Desmi NSLH, Operation And Maintenance Instruction

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____________________________________________________________________________________
DESMI Pumping Technology A/S
16
Tagholm 1
9400 Nørresundby – Denmark
Tel: +45 96 32 81 11 Fax: +45 98 17 54 99
E-mail:
desmi@desmi.com
www.desmi.com
If the pump liquid temperature is above 80
℃
, high-temperature grease is recommended, e.g. SKF
LGHP2.
DESMI use SKF LGHP2 as standard.
Vibration levels higher than 7 mm/s at pump bearing are considered damaging and will normally result in
significantly shorter grease and/or bearing life
– especially for pumps not running. Hence shorter re-
greasing intervals might be required for pumps installed where external excited vibration levels can be
higher than 7 mm/s.
Note that relubrication can cause a (usually temporary) bearing temperature rise of up to approx. 20 ° C -
especially by mixing different types of grease and / or by overlubricating the bearing.
Grease used for relubrication must be compatible with the grease in the bearing unit.
12. REPAIRS
12.1 ORDERING SPARE PARTS
When ordering spare parts please always state pump type, serial No. (appears on the name plate of the
pump), position No. on the assembly drawing and designation on the spare parts list.
13. OPERATING DATA
The following working pressures (pressure in piping incl. the pressure increase caused by the pump) and
number of revolutions are allowed in standard pumps.
Pump size Max.
working
pressure
[bar]
Bronze /
Cast iron
Max.
working
pressure
[bar]
SG-iron
Max. RPM
Light/heavy
bearing
housing
Pump size Max.
working
pressure
[bar]
Bronze /
Cast iron
Max.
working
pressure
[bar]
SG-iron
Max. RPM
65-215 16 25 1800/3600 150-415 9 / 13 25 1800
65-265 14.5 25 1800/3600 150-465 9 - 1800
80-330 15 25 3600/--- 150-265 10 25 1800
80-215 13 25 1800/3600 200-525 14 25 1800
80-265 14.5 25 1800/3600 200-330 7 / 13 25 1800
100-330 11 / 14 25 3000/3600 200-415 9 / 13 25 1800
100-415 10 / 12.5 25 1800/--- 200-265 10 / 12.5 25 1800
100-465 8 25 1800 250-330 7 / 12 25 1800
100-215 12.5 25 1800/3600 250-415 9 / 12 25 1800
100-265 14.5 25 1800/3600 250-525 14 25 1800
125-330 11 / 12 25 1800 300-415 9 / 12 25 1800
125-415 9 / 13 25 1800 300-418 6/16 25 1600
125-215 8 25 1800 300-525 14 25 1800
125-265 7 25 1800 350-525 -/16 25 1600
150-330 7 / 13 25 1800
Notice: Some pump combinations allow higher speeds than stated in the table
–see actual pump name plate.