Dura 65
16 | Page
Version 1.0v-05/2021
© Verder International B.V
5.10.1 Installing the Piping
1.
Check all fasteners are tightened (
g
Appendix A).
2.
Ensure that the 1/4 turn flange is correctly indexed.
3. Remove the transport and sealing covers from the
pump.
4. Before connecting any piping to the pump; Ensure
that the hose is properly secured by running the pump
dry for 10–20 revolutions in both the directions.
5. Run the pipes in a continuous upward or downward
slope to avoid air pockets.
6.
Connect the piping.
7.
Make sure that the nozzle loadings on flanges are not
exceeded.
8. Consider the maximum nozzle loadings on flanges in the
following table:
6 Operation
6.1 Pre-commissioning the Pump
6.1.1 Checking the Direction of Rotation
with Dry Pump
[
Ensure the pump has lubricant in it.
[
Switch the motor on and check the direction of rotation;
switch immediately off again.
[
If the direction of rotation is different: swap two of the
phases (*check with electrician)
6.1.2 Starting the Pump
Risk of injury and poisoning due to pumped liquid
spraying out!
u
Use personal protective equipment when carrying out any
work on the pump.
DANGER
Equipment damage due to excess pressure!
u
Do not
operate the pump with the discharge-side fitting
closed.
u
Operate the pump only inside the tolerances specified
by the manufacturer (
g
Appendix A).
Risk of injury and poisoning due to hazardous
pumped liquids!
u
Safely collect any leaking pumped liquid and dispose of it
in accordance with environmental rules and requirements.
Checklist:
[
Pump set up and connected properly.
[
Motor set up and connected properly.
[
All connections stress-free and sealed.
[
Pump housing lubricant level correct
(
g
Appendix A).
[
All safety equipment installed and tested for functionality.
1. Close all drainage taps.
2. Open the suction-side and the discharge-side fittings.
3. Switch ON the motor and make sure it is running smoothly.
4. Run the pump, flushing with water first (cold commissioning)
to check for leaks.
5. Verify that neither the pump nor the pipe connections are
leaking.
6. Perform a second flush by running the pump, 10–20
revolutions with pumped liquid, to remove residue and
water inside the pump.
6.1.3 Switching OFF the Pump
Risk of injury due to hot pump parts!
u
Use personal protective equipment when carrying out any
work on the pump.
Risk of dead heading and hose burst due to closed
suction or discharge!
u
Keep the suction and discharge side fittings opened till the
rotor has come to a complete stop.
Equipment damage due to sediments!
u
If the pumped liquid crystallizes, polymerizes or solidifies:
–
Flush pump
–
Make sure that the flushing liquid is compatible
with the pumped liquid.
1. If necessary: Flush and empty the pump.
2. Switch off power to the motor.
3. Close the discharge side fitting.
4. Check all tie bolts and tighten them if necessary (only
after putting the pump into service for the first time).
WARNING
Note
WARNING
Pump Type
Maximum Nozzle Loadings
F1
F2, F3
M1, M2, M3
Dura 65
1500 N
1000 N
145 Nm
Figure 14 Nozzle Loadings on Flanges
Table 5 Maximum Nozzle Loadings on Flanges
DANGER
