(2) General Magnetic coupled DICKOW-Pumps of series HZSM / HZSMA are of sealless design. The containment shell forms a closed system with hermetically sealed liquid end. The properties of the integrated side channel stage allows the handling of entrained gas and operation under suction lift conditions.
Applications Magnetic driven HZSM / HZSMA-pumps are designed to improve plant and personnel safety, especially when handling toxic, explosive or other dangerous liquids which react on contact with the atmosphere. For all these services the containment shell replaces double acting mechanical seals, along with external fluid reservoirs and the necessary control equipment. HZSM / HZSMA-pumps therefore offer ...
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.
The weakest link with regard to potential
environmental damage in the case of centrifugal pumps, is the
shaft sealing, because there is always some inherent emission
from mechanical seals.