KSB Magnochem Seal-less Pumps (Mag-drive Pumps)
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KSB Magnochem Seal-less Pumps (Mag-drive Pumps)
Main applications
▪ Chemical industry
▪ District heating
▪ Industrial recirculation systems
▪ Air-conditioning systems
▪ Condensate transport
▪ Cooling circuits
▪ Petrochemical industry
▪ Pipelines and tank farms
▪ Refineries
▪ Process engineering
▪ Hot-water heating systems
▪ Sugar industry
Fluids handled
▪ Aggressive fluids
▪ Explosive fluids
▪ Flammable fluids
▪ Toxic fluids
▪ Valuable fluids
▪ Fluids which are injurious to health
Design
▪ Volute casing pump
▪ Horizontal installation
▪ Back pull-out design
▪ Single-stage
▪ Meets the technical requirements to ISO 5199
▪ Dimensions and ratings to EN 22858 / ISO 2858 complemented by pumps of nominal diameters DN 25, DN 200 and above
▪ Hydraulic system components identical with those of standardised chemical pump
Pump casing
▪ Single or double volute, depending on the pump size
▪ Radially split volute casing
▪ Volute casing with integrally cast pump feet
▪ Replaceable casing wear rings
Impeller type
▪ Closed radial impeller with multiply curved vanes
▪ Back vanes or discharge-side sealing gap reduce axial thrust
Shaft seal
▪ Seal-less, with magnetic coupling
▪ Containment shroud as sealing element
▪ Optional: with leakage barrier
Casing cover variants
▪ Internal circulation (flushing connection possible)
▪ External liquid feed (barrier fluid)
▪ Version with filter (flushing connection possible)
▪ Heatable
Bearings
▪ Grease-packed for life
A theoretical bearing life Lh10 of 25,000 h can be achieved at an operating temperature of 90 °C. At temperatures below 80 °C, Lh10 values of 30,000 h are possible. However, bearing life may be reduced by vibrations, aggressive gases, moisture, etc.
Drive-end bearings
▪ Radial ball bearings with internal clearance C3
▪ Grease-packed for life (high melting point grease)
▪ Optional: oil lubrication
Pump-end bearing
▪ Hydrodynamic plain bearings
▪ Product-lubricated
Automation options
▪ Hyamaster
▪ hyatronic
▪ PumpDrive
Coating and preservation
▪ Coating and preservation to KSB standard
Product benefits
▪ High operating reliability:
– No more than 2 static seals are required.
– Containment shroud protected by anti-rub feature and (dis-)assembly aid
– Self-draining facility of containment shroud
– Pump does not need to be drained before drive unit is fitted/removed for servicing
▪ Broad application range ensured by:
– Product-lubricated plain bearings made of silicon carbide
– Temperature-independent mounting of plain bearings
– Temperature maintenance and heating facility for casing, rotor space and bearing bracket lantern
▪ Low-maintenance design:
– Grease-packed rolling element bearings sealed for life (Lh = 25,000 h)
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