Pump construction
The long-coupled pump is connected to the B5 motor type by an elastic coupling.

MHV MAG-M Operating Limit

• Max viscosity: over 10000 cSt
• Max system pressure: 16 bar (Higher pressure on request)
• Flow up to: 45 mc/h
• Head up to: 10 bar
• Temperature range: from -50 °C to +200 °C
• Electric motors: from 0.37 up to 37 kW
• Available Atex II – / 2G cbk II C T2-T5

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Positive displacement hollow disc magnetic drive pumps.

Main features of these pumps are: self priming capability, reversible flow, and low speed rotation. The low speed rotation together with a new magnetic coupling design reduces magnetic losses to a minimum.

Hollow disc pumps are ideal for pumping: OIL PRODUCTS, PAINTS, GLUES, RESINS, MOLASSES, SOLVENTS, SOAPS, COAL TAR, ADHESIVES, LOW LUBRICANT LIQUIDS, FOOD OILS, CHOCOLATE, GLUCOSE, GENERAL FOOD PRODUCTS, CREAMS, DETERGENTS, CORROSIVE LIQUIDS.

Can be supplied with optional bypass valve, bidirectional and accessible, to protect the pump and installation from dangerous over-pressures.

– Flanges Connections BSP (GAS) and NPT.

– Flange rating for DIN Norms Class PN16, PN25, ANSI B16.5 Class 150 and 300 lbs.

Pump head, base and cover made of ductile cast iron. Internal components made of stainless steel.

High manufacturing precision assures best volumetric efficiency and maximum reliability.

Available with BSP (GAS) and NPT threaded connections, and DIN PN 16, PN25, ANSI 150 lbs, ANSI 300 lbs flanged.

The hollow disc is eccentrically mounted in the rotor shaft and turns around the suction and discharge chambers separator vane. The piston follows the trajectory around the vane and externally to the pump head, pushed via an elastic device internally inserted. This achieves silent and reliable pumping, without vortexes or liquid breakages, even for viscous fluids above 10000 cSt.

Epoxy primer and polyacrylic enamel water-based painting for excellent quality resistance and environmental respect.

The rear shell is one single piece, no welding, ellipsoidal profile to withstand higher pressures than traditional designs. AISI 316 is the standard construction.

High power synchronous magnetic couplings designed by our Technical Office with rare earth magnetic elements mechanically locked. High performance magnets operate up to 200 °C without external cooling.

Shaft supports sized to withstand heavy loads, made from metallized carbon stationary and rotating tungsten carbide surface hardened parts.

Special versions are developed to meet different requests.

Rear casing sealing ensured by O-ring, available in different materials:

• Viton® (standard)
• EPDM
• FEP

Static sealing system with flat gaskets prevents product leakage to atmosphere – different materials available:

• Asbestos free (standard)
• PTFE
• GYLON®