DESMI Vertical "In-Line" Centrifugal Pump: NSL Spacer
DESMI Vertical "In-Line" Centrifugal Pump: NSL Spacer
DESMI Vertical "In-Line" Centrifugal Pump: NSL Spacer
Manual:
T1379
+45 96 32 81 11
+45 98 17 54 99
desmi@desmi.com
www.desmi.com
Language
: English
Revision:
M (04/13)
Table of Contents:
DESMI VERTICAL "IN-LINE" CENTRIFUGAL PUMP .............................................................................................. 1
1. PRODUCT DESCRIPTION ............................................................................................................................... 1
1.1 DELIVERY .............................................................................................................................................................1
2. TECHNICAL DATA ......................................................................................................................................... 1
2.1 EXPLANATION OF THE TYPE NUMBER .................................................................................................................1
2.2 TECHNICAL DESCRIPTION ....................................................................................................................................2
3.INSTALLATION 3.1 MOUNTING/FASTENING ................................................................................................... 4
3.2 WIRING ................................................................................................................................................................4
4. TRANSPORT/STORAGE ................................................................................................................................. 4
5.DISMANTLING 5.1 ACCESS TO IMPELLER ....................................................................................................... 5
5.2 DISMANTLING SHAFT SEAL ..................................................................................................................................6
5.3 DISMANTLING SEAT .............................................................................................................................................6
5.4 DISMANTLING SHAFT WITH BEARINGS ...............................................................................................................6
5.5 INSPECTION .........................................................................................................................................................6
6. ASSEMBLING ................................................................................................................................................ 6
6.1 FITTING SEALING RINGS.......................................................................................................................................6
6.2 FITTING SHAFT WITH BEARINGS ..........................................................................................................................6
6.3 FITTING WATER DEFLECTOR ................................................................................................................................7
6.4 FITTING SHAFT SEAL ............................................................................................................................................7
6.5 FITTING IMPELLER ...............................................................................................................................................7
6.6 FITTING BEARING HOUSING AND SHAFT SEAL COVER .........................................................................................7
6.7 SHAFT ..................................................................................................................................................................7
6.8 FITTING COUPLING ..............................................................................................................................................8
7. FROST PROTECTION ..................................................................................................................................... 9
8. DISMANTLING .............................................................................................................................................. 9
9. START-UP..................................................................................................................................................... 9
9.1 STARTING ............................................................................................................................................................9
10. SYSTEM BALANCING ................................................................................................................................... 9
11. INSPECTION AND MAINTENANCE ............................................................................................................. 11
11.1 DRAINING THE PUMP ......................................................................................................................................11
11.2 BEARINGS ........................................................................................................................................................11
12. REPAIRS ................................................................................................................................................... 13
12.1 ORDERING SPARE PARTS .................................................................................................................................13
13. OPERATING DATA .................................................................................................................................... 13
14. EU DECLARATION OF CONFORMITY .......................................................................................................... 14
15. ASSEMBLY DRAWING AND SPARE PARTS LIST 215/265 ........................................................................... 15
16. ASSEMBLY DRAWING AND SPARE PARTS LIST 330/415/525 .................................................................... 16
__________________________________________________________________________________
DESMI Pumping Technology A/S
Tagholm 1
9400 Nrresundby Denmark
Tel: +45 96 32 81 11 Fax: +45 98 17 54 99
E-mail: desmi@desmi.com
www.desmi.com
__________________________________________________________________________________
DESMI Pumping Technology A/S
Tagholm 1
9400 Nrresundby Denmark
Tel: +45 96 32 81 11 Fax: +45 98 17 54 99
E-mail: desmi@desmi.com
www.desmi.com
1. PRODUCT DESCRIPTION
These operation and maintenance instructions apply to the DESMI NSL Spacer pump.
The pump is a single-stage vertical "in-line" centrifugal pump (i.e. horizontal inlet and outlet on the same
line) equipped with stainless steel shaft, mechanical shaft seal, and closed impeller.
The pump is suitable for the pumping of liquids with temperatures up to 80oC. With special shaft seal up
to 120oC. Max. working pressure and number of revolutions are indicated under Operating Data.
The pump is particularly suitable for the pumping of water in connection with cooling systems, cooling of
diesel engines, as bilge pumps, ballast pumps, fire pumps, brine pumps, pumps for irrigation, fish farms,
water works, district heating, salvage corps, army and navy, etc.
