must be made according to the
European Regulations and Directives for the Standards in Industry
and in compliance with the instructions of the local power supply uti-
lities of the country concerned.
Only appropriately authorised personnel may carry out this work.
WARNING!
- Fill the pump correctly; otherwise the shaft seal could be destroyed.
- Fill the supply lines correctly.
- Check the direction of rotation only when the pump is filled.
- Fill the pump slowly if hot media are being pumped in order to avoid
distortions or heat shock.
- When handling explosive, toxic, hot, crystalline or corrosive media,
ensure that there is no risk to people or the environment.
- Control the output at constant speed at the discharge side only. The
valve at the suction side must always be completely open during
operation to avoid any risk of cavitation.
- If there is no bypass line, do not run the pump with the control valve
closed for any length of time.
- Safety measures should be taken by the end user to ensure (for
example by means of a relief valve) that the permissible pump
casing pressure is not exceeded during operation.
- Repeat the alignment of the coupling at operating temperature.
Re-align the pump or the motor, if necessary.
8.4 Filling and venting the pump
Before the first use, the pump and its suction pipe must be full of liquid
to avoid any dry running.
The pump and the mechanical seal must be fully purged of gas.
CAUTION!
If the pump is purged of gas with a hot fluid, prevent any risk
of burning by containing the leakages. In case of hot water, some
steam can escape from the vent.
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