"Sliding valve vacuum pump suction principle and the pump similar, when the two structures are different .Slide valve vacuum pump is the use of slide valve body to change the volume of the West Chamber, it said Huafa pump." Huafa pump is an old Pump, but compared with the rotary vane pump, it has to allow high working pressure (104pa), pumping capacity, can work continuously in harsh environments, outstanding features such as durability, so the vacuum smelting, vacuum drying, vacuum impregnation, vacuum Distillation and other industries have been widely used. Currently widely used in the vacuum industry, oil-sealed vacuum pumps are mostly medium and small selection pump and medium and large Huafa pump. Rotary vane pump In dirty working conditions, the vane pump stuck in the rotor slot. Although Huafa Pump overcomes this shortcoming to a certain extent, the distance between the center of mass of the slide valve and the center of rotation is not constant. Although some balance measures have been taken in the structure, the complete balance can not be achieved and the vibration can not be completely eliminated. In particular, the greater the capacity of the pump, the vibration is greater. At the same time, the above two pumps, especially the spool pump, have a larger external dimension compared with their displacement.
Steel Tape
Henan liangjin tools co.,Ltd is located in Shangqiu City, Henan Province. The site area of the economic and Technological Development Zone covers an area of more than 30000 square meters, a construction area of more than 3000 square meters, a greening area accounting for more than 30% of the total area, and a design annual production capacity of 30 million rolls of paper, With 10 million screwdrivers, 6 million wrenches, 3 million art knives and 100000 sets of combined tools,specialize in the production of steel tape,tape screwdrivers,art knives,measuring tools,fine tape types of three meters,five meters,seven meters ,five meters,ten meters,as well as double-sided printing tape matte sanding,bright tape.
Steel Tape,Metal Tape Measure,Retractable Tape Measure,Clothing Measuring Tape
Henan Liangjin Tools Co.,Ltd , https://www.jtapemeasure.com