| Design Feature Performance Benefit |
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| Dual Volute |
The MK4 and MK12 sealless pumps have dual volute casing design which lowers radial bearing loads to provide longer life and allows continuous operation anywhere between 1 M3/H to full flow. |
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| Magnetic Coupling |
Samarium cobalt magnets provide high torque throughout the temperature operating range -20°F to 250°F (-28°C to 121°C). One magnet coupling assembly fits all sealless pumps. This lowers cost and simplifies inventory. The inner magnet is fully Kynar (PVDF) encapsulated – no weld seams no potential leakage. |
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| Enclosed Impeller and Magnet |
The impeller and inner magnet is a two-piece, enclosed assembly. When worn, the impeller can be replaced without replacing the magnetic drive which substantially reduces repair cost. Impellers can be trimmed in the field. |
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| Pump Casing |
The sealless pump casing is constructed of 1/4” (6.35 mm) minimum wall thickness, carbon fiber filled Kynar (PVDF). This is more reliable, without permeation problems commonly found in lined metal casings. |
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| Case and Flange Supports |
Chemical resistant glass filled vinyl ester composite and glass-filled nylon provides superior performance to painted metal. |
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| Unique Design |
Proprietary thrust balancing system eliminates axial loads (Patent Pending) to dramatically reduce wear and heat generated from friction. Inner magnet and impeller assembly float axially. |
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| Heat Dissipation |
Non-metallic Kynar and carbon fiber-braid containment can superior to a metal can design for eliminating heat generated from eddy currents created by alternating flux lines. |
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| Easy Assembly |
Assembly of sealless pump and motor driver is fast and easy due to the motor shaft in full view and low pump weight. |
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| Chemical Compatibility |
Kynar (PVDF), Silicon Carbide and o-rings (Viton, EPDM, or Simriz) are the only materials in contact with the pumpage. |
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| Rugged Construction |
Fine grain “Alfa” silicon carbide for higher strength and more fracture resistance. High grade carbon or glass filled non-metallic components for high strength and chemical resistance. 300 Series stainless steel hardware. |
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| Efficient Installation |
Back pullout design per ANSI B73.1, does not disturb piping. |
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| Easy Servicing |
100% replaceable wear components including: “Alfa” grade silicon carbide sleeve bearings, wear rings, and shaft. |
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Wanner Engineering, Inc.
Wanner International Ltd.