The descriptions in the operation and maintenance instructions are divided into two parts covering the
groups 215/265 and 330/415/525, as the designs of these two groups are different. The numbers refer
to the standard impeller diameter of the pump. E.g.:
215/265: Pumps with 215 or 265 impellers:
The back of the impeller is equipped with relief blades to reduce the load on the bearings. The line through
inlet and outlet is flush with the centre line of the shaft.
330/415/525: Pumps with 330, 415 or 525 impellers:
The back and the front of the impeller are equipped with sealing rings and relief holes to reduce the load
on the bearings. The pump inlet and outlet are tangential i.e. the line through inlet and outlet is offset in
relation to the centre line of the shaft.
1.1 DELIVERY
- Check on delivery that the shipment is complete and undamaged.
- Defects and damages, if any, to be reported to the carrier and the supplier
immediately in order that a claim can be advanced.
2. TECHNICAL DATA
The pumps are manufactured in various material combinations which appear from the type number on the
name plate. See below.
2.1 EXPLANATION OF THE TYPE NUMBER
All the NSL pumps are provided with a name plate. The type number indicated on the name plate is built
up as follows:
NSLXXX-YYY-MR-Z
XXX: Pressure branch diameter, YYY: Standard impeller diameter
M: The material combination of the pump.
R: The assembly combination of the pump.
Z: Other variants
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DESMI Pumping Technology A/S
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Tagholm 1
9400 Nrresundby Denmark
Tel: +45 96 32 81 11 Fax: +45 98 17 54 99
E-mail: desmi@desmi.com
www.desmi.com
:
:
:
:
Fy
N
Fz
N
Fx
N
NSL80-215
NSL80-265
NSL80-330
800
950
850
NSL100-215
NSL100-265
NSL100-330
NSL100-415
1000
1250
NSL125-215
NSL125-265
NSL125-330
NSL125-415
1250
NSL150-215
NSL150-265
NSL150-330
NSL150-415
NSL200-265
NSL200-330
NSL200-415
NSL200-525
NSL250-265
NSL250-330
NSL250-415
NSL250-525
NSL300-415
NSL300-525
Pump
My
Nm
Mz
Nm
Mx
Nm
Mt
1500
550
350
400
750
1150
2000
650
400
500
900
1600
1430
2500
830
520
650
1160
1500
1900
1700
2950
1000
650
800
1400
2000
2520
2260
3920
1330
860
1060
1860
2500
3150
2820
4900
1770
1140
1400
2470
3000
3750
3350
5860
2750
1900
2200
4000
In connection with the permissible loads on the flanges the following is to be observed:
F calc M calc
+
2
F M t
3.INSTALLATION
3.1 MOUNTING/FASTENING
The pump should be mounted and fastened on a solid base plate with a flat and horizontal surface to avoid
distortion.
The max. permissible loads on the flanges stated in paragraph 2.2 are to be observed.
At installations pumping hot or very cold liquids, the operator must be aware that it is dangerous
to touch the pump surface and, consequently, he must take the necessary safety measures.
3.2 WIRING
Wiring to be carried out by authorised skilled workmen according to the rules and regulations in
force.
4. TRANSPORT/STORAGE
The weights of the pumps in A and D combination (without motor) are stated in the following table, and
the pumps are to be lifted as shown below.
Pump
NSL80-215
NSL80-265
NSL80-330
NSL100-215
NSL100-265
NSL100-330
NSL100-415
NSL125-215
NSL125-265
NSL125-330
NSL125-415
NSL150-215
NSL150-265
Weight in kg
A / D-combination
incl. base plate
186 / 201
195 / 212
301 / 306
197 / 214
196 / 213
311 / 317
404 / 424
208 / 223
214 / 235
326 / 332
439 / 459
227 / 251
232 / 257
Pump
NSL150-330
NSL150-415
NSL200-265
NSL200-330
NSL200-415
NSL200-525
NSL250-265
NSL250-330
NSL250-415
NSL250-525
NSL300-415
NSL300-525
Weight in kg
A / D-combination
incl. base plate
389 / 379
479 / 499
267 / 300
459 / 444
579 / 599
829 / 919
346 / 386
539 / 529
659 / 664
939 / 1054
759 / 759
1000 / 1135
____________________________________________________________________________________
DESMI Pumping Technology A/S
4
Tagholm 1
9400 Nrresundby Denmark
Tel: +45 96 32 81 11 Fax: +45 98 17 54 99
E-mail: desmi@desmi.com
www.desmi.com
The
lifting straps must not bear against sharp edges and corners.
