Farm field wells

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Farm wells are used to supply water to irrigate the fields or for other agricultural purposes, including to supply catch basins. Well pumps are most commonly used to bring potable water to the surface from wells and springs. Collectively, well pumps include a series of other pump types, such as jet pups, submersible pumps, and others.

Well pumps can be used for other applications besides water collection, such as to drain cisterns or reservoirs, and can pump other material besides water, including petroleum or natural gas and, less commonly, chemical and petrochemical products, hazardous materials, sludge and waste water. While they are mainly found in domestic wells, water distribution services, and mining and other fuel production applications, they can also be found in the building construction industry and commercial services.

 

Well pumps and electric pumps

Long gone are the days when a bucket tied to the end of a rope was used to get water from a well. Pump technology has put an end to this rudimentary method. A well pump uses centrifugal force to convey water from the underground reservoir to your home, ready for use. The depth of your well will determine what kind of well pump you’ll need.

In urban and suburban areas, most people have almost constant access to clean, potable water. In rural areas, however, millions of homes rely on wells for their water supply. A well pump is an electromechanical device installed after drilling or digging a well. Its purpose is to pump water from the well to your home. An electric motor powers the pump, which pushes the water from your well through a jet or pipe.

 

When to choose an electric pump

When it comes time to choose the right pump for your well, the most crucial factor is the depth of the well, in other words, how far the water has to travel to reach the ground surface. Electric pumps provide numerous advantages compared to fuel and diesel powered pumps, making it the best choice for construction projects, mining and public services. There are as many well pumps as there are requirements.

Be that as it may, choice factors often depend on water depth and well diameter. Some electric pumps are made for special purposes, such as boosting water pressure or offering secondary water a way out, such as in the case of a distillation system. Jet pumps draw water while submersible pumps push water upward. Since pushing water requires less energy, submersible pumps are often the most efficient choice for deep wells.

The choice of a jet pump or a submersible pump will likely depend on the depth of your well and your willingness to have a higher water flow rate system that is considered to be more suited to farming fields.

 

Choose Pompe Zanni

At Pompe Zanni, we have been delivering competence and professionalism since 1967, supplying, installing and taking care of well pumps suited to meet every one of your needs. When the well water system has problems, Pompe Zanni’s team of specialists can diagnose the malfunction and get the system working again in no time. We have been promoting the best liquid pumping technology for more than 50 years.

If you need to repair or replace a well pump or want to schedule a check-up to prevent problems and a long downtime period from happening, contact the technicians at Pompe Zanni today for more information. Our goal is to satisfy all your needs.

Industrial pumps

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Industrial pumps are widely use to provide cooling and lubrication services, for fluid conveyance, and to provide driving force to hydraulic systems. Most industrial facilities as well as commercial and apartment buildings use pumping systems in their daily operation. In the manufacturing sector, pumps account for nearly one third of electricity consumption. In commerce, they are primarily used for HVAC systems, water management, and heat transfer.

 

High-capacity industrial pumps: reliable and always doing the job

Pumps can meet diverse demands, that’s why the market offers numerous types. The choice depends on the application and requirements because there is a specific pump for every job. Zanni offers simple, low-priced pump designs for most applications that have to do with water supply and distribution, irrigation, and conveyance of chemical substances in petrochemical plants that involve low-viscosity fluids like water, solvents, chemical products and light oils.

Zanni pumps are perfect for applications involving high-viscosity fluids such as dense oils, slurry, emulsions, foods or biological fluids.

 

Wastewater pumps: peristaltic pumps

Water is an amazing asset, a building block of life. Living beings such as human beings, plants and animals can’t survive without it. The same holds true for cities, which rely for their existence on a readily available supply of water and the capacity to supply it consistently to homes, industries, hospitals and community centres.

Many large industries use water as an industrial equipment cleaning or cooling agent so their operations would stop without a water pump. In cases such as these, water is often a waste product and must be treated or discharged. Now that greater attention is being placed on environmental responsibility, properly managing and treating wastewater is becoming increasingly crucial.

With water playing such a critical role, there is a fundamental need for pumping technology that can manage water – from its purest form to the dirty waters of a water treatment plant – efficiently, reliably and safely. Peristaltic pumps come into play here because they are suited to any type of demand.

At Pompe Zanni we can deliver the best systems, including peristaltic pumps to handle wastewater from the pharmaceutical or industrial sectors. It is also worth noting that wastewater can be especially troublesome for pumping equipment because it could be contaminated with abrasives or solids that could damage the pumps or with hazardous materials that must be kept in check to safeguard the safety of personnel, the plant and the environment.

