Helium leak detector used in vacuum coating machine leak detection

Posted on Fri, 24 Jun 2022 06:40:49 +0000

When the vacuum coating machine is leaking, when the vacuum inside the coating machine drops to a certain level, such as below 0.5 mbar, spray helium gas on the suspected leak, or check the parts moved during standard maintenance. At this time, it is necessary to Someone observes the change of th...

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Why Plastic powder spray on Acoustic Enclosure of EVP Roots Blower?

Posted on Thu, 21 Jan 2021 05:14:55 +0000

As we all know, even matching with the standard Inlet and exhaust silencers, the noise of Roots blower is always a problem; What is known is that the main structure of acoustic enclosure is its enclosure plates. When the enclosure plates have enough sound insulation, which can block the noise of ...

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Vacuum Pump in Wood Drying

Posted on Tue, 15 Dec 2020 08:09:31 +0000

The amount of moisture in wood varies with tree species, tree age, and cutting season. In order to ensure the quality of wood and wood products and extend the service life, appropriate measures must be taken to reduce the moisture (moisture content) in the wood to a certain level. To reduce the m...

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Rotary vane vacuum pump in sealed container

Posted on Thu, 24 Sep 2020 06:18:49 +0000

The purpose is to provide a vacuum pumping device for vacuum vessels and to develop rotary vane vacuum pumps for application in sealed vessels. Why vacuum in a sealed container? Sealed containers are widely used in all aspects of life and are usually used in this type of high-sealed storage condi...

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How to prevent and eliminate cavitation of water ring vacuum pump

Posted on Tue, 28 Jul 2020 03:12:33 +0000

If the water ring vacuum pump works for a long time under cavitation condition, the noise and vibration of the pump will increase, and even damage the pump. Therefore, it is necessary to avoid the water ring vacuum pump working under cavitation condition. The following methods can be adopted: 1. ...

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Difference between H-150 and H-150G

Posted on Tue, 02 Jun 2020 03:21:51 +0000

The piston type oil seal mechanical pump (referred to as piston vacuum pump) is a variable volume gas transmission pump like the rotary vane pump, but the sliding valve vacuum pump is several times more durable than the 2X rotary vane vacuum pump. Its range and operating conditions are basically ...

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Side Channel Blowers Used for Hopper Loader Conveying System

Posted on Tue, 02 Jun 2020 03:15:43 +0000

For moderate distance conveying applications, nothing beats the simplicity of a side-channel vacuum blower. Side channel blowers work according to the impulse principle. This means that kinetic energy from a rotating impeller is transferred to the pumping medium and converted into pressure. The i...

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Roots Blower is used to oxygenate aquaculture

Posted on Fri, 29 May 2020 08:43:02 +0000

Roots blower is an indispensable fishing machine for aquaculture farmers. Using roots blower can improve water quality. Roots Blower not only supplies the oxygen needed by the fish, but also promotes the oxidation and decomposition of organic matter in the pool, promotes the convection of the poo...

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Rotary Vane Vacuum Pump Gas Ballast Valve advantages and Disadvantages

Posted on Fri, 22 May 2020 03:26:58 +0000

Rotary vane vacuum pump gas ballast principle: Open a small hole in the compression chamber of the oil-sealed mechanical vacuum pump and install a regulating valve. When the valve is opened and the amount of air intake is adjusted, when the rotor turns to a certain position, air penetrates into ...

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Piston Vacuum pump used in freezer dryer

Posted on Fri, 15 May 2020 03:02:37 +0000

As the leading vacuum solution supplier, EVP accumulated a lots experience with different application. For freezer dryer, we also have much successful experience, there are a lots suitable model, for example piston vacuum pump, double stage rotary vane vacuum pump, oil free vacuum pump and roots ...

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