Standard plastic pump

with magnetic coupling

for use in the

chemical industry

ISO 2858/DIN EN 22858

Replaceable:Plastic housing

Solid SiC:Isolation shell

One-piece:Rotor

Robust:Spheroidal cast iron casing

Monitoring:Temperature sensor(Option)

Inertia:Flywheel

Unconventional:Magnetic coupling

Wide-Set:Ball bearings

Subject to technical alterations.

External:Rotor bearings

Standardplastic pumpwith magneticcoupling for usein the chemicalindustry

ISO 2858 / DIN EN 22858

Directive 94/9/EG (ATEX)

The DangerIntermittent flow, e.g. after emptyinga tank, can be dangerous for thebearings of common magneticcoupled pumps: The remainingliquid is evacuated outwards as ina centrifuge, resulting in the innerbearings running dry. Often this canresult in complete pump destruc-tion.

The SolutionThe MONSUN rotor bearings arelocated at the outermost radius. Incases of intermittent flow, thebearings always possess enoughremaining liquid for emergencylubrication. The pump will not bedestroyed and is able to runsmoothly. The heating of theremaining liquid can be monitoredand the pump stopped in an orderlyfashion.

ConceptMONSUN – a hermetic tightmagnetic coupled pump, which easily handles corrosive and dan-gerous liquids.

Features:

• Corrosion-resistant materials

• Simple construction

• Minimum number of static seals

• Tolerant to wrong operation

• Condition monitoring

Version as closed-coupled pump

Magnetic rotorThe central component is themagnetic rotor with its fluid lubrica-ted bearings located at the casing wall, forming one unit with the impeller and containing no static seal. Hence, common inner shafts, sleeves, separation walls and even the axial bearings which are required on typical magnetic drive pumps can be removed. The axial position as well as the propulsion of the rotor is taken over by a new kind of magnetic coupling with a rotating force of 80 Nm. A brilliant solution!

Isolation shellAn isolation shell of silicon carbidecloses the pumps inner areahermetically from the environmentand separates both halves ofthe rotating magnetic coupling.Eddy current losses are notgenerated.

Bearings

Even for closed-coupled versions,the magnetic driver is supported ingreased-for-lifetime roller bearings.Locating the isolation shells ope-ning to the electrical driver’s side allows a broad bearing centre distance. An additional flywheel prevents the magnetic coupling’s tear-off during start-up of the ma-chine.

The closed coupled version isconstructed in such a way that themotors shaft is coupled to themagnetic driver within the pump.This allows easy assembly anddisassembly of the electrical driver,without the need for de-coupling ofthe magnetic drive.

Versions

The design version is indicatedwith two letters following the sizedesignation,e.g. MONSUN 32-200 NP

NP = Standard pump from UHMW-PE

NT = Standard pump from PTFE/PFA

FP = Closed-cpld. pump from UHMW-PE

FT = Closed-cpld. pump PTFE/PFA

The temperature limits of the availa-ble materials is dependant upon thepumped liquid and range between-40 °C and +165 °C.

Characteristic curves

0 / I / II

0 / I

40

10

0

80

70

60

50

40

30

20

10

0

II

I

0

II

1 2 3 4 5 6 7 8 9 10 20 30 40 50 60 70 80 100

50-32-200

40-25-160*

50-3

2-16

0

65-4

0-20

0

80-5

0-20

0

I

0

50-32-200

50-32-250

40-25-160*

80-5

0-25

0

50-32-160

n = 1450 min-1

II

I

0

30

20

65-4

0-20

0

80-5

0-20

0

100-

65-2

50

1 2 3 4 5 6 7 8 9 10 20 30 40 50 60 70 80 100

n = 2900 min-1

Delivery m³/h

Hea

d m

Hea

d m

Delivery m³/h

Special applicationson request. Wereserve the right tomake technicalmodifications.

* Transnorm pump

* Transnorm pump

Pump with samebearing support size.

Pump with samebearing support size.

Cross section

101

103

818

100 350 160 597 210130

a f x k

h 1h 2

DNE

DNA

145

270 529 545 830 817 529

Dimension table

Only order spares according to the relevant parts list!

Part NameNo.

100 Casing

101 Pump casing

103 Annular casing

130 Part of the casing

145 Connecting piece

160 Cover

210 Shaft

270 Deflector

350 Bearing housing

529 Bearing sleeve

545 Bearing bush

597 Flywheel

817 Isolation shell

818 Rotor with impeller

830 Driver

* Transnorm pump Dimensions in mm

FlangesPN 16

DNE DNA a f h1 h2 x40-25-160* 40 25 80 385 132 160 100

50-32-160 50 32 80 385 132 160 100

50-32-200 50 32 80 385 160 180 100

50-32-250 50 32 100 500 180 225 100

65-40-200 65 40 100 385 160 180 100

80-50-200 80 50 100 385 160 200 100

80-50-250 80 50 125 500 180 225 100

100-65-250 100 65 125 500 200 250 140depending onmotormanufacturer

WERNERT-PUMPEN GMBH • P.O.Box 10 21 53 • D-45421 Mülheim an der Ruhr • GermanyPhone: +49 (0) 208 / 3758-0 • Telefax: +49 (0) 208 / 40 74 72 • Email: info@wernert.de • http://www.wernert.de