Printed on 06-05-2012

Manufactured by: For more information please contact:

Pumping

• Aggressive, explosiveand toxic liquids

• Acids & lyes

• Hydrocarbons

• Heat transfer liquids

• Liquid gases

• Liquids Diffi cult-to-seal

• Ultrapure liquids

Applications

• Refi neries• Chemical and petrochemical

industries• Refrigeration and heat engineering• Liquid gas plants• Galvanic engineering• Power stations• Tank installations• Pharmaceutical industries• Fibers industries

HEAVY DUTY HORIZONTAL, SEALLESS CENTRIFUGAL PUMP WITH PERMANENT MAGNET DRIVE SYSTEM, NO MECHANICAL SEAL ISO 2858 - DIN 24256

CN MAG-M Series

The separation of liquid chamber/atmosphere by means of an isolation shell is the best solution to pump aggressive, explosive and toxic liquids, hydrocarbons, heat transfer liquids and liquids diffi cult to seal.The hermetic sealless is the best solution for the chemical, pharmaceutical and petrochemical industry.A wide range of pumps covers the different performances. CN

MAG

-M

Bedu Pompen B.V. P v M Gelderland Rood 10 6666 LT HETEREN Tel: +31 (0)88 4802 900 - Fax: +31 (0)88 4802 901 www.bedu.eu - info@bedu.eu

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General

CN MAG-M Magnetic drive pumps are sealless pumps. The static rear containment shell forms a closed system with hermetically sealed liquid end.

Applications

CN MAG-M Magnetic drive pumps are designed to improve people and plant safety. Especially when toxic, explosive or other dangerous liquids which react on contact with the atmosphere are handled. For all these services rear containment shell replaces double mechanical seals with external fl uid reservoires and all the required control devices. CN MAG-M pumps offer therefore exceptional benefits to the chemical, petrochemical and allied industries.Maximum capacity up to 4000 mc/h, differential head up to 155m.Temperature range from -185 °F (-120 °C) to +662°F (+350 °C) without external cooling. The maximum allowable working pressure 50bar for the standard version and 150bar for HP Version, higher pressure version available on request and temperature up to +842°F (+450°C).

Leakproof

CN MAG-M pumps have no glands, no seals no valves.Contrary to sealed centrifugal pumps, the hermetic construction of the CN MAG-M mag drive pump ensures a safe and leak free operation. Even under heavy-duty applications the pumps are extremely reliable.

The mag drive pumps have an extended choice of materials as well as a wide variety in models.With its 100% zero leakage mag drive coupling the mag drives are your problem solvers in fl uids and chemicals transfer.

Construction

CN MAG-M are a single stage volute casing pumps with closed impellers, back-pull-out design, with end suction and top discharge fl ange.Sturdy legs are provided as standard for foot mounting on the base plate. Capacity and outer dimensions according to DIN 24256/ISO 2858.

Advantages

CN MAG-M mag dr ive

centrifugal pumps

• Zero leakage (100% leak free)

• No mechanical seals or packed glands

• No external fl ushing systems

• Ensu re a c l ean and sa fe operating environment, highly effi cient

• Close couple and bare frame design

• No al ignment required for closed couple version

• Increased Mean Time Between Maintenance

ATEX

CN MAG-M mag drive pumps can be supplied to meet the requirements of Directive 94/9/EC, with ATEX certification II -/2 G cbk II C Tx for installation in potent ia l ly explosive atmospheres.

Performance curves

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MAWP for CN MAG-M series ISO 2858 - DIN 24256

TEMPERATURES

Double slide bearings

The shaft is supported by two strong sleeve bearings. The stationary bearings are located centrally in the common bearing housing, which ensure the proper alignment for a true running. Standard material is pure alfa grade - Syntherized Silicon Carbide, highly resistant against corrosion and wear.The Silicon Carbide parts are elastically mounted by tolerance rings, beared and designed for temperatures up to +662 °F (+350 °C) without heat exchanger.Higher temperature on request.

Temperature control

Connections for resistant temperature detection elements, liquid and shell surface control are available as standard. Are also available on request monitoring devices for outer ball bearing.

NPSH-Conditions

As the internal circulation from discharge to suction, doesn’t rise temperature in the pumped liquid the handling of boiling liquids is possible without an increase of NPSH-required.

Balanced thrust loads

The thrust loads of the closed impellers are totally balanced by back vanes. Minimum residual forces that act in suction fl ange direction, are beared by strong silicon carbide, spring mounted, thrust bearings.

Rear containment shell protection

The clearances between the outer rotating magnets and the stationary shell and between the rotating magnet holder and bearing bracket prevent magnets from rubbing on the rear containment shell in case of ball bearing failure.