5.DISMANTLING
5.1 ACCESS TO IMPELLER
The numbers in brackets refer to the position numbers on the assembly drawing.
Dismantle guard (69).
215/265
Remove Allen screws (77) between coupling part motor (71) and spacer (72) and the screws (76), which
hold the flexible coupling (74) to the coupling part pump (70). It is not necessary to remove the screws
(also 76) which hold the flexible coupling to the spacer. After a vertical pull downwards take out the spacer
(72). Loosen the pointed screw (73) and pull the coupling part pump (70) off the shaft. Dismantle the
copper pipe (58). Remove Allen screws (22) which hold the shaft seal cover (20) to the pump casing.
Remove the shaft seal cover from the pump casing by means of the pointed screws (86). The bearing
housing with shaft and impeller can now be lifted up from the pump as a unit, and the impeller can be
inspected.
330/415/525
Remove Allen screws (76) at each end of the coupling, and remove the spacer (72). Loosen the pointed
screw (73) and pull the coupling part pump (70) off the shaft. Dismantle the copper pipe (58). Remove set
screws (22) with washers (23) which hold the shaft seal cover to the pump casing. Remove the shaft seal
cover from the pump casing by means of the pointed screws (86) The shaft seal cover and the bearing
housing with shaft and impeller can now be lifted up from the pump as a unit, and the impeller can be
inspected.
____________________________________________________________________________________
DESMI Pumping Technology A/S
5
Tagholm 1
9400 Nrresundby Denmark
Tel: +45 96 32 81 11 Fax: +45 98 17 54 99
E-mail: desmi@desmi.com
www.desmi.com
5.5 INSPECTION
When the pump has been dismantled, check the following parts for wear and damage:
- Sealing rings/impeller:
- Shaft seal/shaft seal cover:
- Bearings:
6. ASSEMBLING
6.1 FITTING SEALING RINGS
When fitted, the sealing ring (4) in the pump casing (1) is to bear against the shoulder of the pump casing.
330/415/525
When fitted, the sealing ring (27) in the shaft seal cover (20) is to bear against the shoulder of the shaft
seal cover.
6.2 FITTING SHAFT WITH BEARINGS
Lead shaft with bearings into the bearing housing. Fit sunk key (16).
330/415/525
Fit cover under bearing (26).
____________________________________________________________________________________
DESMI Pumping Technology A/S
6
Tagholm 1
9400 Nrresundby Denmark
Tel: +45 96 32 81 11 Fax: +45 98 17 54 99
E-mail: desmi@desmi.com
www.desmi.com
____________________________________________________________________________________
DESMI Pumping Technology A/S
7
Tagholm 1
9400 Nrresundby Denmark
Tel: +45 96 32 81 11 Fax: +45 98 17 54 99
E-mail: desmi@desmi.com
www.desmi.com
Torque
25 Nm
50 Nm
90 Nm
140 Nm
Coupling element
V1700-0832
V1700-1042
V1700-1242
V1700-1442
Distance
4 mm
4 mm
6 mm
6 mm
330/415/525
Check Allen screws (76) and coupling bushes (74) for damage and clean these with a cloth. Replace them
in case of damage.
Remove grease from the screw threads by means of benzene, and clean the threaded holes in the coupling
halves for pump and motor by means of pressure air. If new coupling halves are mounted, also remove
grease from the threaded holes by means of benzene.
Place coupling bushes (74) in the top holes of the spacer (72), the chamfering on the bushes is to face
downwards. Place the coupling bush in the bottom holes of the spacer, the chamfering on the bushes is
to face upwards. Hold the hand under the spacer and the bottom coupling bushes and carefully push the
spacer into place.
Apply Loctite type 242 on the Allen screws (Loctite 242 is recommended as it will allow dismantling) and
tighten all screws with the hand. It might be necessary to push the spacer a little until the screws have
located in the thread and you feel that the spacer has found the right position.
Tighten the screws with a torque wrench at 55 Nm. As motor/pump shaft will rotate during this operation it
is necessary to hold the spacer by wedging a pin bolt, a piece of flat bar or the like between the two
following screw heads in order to lock the system while the screws are tightened.
Fit guard (69).
____________________________________________________________________________________
DESMI Pumping Technology A/S
8
Tagholm 1
9400 Nrresundby Denmark
Tel: +45 96 32 81 11 Fax: +45 98 17 54 99
E-mail: desmi@desmi.com
www.desmi.com
7. FROST PROTECTION
Pumps that are not in operation during frost periods are to be drained to avoid frost damage. Remove the
plug (3) at the bottom to empty the pump. Alternatively, it is possible to use anti-freeze liquids in normal
constructions.
