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...

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. ...

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 ...

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...

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...

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 ...

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 ...

CCQ pneumatic ultra-high vacuum gate valve takes the compressed air as power, change the direction of air passage by solenoid directional valve, well used in EVAPORATION SYSTEM, SPUTTERING SYSTEM,INERT GAS GLOVEBOX SYSTEM, VACUUM OVENS etc high vacuum system. CCQ Well suited as shut-off device fo...

Used batteries contain a variety of heavy metals, and direct disposal not only pollutes the environment, but also wastes resources. Dealing with it, eliminating its harm to the environment and recovering valuable substances have been the goals of many domestic and foreign researchers for many yea...

Milking cows by machine has become a standard procedure. The vacuum required to do the job can vary greatly depending on the number of cows to be milked. The entire milking procedure must be completed within two hours. In addition to transporting the milk, the vacuum used in these milking systems...