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INDUSTRIAL PUMPS FOR SCRUBBERS

APPLICATION: INSTALLATION OF CHEMICAL PUMPS IN SCRUBBER PLANTS

The emission of gasses in the atmosphere is regulated by specific national and international laws that must be respected by all industries. The term “air treatment” refers to systems and techniques used by the industries to keep the air quality and the level of pollution under control.

Scrubbers are the easiest and most efficient systems for purifying the air by removing particulates and/or gasses.

There are several types of scrubbers which are used in different industrial sectors.

Plants

FLUIDS GENERALLY INVOLVED IN THIS APPLICATION:

Scrubbers are generally used to:

  • wash fumes (e.g. emitted by boilers or furnaces) with soda or other liquids, in order to remove hydrogen sulfide, hydrochloric acid, hydrocarbons and sulfur dioxide.
  • depurate gasses (e.g. washing synthetic gasses with monoethanolamine in order to remove CO2).

Scrubbers are generally used by:

  • petrochemical industries
  • chemical and pharmaceutical industries
  • galvanic industries
  • packaging industries
  • food industries
  • cellulose industries

INDUSTRIAL PUMPS INSTALLED IN AIR TREATMENT AND FUME DEPURATION SYSTEMS

scrubber

The polluted air is directed inside a chamber where it comes into contact with the washing liquid which transfers the pollutants from the air to the water. The purified air is released into the atmosphere while the polluting particles become an integral part of the washing liquid, which is then collected in a tank.

During this process, the polluted air goes from the bottom to the top while the washing liquid is pushed up by the use of centrifugal pumps and then it goes from the top to the bottom through the scrubber. The washing liquid collected in the tank is then recirculated by means of horizontal centrifugal pumps installed on the ground or through vertical pumps installed directly inside the tank. The pump continues to recirculate the same liquid which, after the transfer through the scrubber, returns to the tank.

SPECIFIC REQUIREMENTS FOR THIS APPLICATION: WHICH ARE THE BEST PUMPS FOR AIR TREATMENT AND FUMES DEPURATION SYSTEMS?

Additives inside the washing liquid are often hazardous chemical agents. For this reason it is necessary to use anti-corrosion pumps.

The pump used in this process can be installed next to the tank or vertically immersed in it.

In both cases, GemmeCotti offers suitable solutions:

Horizontal centrifugal pumps:
– series HTM PP/PVDF (magnetic driven)
– series HCO (mechanical sealed)
are the best solution for the installation next to the tank.

Vertical centrifugal pumps:
– series HV (monoblock)
– series HVL (with bracket)
are the ideal solution for installation with the pump immersed in the tank.

All these centrifugal pumps are made of thermoplastic materials PP or PVDF, which ensure a great chemical resistance to the chemical agents used in this application.

GEMMECOTTI CENTRIFUGAL PUMPS FOR THE AIR TREATMENT

MAGNETIC HORIZONTAL CENTRIFUGAL PUMPS SERIES HTM PP/PVDF

Mag drive pumps HTM PP/PVDF have a sealless design that is particularly suitable to pump corrosive and dangerous liquids; the magnetic design together with the usage of anticorrosive thermoplastic materials, ensures the high chemical resistance and the absence of leakage and emissions.

GemmeCotti HTM scrubbers

Technical data:

– Capacity up to 130 m3/h

– Head up to 48 mlc

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HORIZONTAL CENTRIFUGAL MECHANICAL SEAL PUMPS SERIES HCO

Mechanical seal centrifugal pumps HCO are the best solution when the liquid has solids in suspension: their design with open impeller permits to transfer dirty liquids (non-abrasive solids – max. 5% – dimension max. 3 mm).

Technical data:GemmeCotti HCO scrubbers

– Capacity up to 60 m3/h
– Head up to 38 mlc

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VERTICAL CENTRIFUGAL PUMPS

Vertical centrifugal pumps are suitable for installations with the pump immersed directly in the tank.

VERTICAL CENTRIFUGAL MONOBLOCK PUMPS SERIES HVGemmeCotti HV scrubbers

Pumps series HV are available with different column lengths from 500 mm to 1000 mm.

