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Home / Products / Pneulead / Pneumatic Vacuum Units / Vacuum Ejector

Pneulead Vacuum Ejector Wholesale

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Wholesale Pneulead Vacuum Ejector Manufacturers

A vacuum generator is a new, efficient, clean, and economical small vacuum component. It uses a positive-pressure air source to generate negative pressure, which makes it very easy and convenient to obtain negative pressure in the pneumatic system where there is compressed air or where positive and negative pressure is needed.  Vacuum generators are widely used in machinery, electronics, packaging, printing, plastics, and robots in industrial automation and other fields.

 The working principle of the vacuum generator is to use the nozzle to spray compressed air at a high speed, forming a jet at the nozzle outlet and producing a coiling suction flow.  Under the effect of it, the air around the nozzle outlet is constantly sucked away, and the pressure in the adsorption chamber is reduced to below atmospheric pressure, thus forming a certain vacuum degree. PZH series vacuum generator includes box type and direct piping type.  Box type with built-in muffler, direct pipe type invalid sound device. The highest vacuum type S is -88KPa, and type L is -48KPa. PZU series of straight tube type vacuum generator pipe type design, does not need special installation. Standard with quick change connector, easy to take over. Due to the use of resin as material, lightweight. The standard model has no copper specification.

About Group

PNEUMATIC SYSTEM PROFESSIONAL SOLUTION

Ningbo Sono Manufacturing Co., Ltd. is China Vacuum Ejector Manufacturers and Wholesale Pneulead Pneumatic Vacuum Ejector Suppliers, which has a history of 25 years in pneumatic field. Our company has set up Zhejiang provincial research and development center and hired domestic and overseas engineers，we have powerful exploiting capacity, we produce six series of products as following: Air source treatment, Pneumatic control elements, Pneumatic act elements, Air press punch, Pipe fittings and Pneumatic tubes, electricty control cylinder. We have the ability to supply the whole set of pneumatic system. Adopting the international advanced technique and machine equipment, we have passed ISO9001:2015 and got CE, ROHS certifications. And developing actively the market of home and abroad and building a wide sales net and after-sale service system. Satisfactory service to customers.
Meanwhile, we won “National High and New Techno-logy Enterprises”, ” Technology Innovation Model Company” and so on. STNC brand has been Famous Brand in Zhejiang province, STNC products have been regarded as brand products in Zhejiang province, selling well all over the world.

Ningbo Sono Manufacturing Co., Ltd.
Ningbo Sono Manufacturing Co., Ltd.

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Industry Knowledge Extension

How do Vacuum Ejector contribute to its overall functionality?

Vacuum ejectors contribute to their overall functionality through the following key components and principles:
Nozzle or Converging Section:
The nozzle, also known as the converging section, is a critical component. It narrows the flow path of the compressed air, increasing its velocity according to the Venturi effect.
Throat or Diverging Section:
Following the nozzle, there is a diverging section called the throat. This portion allows the compressed air to expand, reducing its velocity and increasing its pressure.
Diffuser:
The diffuser follows the throat and is designed to slow down the air and convert its velocity energy into pressure energy. This pressure increase in the diffuser creates a low-pressure zone that induces suction.
Suction Connection:
The suction connection is the point where the low-pressure zone is created, and it is connected to the system or chamber from which air or gases are to be evacuated.
Compressed Air Inlet:
Compressed air is supplied through an inlet. The high-velocity air passing through the nozzle generates a low-pressure zone at the suction connection, facilitating the suction of gases or fluids.

What factors influence the efficiency of vacuum ejectors in different operating conditions?

The efficiency of vacuum ejectors, also known as ejector pumps or venturi pumps, can be influenced by various factors depending on the specific operating conditions. 
Pressure Ratio:
The pressure ratio, defined as the ratio of the absolute pressure at the inlet to the absolute pressure at the outlet, significantly affects the performance of vacuum ejectors. Higher pressure ratios generally result in better efficiency.
Inlet Pressure:
The inlet pressure of the motive fluid (typically compressed air or steam) affects the ejector's ability to generate suction. Higher inlet pressures often lead to better performance.
Motive Fluid Flow Rate:
The flow rate of the motive fluid has a direct impact on the performance of the vacuum ejector. Higher flow rates can enhance the suction capacity but may also increase energy consumption.
Nozzle Design:
The design and dimensions of the nozzle play a crucial role. The shape and size of the nozzle affect the velocity and direction of the motive fluid, influencing the suction efficiency.
Throat and Diffuser Design:
The design of the throat and diffuser sections is crucial for creating the necessary pressure drop and converting the kinetic energy of the motive fluid into suction. Well-designed throat and diffuser sections contribute to better efficiency.
Temperature:
Operating temperature can affect the performance of the ejector, especially if there are changes in the physical properties of the motive fluid. It's important to consider temperature variations during operation.
Fluid Properties:
The properties of the motive fluid (air, steam, etc.) can impact the ejector's efficiency. Compressibility and density changes in the motive fluid affect the suction capacity.