Is the motor add a inverter could be a VF motor?

Posted on Thu, 26 Jul 2018 07:15:07 +0000

Indeed, a motor add frequency converter, it is possible to achieve variable frequency operation, but it is not a real variable frequency motor. 1.The influence of inverter on the motor, is mainly on the efficiency and temperature rise of the motor: The inverter can generate different levels of ha...

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Travaini & EVP single and double stage liquid ring pump comparison table

Posted on Fri, 20 Jul 2018 02:12:18 +0000

Many customers want to replace the Travaini liquid ring pump with EVP pumps, so this article is mainly to list the replacement of the EVP pump and the travaini pump. (mainly compare with Travaini compact small capacity liquid ring vacuum pump) 1.The replacement diagram of the Travaini & EVP s...

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The principle of anti-return device for vacuum pump

Posted on Fri, 13 Jul 2018 02:05:10 +0000

Two-stage rotary vane vacuum pump is belonging to an oil-sealed vacuum pump. In order to prevent the vacuum pump oil from returning to the pumped container when the pump is stopped, the built-in stop pump anti-return device is very important. Preventing pump back oil is usually achieved by a comb...

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Air ejector system

Posted on Fri, 06 Jul 2018 07:01:46 +0000

An air ejector system is an upgrade from a vacuum pump system; allowing you to increase productivity, save energy and reduce operating costs Extends the Life of your existing vacuum pumps by reducing their usage Reduces the operating and maintenance cost associated with your existing vacuum pump ...

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EVP piston pump advantage

Posted on Thu, 05 Jul 2018 03:21:57 +0000

EVP piston vacuum pump have the single stage piston and dual stage piston pump, it’s namely H series and 2H series. H series and 2H series piston pump advantage as follow: 1, EVP piston pump almost have no any shakes because the low gravity center . 2, EVP H series ultimate pressure is more high...

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Analysis of Vacuum Distillation in Metallurgy

Posted on Fri, 29 Jun 2018 07:06:15 +0000

Vacuum distillation in metallurgy is mainly reflected in the vacuum smelting of non-ferrous metal materials, with a short process, less consumption, higher metal recovery, and many advantages, like non-waste (waste water, waste residue, waste gas), no pollution to the environment, little processi...

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Diffusion pump oil return process diagram

Posted on Fri, 22 Jun 2018 08:06:26 +0000

The oil vapor of diffusion pump is completely move radially down the pump chamber. Due to random scattering or directional radiation, some molecules of steam ejected from the nozzle also move toward the pump port. This process we called Backflow. Backflow is the main contamination of diffusion pu...

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water ring pump coupling installation and adjustment

Posted on Thu, 21 Jun 2018 03:03:34 +0000

Coupling alignment is also called finding a concentricity. After the pump and the motor are all installed, the last task is to find the pump and the motor to be concentric, that is, to align the pump and the axis of the prime mover on the same straight line so that it will not vibrate during oper...

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The use of gas ballast in rotary vane vacuum pumps

Posted on Wed, 20 Jun 2018 09:01:03 +0000

The ballast valve can accelerate the extraction of steam without polluting the oil. If the rotary vacuum pump only pumping permanent gas, the gas does not liquefy due to the increase in pressure, so there is no deterioration of the pump oil. However, if the pump is used to vacuum dry or pumping h...

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Feature of resistance vacuum gauge

Posted on Fri, 08 Jun 2018 06:26:12 +0000

Pirani vacuum gauge: The resistance vacuum gauge, also known as the Pirani gauge, responds to changes in pressure due to changes in the resistance of the filament. It is mainly composed of two parts: regulatory and measurement lines. Its measurement range is 104 to 10-1 Pa. The structure of the ...

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