Technical data:

– Capacity up to 40m3/h
– Head up to 22 mlc

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VERTICAL CENTRIFUGAL PUMPS WITH BRACKET SERIES HVL

Pump series HVL are available with different column lengths from 500 mm to 2000mm.

Technical data:                                                                    GemmeC

– Capacity up to 57m3/h
– Head up to 39 mlc

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Contact our commercial department, we will find together an interesting solution for your application: info@gemmecotti.com

 

 

 

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INDUSTRIAL PUMPS FOR BIG AQUARIUMS: APPLICATIONS WITH FRESHWATER AND SEAWATER

APPLICATION: THE PUMPING SYSTEM OF BIG AQUARIUMS

The fish tanks of big aquariums allow the public to admire many fascinating underwater creatures. Through hundreds of windows the enchanted visitors look at the wide variety of plant and animal species which populate lakes, rivers and oceans of the planet.

Aquarium pumps

The invisible and complex pumping system of big aquariums permits the survival of aquatic species in freshwater and seawater inside the exhibition tanks. The circulation and filtration of the water is possible thanks to the pumps which direct the liquid through the filter before returning it to the tanks.

The pumping system must guarantee the quality of the water by maintaining its main chemical and physical properties in order to recreate the natural habitat of the aquatic flora and fauna.

The pumps used in these giant freshwater and saltwater aquariums must be corrosion resistant and able to pump large amounts of liquid. Moreover the pumps must be silent to avoid the risk of creating a stressful situation that could alter the normal fish behaviour.

 

SPECIFIC REQUIREMENTS FOR THIS APPLICATION: WHICH ARE THE BEST PUMPS FOR APPLICATIONS IN BIG AQUARIUMS PUMPING SYSTEMS?

Pumps made of thermoplastic materials are recommended for large systems pumping saltwater or freshwater.

The thermoplastic materials used in the manufacture of GemmeCotti pumps are solid and lightweight and they don’t absorb water. Certainly, the best material for the construction of saltwater pumps is polypropylene (PP), a thermoplastic polymer with a good thermal, mechanical and abrasive resistance.

The use of this anti corrosion material, instead of the installation of pumps in metallic materials, avoids the risk of dispersion of metallic particles, which could harm the health of the sea fauna.

WHICH IS THE BEST TYPE OF PUMP TO CHOOSE?

Centrifugal pumps are the best choice for freshwater and seawater aquariums.

A centrifugal pump is made of a movable part called the impeller that forces the liquid under pressure in a desired direction.

GemmeCotti HTM 10 PP centrifugal pump

MAGNETIC DRIVE CENTRIFUGAL PUMPS

Centrifugal pumps can be designed with a particular system called magnetic drive.

Mag drive pumps have a sealless design that is particularly suitable to pump corrosive and dangerous liquids; the magnetic design together with the usage of anticorrosive thermoplastic materials, guarantees the high chemical resistance and the absence of leakage and emissions. Thanks to the total absence of emissions and leakage, the plant will always be clean; this feature coupled with the reduced maintenance required by GemmeCotti pumps, helps in keeping the plant efficient, secure and reliable.

The structure of magnetic drive pumps is really simple and requires very little maintenance with a consequent saving in terms of repairs and spare parts expenses during the pump life.

The use of mag drive centrifugal pumps in thermoplastic materials, such as GemmeCotti pumps series HTM PP/PVDF, is the best solution for working with fresh water and sea water. In particular, the smallest models of this series (HTM 4, HTM 6, HTM 10) are particularly recommended for the pumping system of big aquariums.

 

Check the technical data and download the complete catalogue!

 

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6 reasons to choose GemmeCotti chemical pumps

For more than 20 years we have been pursuing one main goal: design and produce magnetic pumps which meet the customers’ needs. That’s what drives us and makes us world-leader in the field of chemical pumps. So what are the characteristics of GemmeCotti pumps which make them unique and so appreciated by customers the world over?

1- Wide range of pumps among which the customer can choose. We have more than 400 pump variations so that we can always offer to the customer the right solution for his application. Each pump is customized according to many variables:

2- High quality pump materials. It’s important for us to offer the highest quality possible that’s why we choose only the best materials (Polypropylene, PVDF and AISI316) which can resist corrosion and which are suitable to pump almost every existing chemical. You can check out our chemical compatibility chart for more information and to select the right pump material for your application.

