Wilo Inlet Brochure.qxd
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Application and use
Economical solution
For more than 5 decades EMU has
developed and manufactured submersible
motor pumps for water supply
, control of
water level and booster plants.
The latest product of our program is the
WILO-EMU Intake Submersible Pump
which has the technical advantages of a
submersible motor pump combined with the
application possibilities of a shaft pump.
The pump is especially designed for the
application in water treatment and irrigation
plants, in mining and civil engineering, with
Off-Shore plants, for pumping low water
levels and as replacement for old, ineffective
shaft pumping stations.
The special features of this pump are the
high efficiency, reliability, long service life and
no maintenance.
Simple and cost effective installation also
with older stations because the pump is
directly flanged to the existing pipeline.
Because the motor is continously
submerged in the pumped liquid, a safe
operation of the pump is guaranteed.
The WILO-EMU Intake Submersible Pump
can be delivered with special material
designs - in standard design as well as in
corrosion-free design for polluted or
contaminated water
.
The duty range of our pumps lies between
a capacity of 600 gpm to 4400 gpm and 66
feet to 325 feet.
Application and use
- Off-Shore for the application in
secondary deballast systems
- Mining for seeping and process water
,
for lowering of water level and
contaminated water
- Dewatering of dams and polders
- Irrigation of lakes and rivers with low
water levels
- Simple modernization and replacement
of old shaft pumping stations
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Function and working method
Function
The structure is equivalent to an inverted
submersible motor pump with pump
component and intake strainer in the lower
section and submersible motor above the
pump component.
The intake is effected over a suction
strainer and an integrated intake funnel
with antivortex plate.
As a result, a very low water level can be
achieved. The one-stage or multi-stage
pump component is sealed by a double
mechanical shaft seal from the submersible motor.
In the outer shroud the pumped liquid
circulates around the complete motor.
The discharge piece is located at the
upper end.
A differential tank for the motor filling can
be provided.
The pump can be executed in our usual
material designs A, C and in our special
design D.
Power supply cable
Discharge piece
Upper bearing
Winding
Pump shroud
Lower bearing
Winding
Stator shroud
Axial thrust bearing set
Intermediate piece
Mechanical shaft seal
Shaft
End guide casing
Impeller
Suction port
Strainer
Advantages over shaft pumps
Advantages
- Low water level through bottom intake
- Very good motor cooling by submerged
motor shroud
- High safety by double mechanical shaft
seal
- Designs for water temperatures of
20 - 40 (PVC or PE 2-winding)
- Perfect lubrication of thrust bearings
by high water cover in the motor
- Hydro firm and NSSHÖU-cable possible
for high loads
- Motor filling of clear drinking water or
EMU-filling possible
- Motor filling can be checked via filling
level vessel
- Insensitive to moisture and flood,
no building construction
- No shafts, therefore low wear and
no maintenance
- Robust and compact design
- Simple pipeline installation
- Good efficiencies, modern technique
through reliable WILO-EMU-quality
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Technical information
Material designs
Parts
Standard design A
Special design C
Suction port, pump casing,
intermediate piece, discharge piece,
seal housing
Cast iron GG
Bronze G- Cu Sn1
Lower motor housing
Cast iron GG
Impeller
Bronze G- Cu Sn5 Zn
Multiple bronze 2.0975
Stator shroud
Steel with protection paint
+ Cr- steel 1.4301
Bronze G-CuSn10
Pump shaft
Cr- steel 1.4057
Cr Ni Mo- steel 1.4462
Screwed connections
Cr Ni- steel A2
Cr Ni Mo- steel A4
Shroud
Steel with protection paint
Cr Ni Mo- steel 1.4571
Cast iron GG
[bar]
[feet]
22
60 Hz
700
20
650
600
18
550
16
500
K126 P
14
450
400
12
350
KM 150 P
10
D500 P
300
8
250
200
6
DCH 980
150
4
100
K146 P
2
50
K127 P
0
0
10
12
40
14
16
18 20
60
200
25
30
80
300
35
40
50
150
400
WILO USA LLC
1290 N 25th Avenue
Melrose Park, IL 60160
ph 1-866-WILO-USA (945-6872)
www.WILO-NA.com
500
US - GPM
60
200
70
80
90 100
300
1000
120
400
1500
140 160
500
2000
200
600 m3 /h 800
2500
3000
250
l/ s
1000
4000
WILO Canada Inc
Bay 7, 2915 10th Avenue N.E.
Calgary, Alberta T2A 5L4
ph 1-866-WILO-CDN (945-6236)
www.WILO-NA.com