Video: how to assemble and disassemble magnetic drive turbine pump HTT

11 December 2015

Here is the new GemmeCotti video tutorial: how to assemble and disassemble magnetic drive turbine pump series HTT PP/PVDF. Enjoy!

MAIN FEATURES OF PUMPS HTT PP/PVDF:

Magnetic drive regenerative turbine pumps series HTT are made of thermoplastic non-metallic materials (polypropylene-PP and PVDF) and are suitable to pump high corrosive and dangerous liquids. Thanks to the innovative sealless mag drive system, pumps model HTT reduce risks of leakage and emissions and the maintenance costs are very low. The transmission of the motion occurs through magnetic joints without any mechanical seal. This design guarantees the maximum safety and efficiency.

Max capascity: 9 m3/h

Max head: 50 mlc

Max temperature: 70°C for PP pumps and 90°C for PVDF pumps

Contact our office for more information: info@gemmecotti.com

GemmeCotti at ChemShow 2015

25 November 2015

Enjoy the video of GemmeCotti sealless magnetic drive pumps at ChemShow exhibition!

Mag drive pump HTM 31 PP/PVDF now suitable for 4kw

9 November 2015

Sealless Magnetic Drive pumps model HTM 31 PP/PVDF are now suitable also for 4 KW motor size 112. This pump model can be coupled to three different motor sizes:

SIZE 90 – 2,2KW
SIZE 100 – 3KW
new SIZE 112 – 4 KW
You can contact our sales department for more details.

What are the characteristics of mag drive pump model HTM PP/PVDF?

HTM PP/PVDF pumps are mag drive centrifugal pumps made of thermoplastic materials (PP and PVDF) and are suitable to pump high corrosive liquids.

Max capacity: 45 m3/h, Max Head: 33 mlc, Max
Temperature: 90°C Max viscosity: 200 cSt, Pressure rating NP 4 at 20°C.

Click here to find out more.

How does a magnetic drive pump work?

Sealless mag drive pumps have a particular sealless design that is suitable to pump corrosive and dangerous liquids thanks to the high chemical resistance and absence of leakage and emissions. The structure is really simple and requires a very reduced maintenance with consequent save in terms of repairing and spare parts costs during the pump life.
The external magnet, placed on the drive shaft, transmits the motion to the internal magnet connected to the impeller which rotates and moves the fluid through the pump.

Here is a sketch of the functioning of magnetic drive system.

Why choose GemmeCotti as your pump supplier?

11 September 2015

Every pump manufacturer tries to produce the best possible product at the cheapest price and to offer a good service to the customer. But every company has its own peculiarities and characteristics which make it different from all the other competitors in the same market. That is why sometimes the customer needs to know all the positive aspects of the pump supplier in addition of the technical features of the pump itself in order to choose the best solution for his needs.

Thinking about GemmeCotti, so many positive aspects come to my mind regarding both the products and the company. Here are some of the most important and significative

The company

Present in the chemical pump field since 1992. GemmeCotti has been producing chemical pumps for acids and dangerous liquids for more than 20 years. The brand is well known all over the world and GemmeCotti pumps are now exported in more than 75 different countries.
Design and production completely Made in Italy. We have a technical office that follows the entire designing process from the first idea of a new pump or pump improvement to the final validation of the prototype. When the pump is ready to enter the market we start the production in our workshop.
All the parts of our pumps are from qualified Italian suppliers and everything is checked by skilled GemmeCotti personnel to assure the compliance to the technical constructive drawings.
Wide range of pumps. We manufacture different type of pumps: SEALLESS MAGNETIC DRIVE CENTRIFUGAL PUMPS, SEALLESS MAGNETIC DRIVE TURBINE PUMPS, SEALLESS MAGNETIC DRIVE VANE PUMPS, MECHANICAL SEAL PUMPS, VERTICAL CENTRIFUGAL PUMPS, LIQUID RING VACUUM PUMPS in 3 main materials PP/PVDF/ASISI316. These pumps are offered with almost 400 variations according to the customer’s need (special design, special materials, different o.rings, different motor sizes for each pump etc….).
Company certified ISO 9001. In 2007 GemmeCotti obtained the ISO certification, a clear proof of our dedication to constant improvement and desire to offer high quality service and products.
Skilled and always updated personnel. All the employees participate to periodical courses to be constantly informed both on the technical side and on the commercial and marketing aspects of our field.
Pumps ready on stock to assure the fastest possible delivery of standard pumps and spare parts. In case of urgent need the customer can have the pump in very few days to avoid unpleasant plant shutdowns during normal processing cycles.
Constant innovation of working techniques and pump design. We are always trying to find innovative solutions to offer the best to our customers.

These are only a few of the many reasons why a customer should choose GemmeCotti as his pump supplier….apart from the quality of the pumps of course…

Achema 2015: what a big success!

29 July 2015

On 19th June the international exhibition for the chemical industry ACHEMA 2015 ended now it’s time to sum up the results of our participation. We decided to present a sample of each pump type so that the visitors of our stand could have an idea of our manufacturing capability: from the sealless magnetic drive pumps (centrifugal, vane and turbine pumps in plastic and metallic materials) to the mechanical seal pumps and vertical centrifugal pumps. Needless to say that the extremely positive feedback and the enthusiasm shown by customers and potential customers for our pump was more than what we expected.
Our Managing Director Mr Enrico Gemme after the exhibition commented: “Achema 2015 has been a huge and unexpected success. We got many new contacts interested in our pumps and we truly believe that in the next months we would be able to expand our business in new countries making GemmeCotti a leader worldwide in the field of chemical pumps”.

How can you prevent dry running of pumps?

14 July 2015

To safeguard magnetic drive pumps against damage caused by insufficient liquid, GemmeCotti offers the Emirel A1-13-Y dry-running protection device. Specifically designed for these pumps, this device prevents dry running, closed discharge, and blocked suction scenarios. Its adjustable threshold and timer allow for customization of minimum power and operational time settings. If power falls below the set value, the pump is automatically stopped, ensuring protection. This device is especially valuable during tanker unloading operations and in any application where liquid shortage poses a risk.

Main features

Single Phase CURRENT RELAY
Multirange 15-35A
2 set points MAX / min
Also for motors with INVERTER
Direct insertion TA through
LCD Display

What happens when a pump runs dry?

When a pump works without fluid there is a sudden increase of the internal temperature with destructive results of some pump parts. For example, when a plastic pump (in PP or PVDF) runs dry, the main damage occurring are:

1- the shaft in ceramic may break due to a thermal shock.

2- the rotating bushing may block on the shaft.

3- melting of some plastic parts (impeller, rear casing, internal magnet etc.) due to the sudden temperature rise.

How is it possible to prevent dry running?

To avoid the inconvenience of the dry running you can simply install a dry running protection device which stops the pump immediately in case of danger of dry-running. As a matter of fact, the device checks constantly the active power of the motor, which is the minimum value of the instantaneous power absorbed by the pump, through the reception of information about the voltage, the cosφ and current variations. Through a set point and a timer, which are adjustable, it’s possible to set the minimum power and the triggering time of the device. If the power goes under the established value, the pump stops and the device must be switched on again manually. In case of continuous intervention on the apparatus, check the presence of liquid and/or the correct functioning of the plant to find the cause of working of the device.