Magnetic Drive Pump
Over 60 Years
Sealless Magnetic Drive Pumps
Klaus Union started out over 60 years ago as a vision of the founder Franz Klaus, developed into today’s world’s leading manufacturer of sealless magnetic drive pumps. Providing the broadest range of sealless application coverage, Klaus Union is the trused specialist, when leakage cannot be tolerated. Over 60,000 installed sealless magnetic drive pumps worldwide handle aggressive, toxic and explosives fluids safety and reliable. Sering the Chemical, Petochemical, Pharmaceutical and other lndustries. Klaus Union’s scope of products is complemented by a broad range of high quality valves.
WHY MAGNETIC DRIVE PUMPS
First, as soon as “zero leakage” is a must, the use of a magnetic drive pump provides the advange of eliminating a usually more-expensive double mechanical seal system with a pressurized sealing arrangement, all necessary auxlilary components and installations, as well as the related maintenance of this system.
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Toxic/Lethal
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Carcinogenic
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High Pressure
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Aggressive
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Contaminated
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Poisonous
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Risk of fire
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Explosive
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Hot/Cold
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Acid
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Pyrophoric
The Flexibility of KLAUS UNION Magnetic Drive Pumps
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Upgradeable magnetic coupling to higher/lower torque requirements
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Variety of isolation shell materials (Hastelloy, Titanium, non-metallic)
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Alternative journal bearing materials for low lubricity liquids
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Internal flush system designed to handle boiling liquids
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Self cleaning internal/external filter to protect journal bearings from solids
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Suction inducers to handle low NPSHA applications
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External flush feed connection to lubricate, cool and flush with clean liquid
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Double-wall isolation shell for critical services requiring double containment
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Heating and cooling of can and magnet area
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Center-line support for high teperature application
SLM-AVO
Operating Parameters
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Flow rates up to 1,000 GPM
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Total delivery heads up to 450 feet
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Temperature ratings from -185 °F (-120 °C) to +572 °F (+300 °C)
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Flange rating per ANSI B16.5 Class 150 and Class 300
Special Alloy
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Hastelloy B 1 (B)
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Hastelloy C 1 (C)
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Titanium
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Further materials are available.
Standard Materials
Pump Casing : 316 SS
Impeller : 316 SS
Isolation Shell : 316 SS/Hastelloy C4
Inner Magnet Carrier : 316SS/Hastelloy C4
Internal Bearings : Silicon carbide, alpha grade
Bearing Frame : Cast steel/nodular cast iron
Magnets : Rare earth Samarium Cobalt
SLM-AVP
SEALLESS MAGNETIC DRIVE PUMP
Klaus Union’s SLM-AVP is a horizontal, sealless centrifugal magnetic drive pump for Petroleum, Heavy Duty Chemical, and Gas Industry Services per API 685 standard.
Operating Parameters
- Flow rates up to 18,000 GPM
- Total delivery heads up to 700 feet
- Temperature ratings from
- -185 °F (-120 °C) to +840 °F (+450 °C)
- Flange rating per ANSI B16.5 Class 150 and Class 300
SLM-HVO
SEALLESS MULTI-STAGE MAGNETIC DRIVE PUMP
Klaus Union’s SLM-HVO is a sealless multi-stage pump with permanent magnetic coupling for applications with high delivery head requirements. Multiple centrifugal stages are arranged in back-to-back design to reduce axial bearing load to a minimum.
Construction
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Horizontal high pressure multi-stage pump
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Permanent magnet drive system, no mechanical seal
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Separation of liquid chamber/atmosphere by means of an isolation shell
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Synchronous drive transmitted by inner and outer magnet systems
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Liquid lubricated internal bearings made of silicon carbide
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Bearings of outer magnet carrier: deep groove ball bearings
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Impellers arranged in pairs, back-to-back design

Operating Parameters
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Flow rates up to 2,500 GPM
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Total delivery heads up to 4,200 feet
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Temperature ratings from -40 °F (-40 °C) to +356 °F (+180 °C)
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Pressure rating to 1,450 PSIG (PN100)