Mag Drive
The Johnson Pump range of magnetic drive centrifugal pumps has no seals and is therefore leak proof. This makes the pumps ideal for pumping hazardous, toxic, explosive, aggressive or valuable fluids. Because of more stringent environmental requirements and ever more advanced manufacturing process, there is increase in interest in this type of pump.

CombiMag     CombiMagBloc     MDR-series


CombiMag
Mag drive horizontal centrifugal pump to ISO 5199 and ISO 2858 /EN 22858

Features
100% leakfree  

Long life cycle, reduced maintenance costs

 

Flanges according to ISO 7005 PN 16

 

For stainless steel execution ISO 7005 PN20 / 150 lbs ANSI B 16.5 available

Outstanding hydraulic performance

 

High efficiency impeller

 

Closed impeller with back vanes providing axial balancing of impeller loads

Half open impeller with wear plate

CombiMag, Johnson Pump

Easy maintenance through the Back-Pull-Out principle

Atex certification

Outer rotor with safety bearing

Somarium Cobalt high performance magnets

Containment can in Hastelloy® for limited eddy current losses

Silicon carbide pump liquid lubricated internal bearings

Heating jackets optional

Grease or oil bath lubricated bearings

PT 100 temperature monitoring

Interchangeable with existing ISO 2858 pumps

Suitable for
Clean liquids, slightly contaminated but the impurities must not be abrasive or magnetic

Casing:
Cast iron, Nodular cast iron, Stainless steel, Stainless steel alloys,
Nickel based alloys, Duplex
Impeller: Cast iron, Bronze, Stainless steel, Stainless steel alloys,
Nickel based alloys, Duplex
Max. capacity:          500 m3/h
Max. delivery head: 160 m
Max. liquid temperature: -50 up to 350°C
Max. system pressure: 1600 kPa (16 bar)

Max. viscosity:

150 mPas

Min. viscosity:

0.3 mPas

Max. speed: 3 600 rpm

Downloads (Sales brochure, Data Sheet, Instruction Manual)


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CombiMagBloc
Closed coupled magnetic drive horizontal centrifugal pump
to ISO 5199 and ISO 2858 /EN 22858

Features
100% leakfree

Long life cycle, reduced maintenance costs

Flanges according to ISO 7005 PN 16

For stainless steel execution ISO 7005 PN20 /
150 lbs ANSI B 16.5 available

Outstanding hydraulic performance

High efficiency impeller

 

Closed impeller with back vanes providing axial balancing of impeller loads

Half open impeller with wear plate

Easy maintenance through the Back-Pull-Out principle

Standard IEC flange motor

Atex certification

Outer rotor with safety bearing

Somarium Cobalt high performance magnets

Containment can in Hastelloy® for limited eddy current losses

Silicon carbide pump liquid lubricated internal bearings

Heating jackets optional

PT 100 temperature monitoring

Interchangeable with existing ISO 2858 pumps

Suitable for
Clean liquids, slightly contaminated but the impurities must not be abrasive or magnetic

Casing:
Cast iron, nodular cast iron, stainless steel, Stainless steel alloys,
Nickel based alloys, Duplex
Impeller: Cast iron, stainless steel, bronze, Stainless steel alloys, Nickel based alloys, Duplex
Max. capacity:         280 m3/h
Max. delivery head: 140 m
Max. liquid temperature: -50 up to 200°C
Max. system pressure: 1600 kPa (16 bar)

Max. viscosity:

150 mPas

Min. viscosity:

0.3 mPas

Max. speed: 3 600 rpm

Downloads (Sales brochure, Data Sheet, Instruction Manual)


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The MDR-series in PP and PVDF
Mag Drive seal-less centrifugal pumps are virtually leak-proof since the design eliminates the multitude of problems related to shaft seals and packings.

Features/Benefits
No leaking shafts
  Improved safety
High corrosion resistance
  Wide range of applications
Standard electric motors
  Simple and inexpensive replacement
Reliable in performance
  Less down-time
Simple design
  Easy maintenance
   

Suitable for
Sulphuric acid, caustic, sodium hydroxide, developer, fixing bath,
bleaching agent, various other chemicals

Casing:
PP filled with glass fibre, PVDF with carbon fibre
Impeller: PP filled with glass fibre, PVDF with carbon fibre
Max. capacity:             30 m3/h
Max. delivery head: 24 m
Max. liquid temp: 85°C for PP, 100°C for PVDF
Max. system pressure: 3 bar at 20° C
Max. speed: 2 800 rpm


Downloads (Sales brochure, Data Sheet, Instruction Manual)

   

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