8. DISMANTLING
Before dismantling the pump make sure that it has stopped. Empty the pump of liquid before
it is dismantled from the piping system. If the pump has been pumping dangerous
liquids you are to be aware of this and take the necessary safety measures.
If the pump has been pumping hot liquids, take great care that it is drained before it is
removed from the piping system.
9. START-UP
A centrifugal pump will not function until it has been filled with liquid between the foot valve
and somewhat above the impeller of the pump.
The liquid also serves as coolant for the shaft seal. In order to protect the shaft seal the
pump must not run dry.
ATTENTION
For safety reasons the pump is only allowed to operate against closed suction and discharge valves for a
short time (max. 5-10 minutes and at a max. temperature of 130oC). Otherwise there is a risk of damage
to the pump and, at worst, of a steam explosion. If the pump is not manually observed, the installation of
a safety device is recommended.
9.1 STARTING
Before starting the pump check that:
- the shaft rotates freely without jarring sounds.
- the pump casing and the suction line are filled with liquid.
Start the pump for a moment to check the direction of rotation. If the direction is correct (i.e. in the direction
of the arrow) the pump may be started.
10. SYSTEM BALANCING
It is often difficult to calculate a manometric delivery head in advance. It is, however, decisively important
to the quantity of liquid delivered.
A considerably smaller delivery head than expected will increase the quantity of liquid delivered, causing
increased power consumption and perhaps cavitation in pump and piping. In the pump the impeller may
show signs of heavy erosion caused by cavitation (corrosion) which may at times render an impeller unfit
for use in a very short time. Not unusually do similar erosions occur in pipe bends and valves elsewhere
in the piping system.
Therefore, after start-up, it is necessary to check either the quantity of liquid delivered or the power
consumption of the pump e.g. by measuring the current intensity of the connected motor. Together with a
____________________________________________________________________________________
DESMI Pumping Technology A/S
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Tagholm 1
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Tel: +45 96 32 81 11 Fax: +45 98 17 54 99
E-mail: desmi@desmi.com
www.desmi.com
reading of the differential pressure the quantity of water delivered can be determined against the
characteristics of the pump.
Should the pump not function as intended, please proceed according to the fault-finding list. Bear in mind,
though, that the pump was carefully checked and tested at the factory and that the majority of faults stem
from the piping system.
FAULT
The pump has no or
too low capacity
CAUSE
1. Wrong direction of
rotation
1. Counter-pressure too
low
2. The liquid is heavier
than water
3. Foreign body in pump
4. Electric motor is
running on 2 phases
1. Cavitation in pump
REMEDY
Change direction of
rotation to clockwise when
viewed from shaft end (the
direction of the arrow)
Clean or replace
Clean the pump
Find the leakage, repair
the fault, non-return valve
not submerged
Check data sheet Q/H
curve and NPSH or contact
DESMI
As 5
____________________________________________________________________________________
DESMI Pumping Technology A/S
10
Tagholm 1
9400 Nrresundby Denmark
Tel: +45 96 32 81 11 Fax: +45 98 17 54 99
E-mail: desmi@desmi.com
www.desmi.com
____________________________________________________________________________________
DESMI Pumping Technology A/S
11
Tagholm 1
9400 Nrresundby Denmark
Tel: +45 96 32 81 11 Fax: +45 98 17 54 99
E-mail: desmi@desmi.com
www.desmi.com
Pump
Assembly
Interval
Quantity
Bottom
bearing (13)
Quantity
Top bearing
(15)
215/265
Light bearing
housing
40 g
Lubricated for
life
215/265
Heavy bearing
housing
8000 hours
65 g
Lubricated for
life
NSL80-330
NSL100-330
NSL125-330
NSL100-415
NSL125-415
Light bearing
housing
4500 hours
30 g
15 g
NSL150-330
NSL200-330
NSL250-330
NSL150-415
Heavy bearing
housing
4500 hours
40 g
20 g
NSL200-415
NSL250-415
NSL300-415
Heavy bearing
housing
4500 hours
50 g
25 g
NSL200-525
NSL250-525
NSL300-525
Heavy bearing
housing
4500 hours
80 g
35 g
Beacon 2
BP
Energrease EP grease 2
Shell
Alvania grease 2
Mobil
Castrol
Spherol AP 2
Texaco
Multifak EP 2
Q8
Statoil
Statoil Uniway u2
-temperature grease is recommended, e.g. SKF
LGHP2.
