Posted on Wed, 01 Aug 2018 02:34:27 +0000
I.Working principle of the oil seal: 1. In the free state, the inner diameter of the oil seal lip is smaller than the shaft diameter and has a certain amount of interference. 2. After installation, the interference pressure of the oil seal cutting edge and the contraction force of the self-tighte...
Read MorePosted on Fri, 27 Jul 2018 03:12:46 +0000
There are a wide variety of vacuum device, whatever vacuum device, there is always a pumping system that removes the gas from the vessel to obtain the required vacuum conditions in this vacuum vessel. For example: a vacuum processing vessel, which is connected to a vacuum pump by pipes and valves...
Read MorePosted 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...
Read MorePosted 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...
Read MorePosted 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...
Read MorePosted 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 ...
Read MorePosted 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...
Read MorePosted 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...
Read MorePosted 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...
Read MorePosted 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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