 

Why does it pay to turn to a brand that has been in the market for 50 years?

Choosing the right pump is crucial for the operation of an industrial concern yet often, it isn’t as simple as it seems. That’s because each pump has dozens of different specifications. At Pompe Zanni, however, the selection of pumps for industrial applications is wide.

Contact our staff. They will help you choose the best pump for the requirements of your system. If you’re looking to buy and install a new pumping system, turn to the experts at Pompe Zanni who have been ensuring reliability, professionalism and innovation for over 50 years. Our technicians are constantly trained to deliver the best service to customers. Contact us today to learn more about our products. Pompe Zanni, serving the needs of customers since 1967!

Horizontal Pumps: what they are and how they work

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Horizontal pumps are special systems that are able by means of rotary movements to move a liquid from one place to another. These machines are used in very different areas: from agriculture to industry to building construction, they have become practically indispensable. Precisely because of their great versatility and simplicity of use, they are used throughout most of the world for a wide variety of purposes.

In addition to horizontal pumps, there are also other types with different sizes, shapes and characteristics that make these machines the solution to a wide range of needs. In particular, in this article we will learn about horizontal pumps, how they operate and what they are used for. Before purchasing these machines, it is important to be familiar with the different models and characteristics in order to find the one that best suits your needs.

In this article, the topics covered are:

  • Definition of horizontal pumps
  • What are electric horizontal pumps?
  • What does centrifugal mean?
  • What are the advantages of this type of pump?

Then we will list the solutions offered by Pompe Zanni for those who need horizontal pumps.

 

Definition of horizontal pumps

A horizontal pump is a special fluid-dynamic system designed to move a given liquid with the force of its movement. In order to work, they need to be primed, meaning they need to be filled with liquid before starting.

Here is basically how it operates:

  • the fluid impacts with the impeller
  • and is accelerated by it
  • it flows radially outward
  • the fluid exits from the diffusor

 

What are electric horizontal pumps?

Electric horizontal pumps are used in a number of different sectors: fire-fighting systems, irrigation, artificial snowmaking, and also for mine drainage, washing, pumping stations, pressurisation installations and much more. Their particular feature is the electrical operation, but let’s look at the elements that make up electric horizontal pumps:

  • The housing
  • The inlet valve is protected by a screen that serves to filter impurities
  • Impellers with blades
  • A safety valve, which protects the horizontal centrifugal pump from water hammering
  • Pressure gauge
  • Automatic valve

These systems are an excellent solution when dealing with a fluid with physical characteristics similar to water, i.e. with viscosity values from 1 to maximum 100 CPs, or if the fluid to be treated does not contain solids or air and if the product remains unaltered even when subject to high rotation speeds.

What does centrifuge mean?

The term “centrifuge” refers to the physical principle of centrifugal force. They are called centrifuges precisely because of the way they work. These systems use rotation to give speed to a given liquid, converting it into energy by means of pressure. More precisely, electric centrifugal pumps follow these two phases to generate energy:

  • The energy is imparted to a liquid in the form of velocity.
  • Kinetic energy is converted into pressure energy.

The key components of this machine are the impeller and the volute. The impeller spins in a swirling circular motion, while the volute collects the continuous flow and transforms it into a physical process of constant energy.

 

What are the advantages of these pumps?

There are numerous advantages of using horizontal pumps, and they are widely popular on the domestic market for the reasons given below:

  • High number of shaft revolutions, which allows the use of electric motors and turbines as rotation mechanisms.
  • Possibility of a gradual decrease or increase in power.
  • Simplicity of construction.
  • Comparatively low cost.
  • Ability to use an automated control system.
  • The fluid can be drawn into the pump from a great height.
  • Reliability of operation.

 

Pompe Zanni horizontal pumps

Choosing Pompe Zanni horizontal pumps means being able to take advantage of systems that can handle large flows of liquids, while maintaining very high product transfer efficiency thanks to tight internal tolerances.

Here are some of our products:

See all the other models available here.

How to choose a submersible electric pump for industry

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The industrial submersible electric pump is a very useful system for a variety of industrial sectors. This hydraulic mechanism offers many possibilities of use when it is necessary to move large quantities of water. Just think of the essential contribution of these pumps in the construction industry and during the design of an industrial plant. In both cases, the movement and withdrawal of water is indispensable.

