Industrial Mag Drives

Tapflo UK - The Exclusive UK Distributor for M Pumps

M Pumps are an Italian family owned producer of high quality centrifugal & magnetically driven pumps. Their units are designed and manufactured in house with stringent emphasis on quality and build standards which can be delivered in compliance with API 610, API 685 as well as ANSI & ISO standards.

Due to careful testing and R&D into their products they are able to work the harshest working conditions to satisfy the requirements of the oil & gas, chemical processing, pharmaceutical & general industry marketplaces. Their standard portfolio spans over 26 designs and 350 basic models enabling the selection of pumps to be tailor-made to exact process requirements. Customised pumps & systems can also be provided to meet almost any demanding operating parameters.

Founded in 1978 M Pumps have been an industry front runner in the design and development of Magnetically Driven Pump Technology. Their unrivalled expertise and passion for their products has created a new standard for all magnetic drive pump systems. This has been founded on the following principles:

  • Energy saving

  • Environmentally friendly

  • Safety

  • Performance

  • Operational reliability

  • Total cost of ownership

  • Pump system simplification

Energy Saving Cost Comparison

The below table demonstrates the energy savings of the Hybrid Containment Shell vs traditional containment shell technologies. This was based on 0.12€/kWh.

Max Installed

Power (kW)

Rotational

Speed (rpm)

Mag-Losses (kW)

Traditional Tech.

Mag-Losses (kW)

Hybrid Tech.

Cost Saving / Year (€)

4

2900

1.40

0.36

910.00

5.5

2900

1.70

0.70

870.00

15

2900

2.60

0.78

1590.00

22

2900

4.00

1.04

2590.00

37

2900

6.00

1.56

3880.00

75

2900

8.70

2.30

5600.00

90

2900

9.40

2.80

5780.00

180

2900

19.00

5.60

11730.00

270

2900

27.00

8.40

16730.00

200

1450

6.70

2.50

3670.00

300

1450

13.40

5.00

7350.00

400

1450

20.10

7.50

11030.00

500

1450

26.80

10.00

14710.00

600

1450

33.50 (*)

12.50

18390.00

700

1450

40.20 (*)

15.00

22070.00

800

1450

46.90 (*)

17.50

25750.00

900

1450

53.60 (*)

20.00

29430.00

1000

1450

60.30 (*)

22.50

331100.00

(*) With these high installed powers & subsequent Mag-Losses the use of traditional containment shells is not possible however it is with the Hybrid Containment Shell!

Mag Losses & Heat Reduction Comparison: The below table demonstrates the comparison between the Hybrid Containment Shell and other containment shell technologies available today on a pump fitted with an 18.5 kW / 2 Pole / 50 Hz Motor.

 

Material

Design Pressure

(Bar)

Design Temp

(ºC)

Mag-Losses

(kW)

Notes

Hybrid

Hastelloy C / Carbon Fibre

50

-90 to +200ºC

0.78

Extremely reliable & suitable for temperature probe – Great price advantage

Competitors

Zirconium Oxide

16

-190 to +350ºC

N/A

High Cost & Lower Pressure

Metal Zirconium Oxide

16

-190 to +350ºC

1.5

High Cost, Lower Pressure & Higher Mag-Losses

Composite PEEK

16 (<20ºC)

-40 to +120ºC

N/A

High Cost & Limited Pressure / Temperature

PTFE / Carbon Fibre

16

-20 to +200ºC

N/A

Limited Pressure & Oversized Magnets (De-Coupling Risk)

Borosilicate Glass

10

-40 to +180ºC

N/A

Low Pressure, Very Fragile & High Cost (Oversized Magnet)

Minimised Temperature Rise on Rear Casing: The below graph shows the comparison of the Hybrid Shell Technology vs Traditional Shell Containment systems. The Hybrid technology vastly reducing heat generation in the rear casing which is of particular importance when pumping fluids with a low boiling/flash point.

M pumps Temperature graph

M Pumps have developed & patented a Hybrid Containment Shell system which generates minimal eddy current losses enabling the direct replacement of double mechanical seal pumps and canned motor pumps using standard motors. The shell combines a standard inner metallic shell (Hastelloy C or Titanium) with a high strength Caron Fibre outer shell to provide an energy efficient and environmentally friendly solution.

The Hybrid Containment Shell offers several advantages vs similar technologies:

Lower Power Absorption: Lower operational costs, total cost of ownership & size of fitted motors

Negligible Heat Generation: Ability to handle fluids with low flash points

High Design Pressure & Temperature Range: 50 Bar G & -90ºC to +200ºC

Accurate Monitoring & Control: Temperature sensors can be fitted at the source of the magnetic field to provide fast & accurate readings and feedback to avoid pump failure and costly downtimes. The thin Hastelloy C or Titanium inner shell provides an immediate and accurate reading of temperature changes. Traditional solid metallic containment shells fitted with PT100 thermocouples often have delayed temperature readings resulting in possible pump failures.

Inside of a centrifugal pump

Magnetically Driven Pumps

Mag drive diagram

A magnetically driven pump utilises a magnetic field which generates a rotating action which is imparted onto an impeller (or any other device used to displace a medium, such as gears). The external magnet is mounted onto the motor shaft and the internal magnet is mounted onto the driven shaft, which is attached to the impeller. This is supported by a bushing element and hermetically sealed by use of a containment shell to ensure a

Magnetically driven pumps have a number of advantages over traditional mechanically sealed pumps:

Sealless Design: Ensures operational safety for both users and the environment. This is of particular importance when pumping hazardous, corrosive & expensive fluids.

Lower Cost & Simpler: Expensive sealing systems and auxiliary API Flushing plans are avoided, reducing initial purchase cost and simplifying the process. Furthermore, pump selection, operation and maintenance are subsequently cheaper and easier.

Entrained Gas Handling: Most mechanically sealed pumps fail when being used with fluids containing high levels of gases due to seal failures caused by poor lubrication and cooling.

Desc

8 Items

per page
Desc

8 Items

per page
To Top