Appendix; Tightening Torques; Operation With Frequency Converters - salmson Rocsan SDL Serie Notice De Montage Et De Mise En Service

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5.
Air in the system
• Check the pipelines, pressure shroud and/or
hydraulics, and vent if necessary
6.
Pump pumping against excessive pressure
• Check the slide valve in the pressure pipe and
open it completely if necessary, use a different
impeller, consult the plant
7.
Signs of wear
• Replace worn parts
8.
Faulty hose/piping
• Replace defective parts
9.
Inadmissible levels of gas in the fluid
• Contact the manufacturer
10. Two-phase operation
• Have a specialist inspect the connection and
correct it as necessary
11. Excessive decrease in the water table during
operation
• Check the supply and capacity of the system,
and inspect the level control settings and
functionality
Fault: The pump does not run smoothly and is
noisy
1.
Pump is operating in an inadmissible range
• Check the operational data of the pump and
correct if necessary and/or adjust the operating
conditions
2.
Suction port, suction strainer and/or impeller
clogged
• Clean the suction port, suction strainer and/or
impeller
3.
Macerator blocked
• Switch off the pump, secure it against being
switched back on again, clean the macerator
and correct the cutting gap if necessary
• In the event of frequent clogging, contact
Salmson customer service to have the macera-
tor replaced
4.
Inadmissible levels of gas in the fluid
• Contact the manufacturer
5.
Two-phase operation
• Have a specialist inspect the connection and
correct it as necessary
6.
Incorrect direction of rotation
• Replace two phases on the mains supply
7.
Signs of wear
• Replace worn parts
8.
Defective motor bearing
• Contact the manufacturer
9.
Pump is installed under tension
• Check installation, use expansion joints if
necessary
Fault: Mechanical seal leaks, sealing chamber
control reports a fault or switches the pump off
1.
Condensation build-up due to extended storage
and/or temperature fluctuations
• Operate the pump briefly (max. 5 min.) without
pencil electrode
2.
Increased leakage when running in new mechan-
ical shaft seals
• Change the oil
54
3.
Defective pencil electrode cables
• Replace pencil electrode
4.
Mechanical shaft seal is defective
• Replace the mechanical shaft seal and contact
the manufacturer!
Further steps for troubleshooting
If the points listed here do not rectify the fault,
contact Salmson customer service. They can help
you as follows:
• Telephone and/or written support from Salmson
customer service
• On-site support from Salmson customer service
• Inspection or repair of the pump at the factory
Please note that you may be charged for some
services provided by our customer service. For
more details, please contact Salmson customer
service.

10. Appendix

10.1. Tightening torques

Rust-free screws (A2/A4)
Thread
Nm
5.5
M5
7.5
M6
18.5
M8
37
M10
57
M12
135
M16
230
M20
285
M24
415
M27
565
M30
Geomet-coated screws (strength 10.9) with Nord-Lock
washer
Thread
Nm
9.2
M5
15
M6
36.8
M8
73.6
M10
126.5
M12
155
M16
265
M20

10.2. Operation with frequency converters

Any standard motor conforming to IEC 60034-17
can be used. If the rated voltage is above
415 V/50 Hz or 480 V/60 Hz, you must consult
the manufacturer. Because of the additional
heating caused by harmonics, the rated power of
Wilo Salmson France SAS 11-2016 V05 DIN A4
APPENDIX
Tightening torque
kp m
0.56
0.76
1.89
3.77
5.81
13.76
23.45
29.05
42.30
57.59
Tightening torque
kp m
0.94
1.53
3.75
7.50
12.90
15.84
27.08

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Rocsan sdl ge03.25/p-t15-2-540x/p

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