What is the maximum vacuum in a water jet ejector?

When discussing the maximum vacuum of a water jet ejector, we first need to understand how the water jet ejector works and how it is structured.

A water jet ejector is a device that uses a high-pressure flow of water to generate negative pressure. It works by creating a low-pressure area when a high-pressure stream of water passes through the injector’s nozzle, which attracts and draws in the surrounding air or other fluids, creating a vacuum.

However, regarding the maximum vacuum of a water jet ejector, it is not a fixed value, but is affected by a variety of factors, such as the pressure of the high-pressure water flow, the design of the nozzle, the nature of the suction fluid, etc. As a result, the maximum vacuum may vary between different water jet ejectors or under different operating conditions.

In addition, it is important to note that while a water jet ejector can create a vacuum, it usually does not reach very low levels, such as close to absolute vacuum. This is because the vacuum created by a water jet ejector is based on the principles of fluid dynamics and not on mechanical or physical methods such as vacuum pumps.

In summary, the maximum vacuum level of a water jet ejector is not a fixed value, but is affected by a variety of factors. If you need to know exactly what the maximum vacuum is for a particular waterjet ejector, it is advisable to consult the relevant technical documentation or consult the manufacturer.

What are the application scenarios of water jet ejectors

The application scenarios of waterjet ejectors are very wide and cover a wide range of fields:


Water jet jets are often used in agriculture to spray pesticides, fertilizers and irrigate crops. Its spraying methods are diverse, including fog, direct or fan spraying, etc., which can adapt to different agricultural needs. By adjusting the spray range and spray pressure, you can ensure that the crop receives the right amount of water and nutrients, thereby improving the yield and quality of the crop.

Fire fighting field

In the fire protection field, water jet jets are mainly used to extinguish fires. Its spraying methods, such as direct or fan spraying, can quickly cover the fire and prevent the spread of fire. In addition, it can also be used for spray cooling to protect the safety of firefighters.


Waterjet technology is also widely used in industrial fields, such as material cleaning, peeling, cutting, etc. Precise processing and handling of materials can be achieved through the high-speed impact of the water jet.

Vacuum and evaporation systems

Hydraulic ejectors (also known as water flush pumps) have important applications in vacuum and evaporation systems, such as vacuum pumping, vacuum evaporation, vacuum filtration, vacuum crystallization, drying, deodorization and other processes. This equipment is widely demanded in sugar, pharmaceutical, chemical, food, salt, monosodium glutamate, milk, fermentation, and some light industry and defense sectors.
Overall, the application scenarios of waterjet ejectors are very diverse, covering almost all areas where precise and efficient fluid handling is required.