Dewatering Pumps ( Polder Pumps )











RANGE:
Q  Upto 1380 Cubic Mtrs/hr.
H  Upto 100 Mtrs.
N  1450/2900 RPM

          

APPLICATIONS OF DEWATERING PUMPS ( POLDER PUMPS ) :
Dewatering from river bed, canal etc. Lift Irrigation, cooling water supply, storm water pumping stations, retention reservoirs, Industrial waste water supply, flood prevention  pumping stations, dewatering of mines, industrial and public water supply schemes, etc.

ADVANTAGES OF DEWATERING PUMPS ( POLDER PUMPS ) :

  • To bring down the heavy cost of repairs, Calama Dewatering Pumps are designed to work virtually maintenance free, incorporating lubricated bearings.

  • Our Pumps are designed to properly function at virtually any depth of water for any period of time.

  • The cost of installing Calama Dewatering Pumps is considerably less than a conventional Pump for various reasons including the non-requirement of a Pump House.

  • Calama Dewatering Pumps are designed to be sturdy and robust with a proven and winning design offering a desired performance.

  • Calama Dewatering Pumps are easy to install & assemble.

DESIGN OF DEWATERING PUMPS ( POLDER PUMPS ) :
Calama Polder pumpsets are single / two stage centrifugal pump with impellers of mixed flow design. The water to be lifted flows through a passage tube and is pumped around the motor and up into the discharge main. The motor is a wet type water filled submersible motor, robust in design and light in weight. Motor cooling is done by delivery liquid ensuring long life by the jacketted construction.
Mechanical seal is provided to prevent entry of muddy and sandy water into the motor. Axial thrust is controlled by adequate thrust bearing.
Calama Polder  pump offers a wide range of models for lifting water from  6-90 mts. and a discharge of 800 to 18000 LPM. These pumps can take turbidity upto 10000 ppm and handle Maximum particale size upto 8 mm.

 

MATERIALS OF DEWATERING PUMPS ( POLDER PUMPS )

 Pump Bowl/ Housing

CI
 Pump/ Motor Shaft SS 
 Motor Housing CI
 Impeller Bronze
 Suction Casing CI
 Discharge Casing CI
 Bearing Sleeves SS431
 SS = Stainless Steel, CI = Cast Iron
 Note: Special construction material on request

SELECTION CHART OF DEWATERING PUMPS ( POLDER PUMPS )

PUMP 
TYPE
DISCHARGE
RANGE
HEAD
RANGE
MOTOR
RATING
MAX
OD
SPEED DELIVERY
PIPE SIZE
  LPM MTRS HP MM RPM MM
P10P
Q8P
Q10P
Q12P
K18P
K30P
830-3335
700-2800
1000-7500
3000-9750
2000-8500
5000-18000
22.5-72
6-40
10-60
18-90
6-38
10-54
25-50
7.5-20
20-85
85-170
30-60
60-180
365
365
365
440
440
670
2900
2900
2900
2900
1450
1450
200
200
200
200
200
300

To view the Family Curve of DEWATERING PUMPS ( POLDER PUMPS )  click here