In addition, its electrical operation is useful for counteracting gravity and thus enabling faster movement of liquids from point A to point B, even if there are differences in level with a more or less steep slope. But how do we choose an industrial submersible electric pump? First of all, we need to be clear about the existing types and understand the requirements the pump has to respond to. This article describes the most important things to know.

 

Electric pump for industrial applications

There are many different industrial applications that require the presence if a submersible electric pump. From agriculture for irrigating fields, to designing a septic tank, to pumping sewage. Before choosing a submersible electric pump, there are three fundamental aspects to consider in order to find the solution that is right for you.

  1. Type of use. The first thing to do is to have a clear idea of the performance features and type of use required of the hydraulic system.
  2. Type of liquid. You need to pay particular attention to the liquid that has to be moved through the pump, which is not always water, especially in industrial settings.
  3. Quantity of water. You need to assess how much water you actually need to move and opt for models that can satisfy your needs.

In addition, it is important to define what the essential characteristics of a submersible pump are, namely:

  • Maximum immersion depth
  • Automatic or manual operation
  • Safety system in the event of water shortage
  • Diameter of the outlet necessary to pump the liquid at the performance level required by the system
  • Weight of the product
  • Dimensions of the electric pump
  • Length of the power cable and related thickness, as well as the IP degree of protection.
  • Resistance to the level of water acidity and construction material
  • Operating voltage
  • Size of the solid waste that it can break down
  • Maximum temperature of the liquid
  • Solar adaptability

 

Purchasing an electric pump for industrial use

Moving large quantities of liquids from one point to another is a need in various industrial sectors, and the solution is a submersible electric pump. Precisely for this reason, there are a number of different models of industrial submersible electric pumps, the choice of which is mainly dictated by the type of application it will be used for.

Among the essential requirements for making the best choice, in addition to those already specified, you need to consider:

  • the power that determines the quantity (Q) to be pumped within a given time
  • the flow rate (litres per minute or cubic metres per hour)
  • the column height (H) to which the liquid can be conveyed
  • the head (metres).

So purchasing an electric pump for industrial use is anything but simple. The first step to take in order to make the right choice is to rely on experts like those you can find at Pompe Zanni.

Electric hydraulic pumps: what they are and the advantages they offer

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Electric hydraulic pumps are special mechanical devices that can move liquid vertically and horizontally depending on the different requirements. Hydraulic pumps differ for the motive force that drives them, and these include pumps that are electrically operated. So let’s look at the features, advantages and main types of these devices, which are extremely useful in a number of different sectors.

What are electric hydraulic pumps?

The main characteristics of electric hydraulic pumps that should always be taken into account are the flow rate and head. Depending on the type of use and the specific requirements of the area in which the device is used, we can choose the pump that meets our needs.

Let’s take a closer look at what is meant by flow rate and head.

  • Flow rate: is the quantity of water, or liquid, moved by a pump in a unit of time. It therefore expresses the ratio between volume and unit of time, generating a litre/minute value.
  • Head: is the maximum height that a pump can move fluid against gravity and is indicated in metres. This characteristic is fundamental in order to know if the pump is right for our application.

Specifically, the operation is generated by a motor which is this case is electric.

 

The advantages of electric hydraulic pumps

These fluid moving devices are helpful in a number of different areas. Consider the need in agriculture to move large quantities of water for irrigating fields, but there are other applications. Electric hydraulic pumps are also indispensable in the oil, chemical, and metal industries.

This is obviously because they offer a number of advantages:

  • recovering water in a well and bringing it to the surface
  • recirculation of liquid to specific pipes
  • cleaning water inside a swimming pool
  • moving water form a cistern to individual houses
  • desalination of water by means of hydraulic pressure.

 

Main types

There are different types of electric hydraulic pumps depending on the type of use. Below we list the most important features that define the main models and the individual uses.

  • Centrifugal pumps: are used to apply more pressure to the water and to convey water to or from a tank, to supply an autoclave, for pressure washing systems, for filling tanks and swimming pools, for irrigation, as well as all other needs related to simple level movement or pressurisation.
  • Submersible pumps: are used for extracting and pumping from the subsoil and at the same time providing pressure at the outlet, in order to supply a column of water in a vertical direction. They are equipped with a watertight motor that allows them to be installed submerged in the liquid, even at considerable depths.
  • Self-priming pumps: combine the function of centrifugal pumps and submersible pumps. They are used for extracting and pumping liquids from the subsoil and at the same time to give pressure at the outlet. They are mainly installed near a well.
  • Immersible pumps: are used for extracting and pumping liquid from tanks or swimming pools. One of the most common uses is for emptying flooded garages or cellars or for septic tanks. They are equipped with watertight motors in order to be immersed and are able to push sludge or sewage in a vertical direction.

