Nikkiso HK Series Non-Seal Centrifugal Canned Motor Pumps

Product Portfolio

HK-Series

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Nikkiso HK Series canned motor pumps are centrifugal pumps which, due to their construction are hermetically encapsulated, they are of two stage design, in tandem arrangement. The shaft seal usually required on centrifugal pumps is not necessary. The pumps are driven by integrated canned motors. Space requirements and noise emissions are much lower than those of conventional centrifugal pumps.

Compact size
Speed control by external frequency inverter
Axial thrust balanced for long bearing life
Spare parts interchangeable with SGM Series (B-Motor)
Low NPSHR

Materials (Standard Design)

Part	Code
Casing(s)	1.4408
Impeller	1.4401
Gaskets	PTFE
Bearing housing	1.4401
Bearing	Special Carbon or SiC
Shaft Sleeves	1.4401 / HCR 1.4401 / WC
Thrust Washer	1.4401 / HCR 1.4401 / WC
Motor Housing	1.0040
Stator shell	1.0040
Can	Hastelloy
Rotor/Stator end cover	1.4401
Base / Motor support	1.0040

Other materials on request

Applications

Nikkiso HK Series canned motor pumps can be used with numerous liquids, and also offers advantages over conventional pumps when pumping water. HK Series pumps are mainly used for aggressive, inflammable, explosive and toxic clean liquids.

The pumps are designed for use in vacuum systems.

High pressure water and chemicals
Reverse Osmosis
Ammonia, Ammonia water solutions

Pressure / Capacity Envelope

HK-Series

Driver

Integral 3-phase asynchronous motor IP55 and ATEX certification
The motors are in accordance with VDE/EN requirements
Hazardous area protection available, winding insulation for high temperatures
Motor safeguarded by incorporated thermostat(s)

michael smith
engineers ltd