____________________________________________________________________________________
DESMI Pumping Technology A/S
12
Tagholm 1
9400 Nrresundby Denmark
Tel: +45 96 32 81 11 Fax: +45 98 17 54 99
E-mail: desmi@desmi.com
www.desmi.com
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. 215 pumps with frame size 280 motors and 265
pumps with frame size 315 motor are only available in combination 15 (fire bracket).
Pump
NSL80-215
NSL80-265
NSL80-330
NSL100-215
NSL100-265
NSL100-330
NSL100-415
NSL125-215
NSL125-265
NSL125-330
NSL125-415
NSL150-215
NSL150-265
Max.
working
pressure
[bar]
Bronze /
Cast iron
Max.
working
pressure
[bar]
SG-iron
Max.
RPM
Light / heavy
bearing
housing
16
14.5
15 / 15
13
14,5
8 / 14
10 / 12.5
10
14,5
7 / 12
9 / 13
8
7
32
29
30
26
29
29
25
20
29
25
26
16
14
1800 / 3600
1800 / 3600
3600 / ----1800 / 3600
1800 / 3600
1800 / ----1800 / ----1800 / 3600
1800 / 3600
1800 / ----1800 / ----1800
1800
Pump
NSL150-330
NSL150-415
NSL200-265
NSL200-330
NSL200-415
NSL200-525
NSL250-265
NSL250-330
NSL250-415
NSL250-525
NSL300-415
NSL300-525
Max.
working
pressure
[bar]
Bronze /
Cast iron
Max.
working
pressure
[bar]
SG-iron
7 / 13
9 / 13
9
7 / 13
9 / 13
14
10 / 10
7 / 12
9 / 12
14
9 / 12
14
27
26
18
26
26
25
20
25
25
25
25
25
Max.
RPM
1800
1800
1800
1800
1800
1800
1800
1800
1800
1800
1800
1800
The above-mentioned max. working pressure is NOT valid for pumps approved by a classification
society. Pumps approved by classification societies have been pressure tested according to the
requirements of these societies, i.e. a test pressure of 1.5 x the permissible working pressure. The test
pressure is stated in the test certificate and stamped into the discharge flange of the pump.
____________________________________________________________________________________
DESMI Pumping Technology A/S
13
Tagholm 1
9400 Nrresundby Denmark
Tel: +45 96 32 81 11 Fax: +45 98 17 54 99
E-mail: desmi@desmi.com
www.desmi.com
____________________________________________________________________________________
DESMI Pumping Technology A/S
14
Tagholm 1
9400 Nrresundby Denmark
Tel: +45 96 32 81 11 Fax: +45 98 17 54 99
E-mail: desmi@desmi.com
www.desmi.com
71
60
73
63
96
77
97
109
79
99
72
100
76
101
74
106
73
97
70
98
84
67
17
69
16
19
15
12
18
103
11
14
64
13
22
86
58
98
OPTION
110
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
58
59
60
63
64
67
69
70
71
72
73
74
76
77
79
81
84
86
93
94
95
96
97
98
99
100
101
103
106
107
109
110
Pump casing
Pipe plug
Pige plug
Sealing ring
Impeller
Nut
Spring collar
Washer
Sunk key
Mech. shaft seal
Water deflector
Ring lock
Ball bearing
Support disc
Ball bearing
Sunk key
Shaft
Bearing housing
Allen screw
Shaft seal cover
O-ring
Allen screw
Copper pipe
Hexagon nipple
Set screw
Bracket
Set screw
Set screw
Guard
Coupling part pump
Coupling part motor
Spacer
Pointed screw
Elastomer
Allen screw
Allen screw
Nut
Sealing washer
Lubricator nipple *)
Pointed screw
Set screw
Base plate
Lock washer
Manometer
Reducing nipple
Haxagon nipple
T-piece
Bulkhead connection
Screw cap
Copper pipe
Manometer cock
Pipe plug
Set screw
Manometer fitting
*) 84 only combination 14
2
59
107
59 3 81 20 1
7 8 10 21
93 95 94
OPTION
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Tagholm 1
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Tel: +45 96 32 81 11 Fax: +45 98 17 54 99
E-mail: desmi@desmi.com
www.desmi.com