Causes and prevention of cavitation in a pump

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Cavitation in a pump is a physical phenomenon that affects all hydraulic systems and machines in general. This particular effect manifests with the formation of small bubbles, whose immediate collapse causes micro jets at very high pressure that can cause even serious damage.

One of the most common mechanical failures in a centrifugal pump is cavitation. Like all mechanical equipment that has been in service for several years, also pumps can be subject to damage to their components due to wear and tear.

 

Cavitation in a pump: how it happens

This phenomenon originates in nucleation, i.e. the origin of very small cavities that can constitute nuclei for the growth of macroscopic bubbles that will collapse shortly afterward. More precisely, this process can happen in two different ways:

  • Homogeneous: when the thermal motions inside the liquid create microscopic voids that can turn into bubbles.
  • Heterogeneous: when the presence of microparticles is detected which are dispersed in the primary fluid or caused by the roughness of the walls of the duct containing the fluid.

The tendency toward cavitation in a pump can be correlated to the presence of high head, significant hydraulic pressure losses in the suction line, considerable difference in level between the pump and suction tank, and high vapour pressure of the sucked liquid.

 

Cavitation in a pump: causes and consequences

The causes of cavitation in a pump can be many and varied. From improper use by the operator, to the quality of the products of centrifugal pumps, and so on. Pompe Zanni products easily pass all the inspection procedures, making the pumps less prone to this type of problem, precisely because they are built using the best materials available.

In the working state, the operating environment of the centrifugal pump and the influence of operating factors represent the largest part of the relationship between cavitation and the centrifugal pump.

The collapse and implosion phase releases an amount of energy that can cause major damage to the system. The main harmful consequences can be summarised as follows:

  • worsening of pump performance due to the turbulence caused by cavitation. In terms of efficiency, it is estimated that a decrease of at least 3% is due to this phenomenon.
  • Excessive vibration of the pump, which causes noise.
  • Deterioration of the pump’s internal components, due to the collapse of the bubble near the wall of a component. In this case a liquid microjet (impinging jet) is generated, which erodes the solid surface and forms what are called “erosive pits”. The area where this phenomenon occurs most frequently is at the outlet of the impeller, because in this section there is a temporary depressurisation of the liquid, followed by a subsequent increase in pressure.

 

Cavitation of a pump: prevention

To prevent cavitation, the pressure of the liquid at all points must be below the saturation pressure. Some useful tips are:

  • Use pumps in series or a multi-stage pump to reduce the head of the single pump (or stage)
  • Increase the diameter of the pipe and/or decrease the length of the suction path
  • Use a submersible pump or otherwise place the pump at the lowest possible level
  • Reduce the temperature of the liquid (lowers the saturation pressure)
  • Decrease the pressure drops in the pump
  • Reduce the flow rate in the pump
  • Decrease the impeller speed
  • Increase the pressure at the pump inlet

 

 

Electric hydraulic pumps: types and advantages for every use

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Electric hydraulic pumps have the specific function of moving the flow of water through a mechanism powered by electricity. These systems can be the solution for recovering liquids in different sectors and situations, from industrial to agricultural use, and for domestic use for smaller devices.

In any case, the main element of electric hydraulic pumps is the motor, which enables the pump to perform its task of recovering the flow water. The energy produced by the electric motor enables the movement of water or a specific liquid from one point to another. But let’s take a closer look at what electric hydraulic pumps are and which types are present on the market.

 

What are electric hydraulic pumps?

Electric hydraulic pumps are systems that have a specific structure mainly divided into 3 parts:

  • suction, i.e. the inlet of the liquid, positioned in line with the central axis of the electric pump;
  • the electric motor that moves the impellers, which in turn push the liquids to the centre of the pump outwards;
  • the outlet, where via the electric impulse the energy is transformed into pressure, or head, which pushes out the recovered liquid.

All Pompe Zanni electric hydraulic pumps guarantee an optimal mechanical seal of this process, thanks to which the recovered water is prevented from passing through the motor and consequently interrupting its operation.

