Submersible motor pumps (100 mm)
1
1 General
Submersible motor pumps by KSB have been developed in
accordance with state-of-the-art of design and manufacturing
technology with extreme care and rigid quality control. The manual
contains important information for reliable operation of pump.
The special feature of these submersible pumps is installation in
narrow deep wells to pump clean water for various applications
like water supply system, irrigation sprinkling systems, ground
water lowering, pressure boosting, fountains etc.
For any additional information or instructions please contact KSB’s
nearest office.
1.1 Safety of pumping unit
This operating manual contains fundamental installation,
operation and maintenance instructions. Hence this must be
clearly understood by concerned people, prior to installation. The
booklet must always be located for easy access at site.
1.1.1 Checks & Safety of pumping unit
Check for any transit damage. After unpacking inspect the pump-
motor for any signs of shaft deflection and for the damage of the
lead cable.
This operating manual does not take into account any safety
regulations those may apply. It’s a pump operator’s responsibility
that any such regulations are adhered to.
1.1.2 Instructions on unit (Printed matter)
Follow the instructions attached on the motor / pump e.g.
- Arrow indicating the direction of rotation
- Various plugs for water connections viz. filling, venting, draining
etc. on motor
1.1.3 For unauthorized spare part and modifications
Modifications or alterations of the equipment supplied are strictly
not permitted. Original spare parts and accessories authorized
by the manufacturer ensure safety. The use of spurious parts
invalidates any liability of the manufacturer for consequential
damage.
1.1.4 For unauthorized modes of operation
The warranty related to the operation reliability and safety of the
unit supplied is valid only if the equipment is operated according
to designated parameters. The operating limits should not differ
from the limits specified on the nameplate.
1.1.5 Water characteristics
Submersible pumps are designed for handling clean or slightly
contaminated water with the following main characteristics : (As
per IS 8034 : 2002)
a) Turbidity : 50 ppm*, Max. (Silica scale)
b) Chlorides : 500 ppm*, Max.
c) Total Solids : 3000 ppm*, Max
d) pH value : 6.5 to 8.5
e) Temperature : 33
0
C, Max
f) Specific gravity : 1.004
g) Hardness : 300, Max (Drinking water)
* ppm – parts per million
1.2 Description of Product
1.2.1 Designation (example) of pump
CORA 100 4 C / 7
Type series
Min. well diameter in mm
(100 mm ~ 4 inches)
Capacity for 50 Hz (in m
3
/hr.)
Design status
No. of stages
1.2.2 Designation (example) of motor
UMA / XUMA I (S) 100 - 0.8 / 2 1
Type series
Design variant
Single Phase
Min. well diameter in mm
(100 mm ~ 4 inches)
Electrical reference no.
No. of pair of poles
Winding wire insulation
2 Installation
2.1 Installation and operational accessories
The motor is supplied with a 3 meter long, 3 core waterproof
cable.
The following accessories are necessary for installation and
commissioning :
• A cable with vulcanizing rubber compound (which is normally
used for repairing the punctures in automobiles) and electric
insulation PVC tapes.
• Control panel
• 2 pairs of supporting or installation clamps for vertical
installation and 1 set of stands for horizontal installation.
• Overload trip unit, water level guard, single-phase preventor
(for 3 phase motor).
2.2 Motor preparations
2.2.1 Motor fill
For filling the motor with pure cold drinking water, follow the
procedure given below :
• Place the motor vertically up.
• Remove the two plugs provided at the top of the motor (Here
one plug is provided to escape the air and another for filling
the water).
• Fill the motor completely with pure water having no impurities
(Do not use distilled water).
• After filling the motor let it stand for 30 minutes and rotate the
rotor by hand to accelerate the escape of trapped air.
• At the same time pour more water to fill the loss of volume
caused by the escaped air bubbles.
• Refit the plugs.
• Check the motor completely for any leakages of water.
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