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Introduction to types of ejectors – What is a fire pump ejector?

  • February 16, 2025

What is an ejector? One of the equipment used in many industrial systems related to fluids are different types of ejectors.

Due to their variety and wide application, these devices help engineers working in industries to achieve their final goals.

Imen Datis Asia Technical and Engineering Company is one of the top providers of fire alarm and extinguishing equipment, all types of fire fighting and water supply pumps, etc. in the country, with the aim of increasing safety and protecting people’s lives and property.

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What is an ejector?

Ejectors are generally equipment used to move, compress, or mix gases, vapors, liquids, and solids.

These tools are mostly used in air conditioning systems and are especially important in cold storage.

Ejectors are used in various industries and, with their diverse functions, play a key role in increasing the efficiency of industrial devices.

These devices are usually made of different metals and materials, which makes their performance different from each other.

Continue reading to learn about the types of ejectors and their uses.

To better understand ejectors, you should know that one of their most important uses is to create a vacuum.

In places where a vacuum exists, evaporation and distillation under vacuum are possible. Ejectors can also be used to transport and pump water, other liquids, and air.

Other important applications of ejectors include environmental ventilation and the removal of contaminated particles in fluids. Ventilation devices or ventilators are usually used to evacuate contaminated air from closed environments, such as tankers.

Ejectors can operate 24 hours a day or in multiple stages and continue to operate with minimal errors.

These features of ejectors depend on the type of industry in which they are used.

Ejectors are made up of various parts, which we will introduce below:

  • Visiting cover
  • Sprinkler
  • Steam filter
  • Sprayer cap
  • Water vapor inlet
  • Inlet cover
  • Sprinkler inlet
  • Pressure-to-velocity converter or ejector hose

What are the types of ejectors?

Ejectors are divided into three categories based on the type of fluid used as the driving fluid: steam ejectors, water or other process fluid ejectors, and air ejectors.

Each of these ejectors has specific uses, which we will discuss later in the article.

Steam ejector

As mentioned, car wiring problems and fluid leaks are among the dangerous factors that can lead to car fires. In some cases, fires occur even when the car is off. The question may arise as to whether a car that is off can catch fire? What causes a car to catch fire when it is off? The answer is that two wires may accidentally connect together and create a voltage that, if the car has a fluid leak, can lead to a fire, even if the car is off. Some of the reasons why a car that is off can catch fire include:

– Car battery problems
– Alternator failure
– Defects in other electrical components of the car

Water ejector

Water ejectors are used to increase the pressure and velocity of water at the outlet.

One of the most obvious examples of the use of these ejectors is seen in car wash hoses.

If you’ve been to a car wash, you’ve probably noticed that their water pressure is very high.

In these systems, a water ejector is used at the hose outlet to create more pressure for cleaning with less water consumption.

This example is one of the smallest applications of water ejectors.

The way these ejectors work is that water enters the ejector and encounters air and a narrow tube at the outlet, which increases the water pressure.

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Air ejector

These ejectors operate similarly to steam ejectors, and their main function is to create a vacuum.

The function of these ejectors is to convert steam into the atmosphere, which in large ejectors may produce a loud noise; therefore, the use of a silencer is essential in these cases.

The main application of this type of ejector is in distillation and refrigeration processes, which makes them very important equipment.

These ejectors are used in various industries, and the devices that use these ejectors are typically large and bulky.

Fire pump ejector

The fire pump ejector is a device that has a very high efficiency with its simple design. This ejector is used to drain fluids from warehouses, wells and other places. Also, in cases where the main water tank is in an inconvenient location, the ejector can be used to move water. Ejectors are designed in such a way that, by using the Venturi effect, pressurized water creates a vacuum and sucks liquids that need to be removed from the environment. Some people also know this device as a Venturi or suction pump.

How a fire pump ejector works

The driving force in the ejector is a venturi or suction pump. This device works by forcing water under pressure through a hose into the turbine inlet, and on the other side of the device, through a second hose, the liquids in the environment are expelled along with the water.

Components

  • Cockroach
  • Hook
  • Ejector body
  • Venturi

Fire pump ejector features

  • Light weight
  • Easy to carry
  • Possibility of transporting flammable liquids
  • Made from high-quality aluminum alloys with T6 heat treatment
  • Ability to drain liquids and debris from the floor
  • Insensitivity to dust and ability to operate in dry mode
  • Using water power without the need for an electric drive
  • Inlet and outlet connections comply with BS336 and Storz DIN standards
  • Meets DIN 14 422 standard

These ejectors, with their unique features, are very effective and efficient in different conditions and for various applications.

Imen Datis Asia Company, as a company approved by the fire department, in addition to consulting in order to obtain fire department approval, is an importer and supplier of all types of fire equipment, including fire pumps, fire valves, fire alarm and extinguishing equipment, and all types of fire sprinklers. It is one of the best and most reliable domestic and foreign brands.

For more information and price inquiries, please contact our experts.

Frequently asked questions
  • Fire pumps
  • Tobacco dehumidification
  • Film production in the plastics industry
  • Urea production
  • Extruder degassing
  • Drying processes
  • Deodorization of edible oil
  • Steel degassing
  • Chemical industry
  • Water desalination
  • Vacuum distillation
  • Natural gas extraction and processing

1- Lightweight and portable by one person.

2- Easy to use.

3- Transport flammable liquids easily and without risk.

4- Environmentally friendly, due to the lack of water loss and cleaning the environment from liquids harmful to nature.

5- Made of high-quality aluminum alloys with T6 heat treatment.

6- Clean water used to rotate the turbine is recycled without mixing with the flowing fluids.

7- Removes liquids and residues from the floor.

8- Insensitivity to dust and dry operation (a state where fluid does not flow inside the pump)

9- Compliance with DIN 14426 standard.

10- Inlet and outlet connections comply with BS336 and Storz DIN standards.

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Imen Datis Asia Company, relying on up-to-date knowledge, continuous activity and cooperation with highly specialized forces, is now recognized as one of the leading private sector companies in the field of safety and fire fighting industry. This company is always trying to continuously and dynamically play a role in expanding the safety and fire fighting infrastructure of our beloved country of Iran and take great steps towards achieving goals such as the development and industrialization of new technologies.

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