How does a mag drive rotary vane pump work?

3 February 2015

In a magnetic drive rotary vane pump two pumps design are combined together: the sealless magnetic coupling and the positive displacement system with vanes.

With the magnetic coupling the torque is transmitted through contactless magnetic forces from the external magnet which is coupled to the motor shaft to the internal magnet which is connected to an impeller or rotor. This design ensures a hermetic and reliable separation between the pump and the motor making it the best solution when pumping chemicals and acids because it prevents leakage and emissions.

A rotary vane pumping system consists of vanes mounted in a rotor that rotate inside a cavity. When the rotor moves thanks to the above mentioned mag drive system, the vanes slide into and out of the rotor creating vane chambers that do the pumping work.

For further information you can watch the video below or visit our website

GemmeCotti year 2014, a year full of novelties

12 December 2014

Another year has almost passed and it’s time again to sum up all the novelties and developments that we faced in 2014:

January: development of new mag drive centrifugal pump model HCM with casing machined from a solid block. The biggest pump of the series can reach 130 m3/h.

February: Mr Marino Cotti, one of GemmeCotti’s shareholders, after 22 years with the company sells his shares to Mr Enrico Gemme and leaves Italy to start a new business adventure abroad.

March: GemmeCotti starts a contest for students of graphic design schools with the purpose of updating the company logo. Istituto Professionale Albe Steiner of Turin accepts the proposal and two students win the prize for the best logos. Click here to know more.

April: the new video with our company presentation is online, click here and enjoy!

May: we hire Ms Eleonora, a new sales agent who will support Italian customers.

June: renewal of our ISO 9001:2008 certificate after a periodical audit performed by a TUV Sud lead auditor.

July: two video tutorials of how to assemble and disassemble GemmeCotti centrifugal mag drive pumps are online, click here and here to watch them.

August: Special offer for air-operated double diaphragm pumps model HAOD, promotional prices of sizes 1/2″ and 1″ in PP and PVDF.

September: we exhibit at Expoquimia 2014 in Barcelona with our Spanish distributor Bombas Torres.

October: production of vertical seal-less mag drive pumps series HTM-V which can be used for tank and sump applications without risk of leakage and emissions thanks to the hermetic design.

November: we hire Nicolò and Giacomo, newly-graduated engineers who will assist the Technical department in the development of new pumps.

December: the newly-hired engineers begin to prepare 3D drawings of all our pumps. We plan to finish all the drawings by the end of next year.

We have many more projects to develop in 2015, so follow us for many more news.

GemmeCotti at Expoquimia 2014, our fair experience

11 November 2014

Last month we exhibited at Expoquimia 2014 in Barcelona, Spain and we had the chance to show our complete pump production including the new mag drive centrifugal pump model HCM PP/PVDF machined from a solid block and the portable mag drive centrifugal pump model H-IBC.
We were particularly pleased with our time at the fair because we discussed with customers and potential customers about new ideas for GemmeCotti pump development.
We want to thank, in particular, our Spanish distributor Bombas Torres who shared the stand with us and supported us during the entire exhibition.

Video: how to assemble and disassemble metallic mag drive pump series HTM SS316

22 September 2014

Here is the new GemmeCotti video tutorial: how to assemble and disassemble mag drive pump HTM SS316.

MAIN FEATURES OF MAG DRIVE PUMPS HTM SS316

Mag drive centrifugal pumps model HTM SS316 are seal less pumps suitable to pump hydrocarbons, solvents and dangerous liquids and are made of AISI316. These metallic pumps have a special design in which the transmission of the motion occurs through magnetic joints (external magnet and internal magnet) without any mechanical seal. The external magnet is placed on the drive shaft and transmits the motion to the internal magnet connected to the impeller which rotates and moves the liquid through the pump.
This simple structure guarantees a very reduced maintenance with consequent save in terms of repairing and spare parts costs during the pump life. Click here for more information about HTM SS316 pumps.
Enjoy our video tutorial!

Video: how to assemble and disassemble mag drive centrifugal pump HTM PP/PVDF

10 September 2014

Here is the new GemmeCotti video tutorial: how to assemble and disassemble mag drive centrifugal pump HTM PP/PVDF. Click here or on the image below to watch the video

MAIN FEATURES OF MAG DRIVE PUMPS HTM PP/PVDF

Mag drive centrifugal pumps series HTM PP/PVDF are chemical seal less pumps suitable to pump high corrosive fluids and are made of polypropylene or PVDF. These kind of pumps for acids has a special design in which the transmission of the motion occurs through magnetic joints (external magnet and internal magnet) without any mechanical seal. The external magnet is placed on the drive shaft and transmits the motion to the internal magnet connected to the impeller which rotates and moves the liquid through the pump.

This simple structure guarantees a very reduced maintenance with consequent save in terms of repairing and spare parts costs during the pump life.

Watch our video tutorial for more information!

That’s how you can unload tank trucks and IBC containers

14 July 2014

When you have to unload a tank truck or an IBC container you need to use a suitable pump resistant to corrosion that can be easily moved. That’s why we designed a pumping system which is portable and composed of chemical resistant mag drive centrifugal pump series HTM PP/PVDF. The peculiarities of this device are that it is flexible for different uses, and it is portable.

The pump is placed in a proper structure that can be removed from an IBC container’s attack and connected to another, thanks to quick couplings, ensuring anyway all of its functionalities.

The displacement of the pump is easy and rapid, as a result of its compact shape and its practical handles, located on the top. The system includes a control panel composed by illuminated start and stop pushbuttons, a red LED for power on, an emergency stop button with manual restoration and a flexible supply cable with CEE plug. There is also a specific container in order to collect dropping fluid. As an optional, it is possible to order a dry running protection device and a frame with wheels for an even easier portability.

FEATURES OF THE PUMP

Materials available: PP and PVDF
Max capacity: 13 m3/h
Max head: 14 m
Standard motor: 0,55 kw, B3/B5, 2poles, single phase, 230V, 50-60HZ
Baseplate: included

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