DICKOW®-pumps of series HZMR are sealless multistage horizontal centrifugal pumps, driven by a synchronous permanent magnetic coupling. The containment shell is sealed by a confined gasket and separates the pumped liquid from the atmosphere. There are no leakage endangered dynamical shaft sealing available.

Due to the fact that 90% of pump failures are caused by leaking shaft seals, the sealless design increases the availability and reduces maintenance costs.