Internal circulation, pressurized containment shell area

When the pump is operating the heat generated in the containment shell and inner magnet area by eddy currents, is dissipated by an internal fl ow circulation from the discharge directly behind the impeller.The Pressure is increased by the rear impeller back vanes circulation, and come back to discharge.

Outer ball bearings

The outer magnet shaft is fitted in generously dimensioned antifriction bearings. The bearings are L10 rated for an average life in excess of 5 years. The oil bath is protected against atmosphereby a lip seal (labyrinth oil seal on request).The oil level is controlled by a constant level oiler and additionally by a bull's eye sight glass.

Second & Third level containments

The double containment shell consists of two isolation shells placed one into the other. The gap between the two shells allows an effective monitoring via a pressure gauge or a vacuum system.Any alarm to interior or exterior shell will produce an alarm signal before any leakage occurs.On request, a mechanical seal can be supplied in place of the lip seal. The mechanical seal separates the magnet area from the oil bath and atmosphere, and together with the closed bearing housing forms a third containment after the double containment shell.

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P U M P D E T A I L S

Epoxy primer and polyacrylic enamel water-based painting for the best quality resistance linked to the environmental respect.

CF8M Pump Casing & Impeller High quality casting components.

Other materials:- Hastelloy® C276,- Incoloy® 825,- Duplex,- Titanium, - Other materials available on request.

Field assembling of the product lubricated bearing arrangement does not require special tools.The Bearing materials available are of three different types to provide the best solution for each application: Silicon Carbide (SSIC), Tungsten Carbide (WC).Special configuration with PEEK composite compound for improoved cavitation transitory resistance.The use of elastic rings reduces the sleeve bearing loads and the thrust bearing loads to a minimum, to guarantee many years of maintenance-free operation.

RWP QUICK CHANGE CARTRIDGE KIT to guarantee an easy and fast maintenance.

Closed impeller statically and dinamically balanced. The axial thrusts are balanced by back vanes.This allows the best balancing of axial trusts without regards of suction pressure.

FILE NUMBER: PD2010A000249

Rear shell is made of one single piece, no welding, ellipsoidal profi le that has been studied to withstand higher pressures than the traditional one. Hastelloy® C276 is standard isolation shell material - providing a safe and effi cient solution – system pressure max 16 bar. Hybrid rear casing technology available for energy saving confi guration. Titanium Alloy is an upgrade when higher pressure ratings and increased effi ciency are required. Double rear shell on request.

Close couple and bare shaft version

High power synchronous magnetic coupling designed by our Technical Office and with rare earth magnetic elements mechanically locked.The high performance magnets can operate at liquid temperature of up to 662 °F (350 °C) without external cooling. Installed power over 500 kW / 700 HP.

Sealing system with fl at gaskets prevents from leaking in the atmosphere – different materials available:

- Asbestos free (standard)- PTFE- Graphoil- GYLON®

- Spiral Wound- Other on request

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Most AdvancedRear Containment Shellon the Market

HybridContainmentShell withthermocouple

Our Hybrid containment shell

consists of a dual shell system.

The external shell is made of carbon fber, and

the internal shell is made of Hastelloy ® C or

Titanium. Using carbon fber on the External

guarantees the highest mechanical strength and

the internal metallic shell ensures optimal che-

mical compatibility. We offer optional tempe-

rature monitoring.

The Temperature sensor installed between

the inner and outer

shell is located at the

source of the magnetic

field to provide accurate

temperature reading and

timely response to avoid co-

stly pump failure.

In addition to generating much lower temperatures

compared to other metallic versions, the thin

shell of Hastelloy ® C, guarantees immediate

and accurate reading of temperature changes.

Traditional solid metallic Shell Containments

with thermocouple PT100 see delays in reading

temperature, possibly resulting in pump failure.

Thanks to our 40 years of experience in magnetic drive technology, M Pumps is able to supplyinnovative and unique rear containment shell on magnetic drive pumps to enhance thecompetiveness and operational efficiency in today’s process industry.As technology advances, the need for high pressure, high temperature and energy eciency becomethe top priorities among pump users. Staying ahead of these priorities required M Pumps to adopt aforward thinking and proactive approach to pump design. Based on this Philosophy, M Pumps has createdan advanced High pressure, High Temperature and Energy e cient Rear Containment Shell to eliminatethe various concerns on the use of magnetic driven pumps in the process industry.

The patented hybrid technology containment shell combines the reliability of a standard inner metallicshell (High Pressure and High Temperature) with the strength of Carbon Fibre outer shell to achievean energy ecient (Reduction in magnetic loss and cost of ownership) and environmental friendly(Hermetically sealed) solution.

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