The maximum performance of a hydraulic pump is achieved when the flow rate is zero. In this way, having no displacement of liquids, all the energy will be transformed into hydrostatic pressure.

On the other hand, when the flow rate is higher, the water pressure decreases. This is because the energy will be used to move the water towards the outlet.

 

Advantages of electric pumps

Choosing an electric pump means being able to rely on a fundamental tool for different applications. Electric hydraulic pumps can provide a number of advantages for:

  • recovering water in a well towards the surface;
  • circulating the water and moving it towards specific piping systems such as radiators;
  • cleaning the water of a swimming pool by filtering it;
  • moving the water collected in a cistern towards different houses;
  • desalinating water by exploiting the hydraulic pressure.

 

The main types of pumps

There are various types of these systems. Very briefly, they can be classified according to:

  • the direction of the flow that passes through it, distinguished as: centrifugal, when it is necessary to provide high head with low flow rates, and axial, when it is necessary to provide low head at high flow rates.
  • The axis, which can be horizontal, vertical or inclined.
  • The pump casing, which can be on the surface, submerged, or coaxial, depending on the position of the liquid to be moved.
  • The number of impellers, distinguished as single-stage pumps, i.e. with a single impeller, or multi-stage pumps.
  • The material, which can be metallic or thermoplastic.

In addition to these particular characteristics, there are other criteria for distinguishing different types of pumps. It is very important to differentiate monoblock pumps and magnetic drive pumps.

  • Monoblock pumps: have the casing and impeller machined from the billet in order to make the most of the mechanical characteristics of the thermoplastic material. These pumps are optimal because they do not have the typical defects of moulding such as voids, burns or deformations.
  • Magnetic drive pumps: in which the power of the motor is transmitted to the pump impeller without contact and by means of a magnetic coupling, making any liquid leakage impossible. These pumps are the ideal solution when dealing with corrosive liquids.

 

Choosing the right irrigation pump

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Irrigation pumps can be used to do various jobs in agriculture.

They can be used to draw up water from a well or to recover rainwater stored inside a tank.

Choosing the right pump depends on several factors. The first element to consider is the sizing of the pump.

Calculating the right irrigation pump

The first step in defining the specifications of the ideal pump is the sizing.

When we talk about pump sizing, we are referring to the hydraulic performance it has to deliver so that the tool distributes the predetermined amount of water as needed.

The two fundamental aspects involved in this are its flow rate and head:

  • the flow rate indicates the amount of water the pump can shift in a given period of time;
  • the head indicates the difference in level that the water can overcome thanks to the pump’s action, i.e. the difference in height between the point of intake and the point of delivery.

“Drip” irrigation systems are among the systems where irrigation pumps are used most frequently.

Drip irrigation pumps and agriculture

Drip irrigation is also known as micro-irrigation, i.e. a slow, drip-by-drip irrigation system enabling plants to be watered uniformly while avoiding wastage of water.

Surface pumps and submersible electric pumps are used in this type of system in order to draw water up from wells and tanks.

Pompe Zanni has a wide range of vertical-axis centrifugal pumps, powered by tractors, diesel engines or electric motors, and can draw up water from depths of up to 300 metres.

What do you need for your agricultural jobs? We are confident we have the right solution for you.

Come and have a look at our products and get in touch for further details and a quotation.

Submersible pumps: application and how they work

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Submersible pumps are versatile and effective devices used in a variety of applications, including industry, civil engineering and agriculture.

Submersible well pumps and fields of application

Among their many applications, submersible pumps are used in fire-fighting systems and pumping stations as well as to draw primary water from wells.

In industry they can be used to carry purified water, while in agriculture they can support irrigation systems and other water systems used in cultivation.

Submersible pumps: how they work

Submersible pumps differ from surface-mounted pumps in that they operate while submerged in the water that they are required to pump. The width and depth of the well are, therefore, important details to consider in choosing one over the other.

The level probes, the main feature in our pumps, are remotely controlled via a control panel on the surface. This component has an important monitoring and protection function.

The most suitable option should be chosen depending on the flow rate, head and motor power that your specific use requires.

At Zanni we manufacture two different types of submersible pumps:

Both versions have been designed down to the smallest detail. Every material has been carefully selected and every piece undergoes stringent quality controls.

At Zanni we produce a comprehensive range of pumps for any need and walk the customer through the steps to select the most suitable product.

What’s the best solution for your needs? Contact us for our expert advice on the best submersible pump and to discover our models.