____________________________________________________________________________________
DESMI Pumping Technology A/S
16
Tagholm 1
9400 Nrresundby Denmark
Tel: +45 96 32 81 11 Fax: +45 98 17 54 99
E-mail: desmi@desmi.com
www.desmi.com
h1
h2
L1
DN
d2
B1
NSL80-215
868
200
155
530
265
163
80
200
18
160
20
306
25
350
175
NSL80-265
900
200
155
580
290
193
80
200
18
160
20
306
25
350
175
NSL100-215
889
200
155
580
290
181
100
220
18
180
20
306
25
350
175
NSL100-265
920
200
155
630
315
193
100
220
18
180
20
306
25
350
175
NSL125-215
902
200
155
630
315
203
125
250
18
210
20
306
25
350
175
NSL125-265
943
200
155
680
340
227
125
250
18
210
20
306
25
350
175
NSL150-215
938
230
185
680
340
239
150
285
22
240
20
306
25
350
175
NSL150-265
967
200
155
730
365
250
150
285
22
240
20
306
25
350
175
NSL200-265
1008
260
215
780
390
290
200
340
23
295
20
306
25
350
175
NSL250-265
1035
260
215
800
400
324
250
405
22
350
20
306
25
350
175
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Tel: +45 96 32 81 11 Fax: +45 98 17 54 99
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www.desmi.com
B1
B1
25
B1
PRESSURE GAUGES
(OPTIONAL)
4xMX
PCD Y
DEPTH Z
B1
25
B
25
L1
L1
PCD ks
PCD kd
h2
DELIVERY
h1
SUCTION
40
BASE PLATE
(OPTIONAL)
h1
h2
L1
Ds
Dd
Ds
Dd
A-
A-
D-
D-
DNs
DNd
ks
kd
NSL80-330
1079
260
215
600
300
250
235
200
220
200
100
80
180
160
NSL100-330
1084
260
215
650
325
250
270
235
250
220
125
100
210
180
NSL100-415
1107
260
215
700
350
275
270
235
250
220
125
100
210
180
NSL125-330
1130
300
255
700
350
250
300
270
285
250
150
125
240
210
NSL125-415
1145
300
255
750
375
278
300
270
285
250
150
125
240
210
NSL150-330
1140
300
255
750
350
275
360
300
340
285
200
150
295
240
NSL150-415
1191
340
295
800
400
293
360
300
340
285
200
150
295
240
NSL200-330
1183
340
295
900
450
301
425
360
395
340
250
200
350
295
NSL200-415
1241
340
295
900
450
308
425
360
395
340
250
200
350
295
NSL200-525
1515
380
335
900
450
395
425
36+
425
360
250
200
350
295
NSL250-330
1230
380
335
1000
500
327
485
425
445
395
300
250
400
350
NSL250-415
1283
380
335
1000
500
355
485
425
445
395
300
250
400
350
____________________________________________________________________________________
DESMI Pumping Technology A/S
18
Tagholm 1
9400 Nrresundby Denmark
Tel: +45 96 32 81 11 Fax: +45 98 17 54 99
E-mail: desmi@desmi.com
www.desmi.com
NSL250-525
1525
390
345
1100
550
390
485
425
445
395
300
250
400
350
NSL300-415
1329
420
375
1200
600
377
555
485
505
445
350
300
460
400
NSL300-525
1570
435
390
1200
600
419
555
485
555
485
350
300
460
400
Type
d2s
d2d
As
Ad
B1
NSL80-330
18
18
20
306
25
350
175
200
NSL100-330
18
18
20
306
25
350
175
210
NSL100-415
18
18
20
450
25
500
250
250
NSL125-330
22
18
20
306
25
350
175
225
NSL125-415
22
18
20
450
25
500
250
260
NSL150-330
22
22
20
450
25
500
250
235
NSL150-415
22
22
20
450
25
500
250
275
NSL200-330
22
22
12
20
450
25
500
250
260
NSL200-415
22
22
12
24
560
28
500
250
285
NSL200-525
22
22
12
24
560
28
500
250
330
NSL250-330
22
22
12
12
24
560
28
500
250
275
NSL250-415
22
22
12
12
24
560
28
500
250
305
NSL250-525
22
22
12
12
24
560
28
500
250
340
NSL300-415
22
22
16
12
24
560
28
500
250
320
500
250
365
NSL300-525
22
22
16
12
24
560
28
____________________________________________________________________________________
DESMI Pumping Technology A/S
19
Tagholm 1
9400 Nrresundby Denmark
Tel: +45 96 32 81 11 Fax: +45 98 17 54 99
E-mail: desmi@desmi.com
www.desmi.com