3- Best pump design for pumping chemicals. Magnetic drive pumps have a simple sealless design which is the ideal solution when handling chemicals and acids. The hydraulic part of the pump is hermetically closed so there is absolutely no leakage and emission of fluid. This is an essential characteristic because mag drive pumps guarantee safety for both workmen and the environment. Moreover the absence of any seal makes the pump highly reliable eliminating the maintenance and repair costs.

Typical pump design: The external magnet of the pump is placed on the motor shaft and when rotating it transmits the motion to the internal magnet thanks to the magnetic attraction of the two joints. The internal magnet is connected to the impeller which spins and moves the fluid through the pump. The external magnet and inner magnet are separated by a rear casing that creates a hermetic containment of the liquid that has no access to the outside.

Mga drive pumps

4- Chemical pumps completely Made in Italy. We are an Italian manufacturer and we are proud to offer high quality pumps designed, assembled and tested directly in our workshop. The pump parts are made and machined by our Italian suppliers all located near our factory. So, for us, suppliers play an important role in the resulting quality of the pumps. That’s why we choose and qualify them through a strict qualification process and we keep a close relationship with everyone in order to assure the highest quality of each pump part and consequently of the complete chemical pump assembly.

5- Every pump is checked and tested before delivery. What is the best way to assure the pump quality than try it personally? We perform rigorous tests during the whole assembly process according to ISO9001 based quality control standards. That is not all. We want to achieve zero defect rate, which is why we test every single pump at our test bench before delivery to our customer to check both the performances and the correct functioning.

6- Chemical pumps suitable for many applications. GemmeCotti industrial pumps can be used in various applications where chemicals, acids, dangerous liquids are involved, such as: chemical industries, waste water treatments, galvanic industries, surface treatments (zinc-plating, silver-plating, coppering galvanic treatments, chemical nickel plating) in machines and equipment for the printing industry, in machines for tanning industries, for printed circuit boards production, in scrubbers, air treatment plants, petrochemical and oil & gas industry, for biofuel handling, in textile industry, food industry and in bottling machines. Moreover GemmeCotti mag drive pumps can be used also for pumping salty water and water containing detergents.

chemical-industry

Contact our sales department and we will help you choose the right pump for your application.

 

 

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Do you know that GemmeCotti pumps can be used in car washing machines?

pumps in car washing plantsGemmeCotti pumps are used in many industries for different applications among which also car washing plants. Chemical pumps in car washes are installed with the main purpose of dosing and spraying water containing detergents and chemicals of various kinds through high-pressure jets. So it is necessary to use an efficient and reliable high-pressure pump to guarantee clean and shiny vehicles.

Our experience in car washes

We have a lot of experience in this particular field and recently we have worked on a new project which required a pumping equipment with very high pressure for a wheel rim cleaning system in a car wash machine. The customer required a pump suitable to transfer a detergent from a 40-liter-tank to the oscillating jets of the machine. The fundamental requirement for the pump was the discharge pressure which had to be at least 6 bar. We studied carefully the application and in the end we proposed our metallic rotary vane pump series HTP that can reach a maximum pressure of 13 bar.

High pressure vane pumps for car washing machines

The pump model HTP that we selected for the application is a positive displacement pump with vanes made of stainless steel AISI316. In this pump the vanes in graphite are mounted in a rotor and they move inside a cavity sliding into and out of the rotor. In this way the fluid is pumped outside the pump with a pressure up to 13 bar and a maximum flow of 2000 l/h. Click here

GemmeCotti rotary vane pumps model HTP

Mag drive vane pump HTP

to watch how a vane pump works.

Vane pumps model HTP in AISI 316 are suitable for detergents, hydrocarbons, solvents, heat transfer oils, refrigerants and cryogenics or other thin no-lubricating liquids. Thanks to the mag drive design these pumps are useful for low flow and high pressure applications such as car washes, pilot plants, sampling, flushing of mechanical seals and cooling units.

 

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