Main applications mk / mky

  • Building services
  • Drainage
  • Drainage pump stations
  • Energy
  • Industry engineering
  • Municipal waste water
  • Sewage treatment plants
  • Surface drainage
  • Waste water
  • Waste water lifting units
  • Water
  • Water treatment

Design mk / mky

Vertical submersible pump with three-channel impeller, volute casing designed as inlet strainer.

Application pump mk / mky

Pumping condensate and heat transfer fluids below boiling point, condensate return systems, primary and secondary heating circuits, for direct installation in heating tanks or heat exchangers in the secondary circuits of heat transfer systems (MKY).

Technical data

Q max 36.0 m³/h
H max 19.0 m

Drive pump au monobloc

  • KSB surface-cooled IEC three-phase current squirrel-cage motor
  • 230/400 V
  • Type of construction IM V1
  • Enclosure IP55
  • Motors integrated in explosion-proof pump sets are supplied in Ex eb IIB / Ex db eb IIC type of protection.

Desing Details pump mk / mky


▪ Volute casing
▪ Vertical installation
▪ Rigid connection between pump and motor
▪ Single-stage

Shaft seal

▪ Vapour barrier
▪ Gland packing

Impeller type

▪ Three-channel impeller


Drive end:
▪ Radial ball bearing
▪ Greased for life
Impeller end:
▪ Bearing bush
▪ Product-lubricated
▪ Optional:
– Internal lubrication by fluid handled
– Grease lubrication
– Lubrication by external fluid

Overview of technical data mk / mky

Q (50Hz)2.0 – 36.0 (m³/h)
H (50Hz)0.5 – 19.0 (m)
Type of bearingRolling element and plain bearings
Casing partitionRadially split
DriveElectric motor
Drive frequency50 Hz /60 Hz
Type of driveElectric motor
Drive voltageLow voltage
Connection to power supply230/400 V, 3~
Explosion protectionEXX E II, EEX DE II
No. of impeller entriesSingle entry
Maximum submergence2800.0 (mm)
Impeller material (EN standard)CC480K-GS, 1.4408, JL 1040
Type of couplingDirect
Type of lubricationGrease / Product lubrication
Max. permissible fluid temperature200.0 (°C)
Nozzle positionVariable
Maximum operating pressurePN 6
Pump set locationWet well
Shaft material (EN standard)1.4021.05, 1.4571
Suction characteristicsNon-priming
Top plateYes
Type of casingVolute casing
Type of impellerRadial, Three-channel impeller, Closed
Type of connectionScrew-ended, flange
UNSPSC classification4015150300
Casing material (EN standard)CC480K-GS, JL 1040, 1.4408
eClass assignment36410000, 36410100, 36410103
Free passage18.0 (mm)
Installation positionVertical
Shaft seal typeShaft seal ring
Main applicationsIndustry and process engineering, Water, Waste water / sewage
Casing materialStainless steel, Bronze, Cast iron
Maximum discharge-side pressure6.0 (bar)
Maximum drive rating3.0 (kW)
Type of installationStationary
Maximum speed of rotation3500.0 (1/min)