Hydrochloric acid

The purpose of the application: hydrochloric acid and Aluminum anodizing.

hydrochloric acid metering pumpThis company deal with surface treatments, and there is a lot to do with an annual production of about 7000 tons of Aluminum. The quality of the finishes has distinguished this company in the market, making it among the most important companies in Italy in this sector. Evidently to reach this important goal, it is necessary to pay particular attention to all production processes, and especially those in the preliminary analysis, and control, before each processing step. The hydrochloric acid is widely used to perform the repeated chemical controls necessary to achieve a process of high quality finish that the company shall ensure. The sampling is done by drawing directly  from the baths the liquid to test, and subject it to various chemical controls. For dosing hydrochloric acid is used, a Hose Carrier HC 10 low pressure pump, with a fixed rotation speed, and particularly slow, in order to obtain a tubular membrane long lasting time. Ease to use, high reliability in the priming, and the absolute compatibility with the hydrochloric acid, allow this little HC 10 pump to make its important contribution in order to achieve the high quality standards desired by the company in the production processes. The Hose Carrier HC 10 is a pump of small proportions, but very sturdy and accurate, easy to use, does not suffer damage in case of dry running and is capable of developing a vacuum of 8 meters. Provides a instant and continuous self-priming effect. The tube membrane is compatible with a very broad spectrum of aggressive chemicals, its replacement is quick and simple and requires no special skills. Given the obvious talents shown by the first pump, the customer introduced a second unit as a complement to the first.

For more information on the pump : Hose Carrier HC 10

Chemicals products suction and transfer.

Pompa Hose Carrier HCP 5.0 con inverter su carrello

A well-known company engaged in the manufacture and sale of chemical substances and products destined to the car industry and transport, needed new pump for transfer chemicals with characteristics that are very variable. The raw materials and the products   made in the company are generally acidic or alkaline, dense or viscous, or very fluid, but with a tendency to determine phenomena such as foams. The operation which the pump has in charge start from emptying  the tanks for the transfer to production, to dosing into the container of the medium and the large proportion.

It is ideal that a single pump will be able to fulfil all the needs, adapting to the individual characteristics of the fluid, without complicated operations of adaptation. Among the various needs, there is also to move easily the machine in the manufacture areas according to the needs of the chemicals production cycle.

The company chose a Hose Carrier of the HCP 5.0-speed electronically variable, with a dedicated trolley. The pump can ensure to get a range from a few hundred litres up to 12000 litres times, work with thick fluids without difficulty, or pumping fluids, which generate foams without start this unwanted phenomenon. The full chemical compatibility of the pump avoid to prepare the machine for different tasks.

Granules, abrasive suspensions that may be present in the products, or processing waste contaminated can be pumped without any damage to the pump.

The presence of the inverter programmable allows simple dosing or interfacing with the sensors or the logic of the system that will be defined for the purpose. With a single pump, and no changes you will be able to pump many chemical based products or finished products such as, acids, bases, detergents, surfactants, degreasers, additives, solvents, emollients, and lubricants. Of course, the different viscosities are not a problem, as well as the possibility of priming capability that is guaranteed to dry without damage in the case of normal or intermittently operation, . Not bad for a single pump.

More informations on : Hose Carrier HCP 5.0

Pumps Hose Carrier and sewage electroplating sludge.

The object of application: Aspiration from tanks of muddy fluids  with suspensions resulting from electroplating and galvanic processes.

Hose Carrier HCP 3.5

The company has the need to aspirate from unground tanks various fluids arising from their production process. These fluids in addition to maintaining a variable chemical aggressiveness  (but always consistent), are also characterized by the presence of metallic particles accumulated during the various manufacturing processes. In the past were used pumps of various types, centrifuges, pneumatic membrane also submersibles. No pump previously used, has never solved the problem. For one reason or another, when you had the need to pump out some decanting, the pump designed was broken, does not prime, clog, worked well until the time but not now .It should be keep in mind that the nature of the fluid, as well as corrosive due to presence chemicals necessary to pre-treatment, also has the metal micro deposits.During the electroplating operation , the preparation of the products to be treated also provides cleaning cycles with bathrooms acids and alkalines that serve to improve the quality of the galvanic final treatment. In these baths that focuses a good part of the metallic particles. The combination of chemical corrosion and metal abrasion , creates a mix very damaging for the pumps, see why:

centrifugal pumps have their weak point in the system hydraulic sealing, constituted by the mechanical seal or rubber rings. The sealing system is resistant to chemical corrosion, but not against abrasion. After indefinitely time, but always too short the sealing system yields and the pump fluid releases can attack components not protected against contact of aggressive liquids.

The centrifugal pump as well, must be used below the level of the liquid to run correctly, poorly adaptations of a general service centrifugal pump is not a good choice. Also is not suitable for fluids transfer of  high viscosity media as sludge is.

But the sludge is generated, and must be removed in some way. The centrifugal pumps exist also in version self-priming, and are much more suitable to treat fluids with suspensions or slurries dissolved.

The times of priming of a self-priming pump are long sometimes up to15-20 minutes, if the pump takes air suction for some unfortunate reason, the pump must be reprimed, with consequent waste of time. When the levels in the tanks are minimal this phenomenon is guaranteed.

The centrifugal pumps run fast (2800 revolutions per minute) the sealing organs responsible to the barrier of the liquid, suffer for this reason, a strong abrasion occour due to the action of the rotation speed mixed to presence of particulate abrasive metal. In a relatively short time the pump loses its suction capacity and it will be necessary to set in on maintenance of the pump. The pump  must be completely removed to replace the sealing device, often this type of intervention is carried out by specific repairers in external workshops, this operation is not economically insignificant.

Let us come to the pneumatic pumps double diaphragm, cost perhaps less than all of the other, but beware, if you accept the cost of compressed air handling (considerable on balance).

The limited cost of purchase in relation to other pumps, attracts a lot. Diaphragm Pumps work quite well, better of centrifuges.

The limit in these pumps consists in the fact that there is a valves system to operate, especially in the suction phase and priming, all work fine in the presence of normal fluids. The situation changes in presence of sludge with solids. The valve system no longer provides a linear operation, when the valve does not work in a perfect way the pump loses the ability to prime and must be reprimed again. Are rather noisy even if this is a problem. The real problem is absence of preventive maintenance, when diaphragm breaks, the  the aggressive fluids spill out into the distribution system creating damage such as to have to replace it completely.

A few years ago that company purchased a Hose Carrier HCP 3.5, always in use, without too many concerns , even for reasons different from original needs . Once every year and a half, one tubular membrane is purchased and replaced internally at low costs.

More information on the Pump Hose Carrier HCP 3.5