Submersible motor pumps DN 40 to DN 350
Cast iron and various materials for industrial effluents
Motor ratings up to 175 kW.
50 Hz
standard range
Stationary installation
Transportable installation
Designs incorporating features
which are out side the
documented standards must
comply with the appropriate
conditions of application which
will be provided upon request.
1.0 Applications
KRT submersible motor pumps are used for pumping all types
of sewage and effluent in water treatment and industry,
especially untreated sewage with long fibrous and solid
substances, liquids containing air and gas as well as raw,
activated and digested sludge.
2.0 Operating data

4.0 Drive
Three–phase asynchronous motor;
415 V + 10% -15%
50Hz –5%
5.0 Material
Standard version of cast iron with stainless steel impeller
G = All main parts in Cast iron - (cast iron casing and Cast
iron impeller).
G1 = all main parts in Cast Iron only and impeller in
Satinless steel - (NiCI casing and CF8M impeller).
6.0 Shaft sealing (Bellow Type)
Two mechanical seals being independent of the direction of
rotation, lubricated with oil and in tandem arrangement.
For jacket cooling, cooled by internal cooling fluid
7.0 Bearings
Grease lubricated ball and roller bearings for drive end and non
drive end.
8.0 Standards
• Performance as per DIN EN ISO 9906, Gr. 3B.
For motors upto 10 kW - Refer Section 4.4.2
• Balancing of rotors as per ISO 1940 Gr. 6.3
• Cables as per IS 9968-1
3.0 Designation
Example
KRT K 150-315 / 11 4 U G1 - P
Pump type
Impeller type ( E, K, F)
Hydraulics dimension
Motor size
No. of Poles
Motor Version (U/UN)
Material version / variant (G, G1)
Installation Type
(S = stationary without cooling jacket, P = transportable
without cooling jacket, K = stationary with cooling jacket.)