FAQS

Quickly find a pump, pumping system, fan or generator replacement using our Product Selection Online (PSO) configurator or contact our sales department by phone/email or through the provided contact form, preferably including photos of the equipment.

Installation and operation instructions are provided with the products, containing all relevant information for troubleshooting. If this is not sufficient or if there are still doubts, you can always contact our After Sales Service.

Clean raw water free of solid or fibrous materials. Borehole pump allows a certain sand concentration.

Yes, it is possible as long as the pump is adapted with a cooling jacket. This component will guarantee water minimum velocity though motor frame surface for cooling. This solution is valid for any installation in open waters.

The maximum sand concentration allowed in well pumps is generally 25 g/m3. Higher concentrations will reduce the pump's lifespan, causing premature wear of its components and increasing the risk of blockages.

Most EFAFLU pumps have a mechanical seal suitable for the intended application, but can also be adapted to specific operating conditions informed by the customer. These conditions generally determine temperature, pressure, chemical resistance, viscosity or the presence of abrasive elements that affect sseveral mechanical seal components such as faces, springs, and seals as well as the most suitable flushing type.

Motor overheating can originate from electrical, mechanical defects or factors related to the surrounding environment. Electrical factors include network voltage flutuations, phase imbalances and degradation of insulation resistance in windings. Mechanical causes include a high number of starts, overload (absorbed power greater than rated power) or excessive resistance of moving components to rotation.

It is a centrifugal pump in which all rotating elements are immersed in the pumped liquid, ensuring their cooling and lubrication by the liquid itself.

Sanitary Hot water hydraulic networks are designed as closed loop systems. In these systems, geometric height is not accounted for; only pressure losses originating from pipe resistance and those located at the fittings are considered.

Threaded or flanged connection accessories along with its sealing gaskets must be requested separately, specifying the type and dimensions required. These accessories are included only in cases where the supplied pumps do not have standardized connections.

You should follow informations provided in the instruction and operation manual accompanying the equipment. This manual contains basic information for installation, operation, and maintenance operations. It is essential these instructions to be followed by the technician responsible for installation and subsequently by the owner or maintenance manager designated by him.

You can contact directly or by filling out the specific form provided online. It is important to identify the company or customer number so that we can expedite the response process.

The cooling jacket is a device that allows a more efficient cooling of submersible electric motor. This device is usually applied in submersible borehole or wastewater pumps.

If the system requires more flow than the pump was designed for, operating point will be close to or even outside the end of the performance curve. This situation can result in serious damage to the pump and motor.

An abrasive liquid contains solid particles with abrasive capacity that will cause premature wear of materials. An example of this are liquids containing silica particles (sand) which for a certain concentration can affect the equipment's performance and lifespan.

Corrosive liquids have chemical properties that accelerate the oxidation process of metals, so it is important to know these properties before selection. Similarly equipments with polymer-based compositions may be externally attacked by UV rays.

This noise occurs due to the high fluid velocity inside pipes which can result from an inadequate section, points of constriction or opening/closing of valves. One possible solution is to reduce the pump flow rate to achieve an improvement in hydraulic balance.

The hydraulic balance of a system is achieved whenever there is no excess or deficient water supply for any of the consumers or consumption points.

It is a submersible pump equipped with a cooling jacket that provides adequate cooling to the electric motor. In this type of installation, although it is submersible, only the internal components of the pump are in contact with the pumped fluid.

On EFAFLU website, under the "products" tab, you will find all detailed information about each EFAFLU equipment. You can also search for equipment through "Areas of Activity" tab where you will find a variety of solutions for each area. You may also try our Product Seletion Online (PSO) which allow you to freely select products by type or application. Finally, you always have the option to request our technical support by contacting us directly.

A generator set (generator) is equipment designed to convert thermal energy into mechanical energy (combustion engine) which drives an alternator that will convert mechanical energy into electricity. The engine and alternator are directly coupled and fixed on a common base along with other essential elements such as: • Batteries and plug kit. • Fuel tank / chassis structure. • Control panel. • Load transfer panel. • Silencer.

The choice between a single-phase or three-phase generator depends on the type of loads you intend to connect. Single-phase voltage is usually related to lower power equipment and low energy consumption, such as household appliances in residences. Three-phase voltage is associated with larger equipment, such as appliances with high-power motors in industry. Three-phase generators are more compact and lighter compared to single-phase generators, due to the more efficient use of their windings.

Generator maintenance is crucial to prevent equipment damage and ensure proper operation. After installation and commissioning, it is essential to perform preventive maintenance operations, which should be carried out by qualified technicians. Here are some suggestions from EFAFLU to extend the life cycle of your generator: • Perform equipment checks twice a year. • Inspect and tighten connection cables on the alternator/control panel. • Regularly clean dust and dirt. • Operate the generator every three months. • Be careful with water ingress. • Replace valve cap every 1000 hours operation. • Replace regularly Fuel, Oil and air filters. • Check batteries health.

A generator with a Diesel engine stands out for being available in several power ranges, consuming less fuel, thus promoting superior efficiency in energy supply, offering greater durability and a longer lifespan. Additionally, maintenance of a Diesel engine generator is more accessible since these engines technology doesn’t use carburators or spark plugs.

Maintenance is vital to ensure the safe and efficient operation of the generator, as well as to prolong its lifespan. However, even with regular maintenance, unforeseen failures in the operation of the generator set can occur. Here are some reasons that may be responsible for a non start: • Battery failure. • Air in the fuel system. • Fuel leakage. • Carbonization. • Problems with circuit breakers or fuses.

An air curtain is a ventilation device that establishes an air barrier to prevent heat exchange with the external environment, without the need for physical space isolation. This air barrier acts as thermal insulation, contributing to maintain internal temperature of the space. In addition to its high efficiency, air curtains also protects the environment from contamination by dust, insects, pollution and unpleasant odors from the outside, thus promoting a more hygienic environment.

No. Air curtains promotes the recirculation of indoor air by forming an air barrier at outside access. Conveyed air is pre-heated/cooled by the installed air conditioning. In some models, however, it is possible to have heating batteries as option.

Air curtains play a crucial role in insects control due to created air barrier. This barrier prevents insects from entering enclosed space keeping them away. As a result, air curtains help ensure a more hygienic and comfortable space while reducing the need for chemical products or repellents for pest control, highlighting the importance of these systems especially in places related to food products and hygiene and health care.

Industrial fans play a vital role as part of the broad context of air conditioning, industrial ventilation, not only disperses contaminants in the ambient air but also dilutes concentrations of gases, vapors with the aim of promoting thermal comfort and a healthy environment for employees.

Centrifugal fans have axial suction and radial compression. The configuration of their impellers can provide relatively high operating pressures, ideal for industrial applications.

Axial fans have axial suction and compression (in line). The configuration of their propeller allows obtaining relatively high flow rates, ideal for applications where it is necessary to move large volumes of air.