How to judge the quality of dry screw vacuum pump

[Asia Pump Network News] Dry-type screw pump is a new type of vacuum pump, which was developed mainly to replace the traditional water ring vacuum pump, oil ring vacuum pump and other pump type. Because of its unique design principles, can be oil-free water, corrosion-resistant coating can be done, excellent seal design, in addition to a little more expensive, in any case will far exceed the performance of the traditional vacuum pump. How to determine the quality of dry screw vacuum pump How to determine the dry screw vacuum pump is qualified, you can judge from the following aspects: 1, ultimate vacuum: of course, the lower limit of vacuum as possible, the current domestic general in about 5Pa, imported at 1Pa about. 2, vibration and noise: vibration must be small, the noise must be small 80 decibel as well. 3, if it is used in a corrosive environment, it is best to the factory to a little sample of the same coating, get the factory dissolved in the media to do the next test, each manufacturer's coating or coating ratio is not the same , Of course, its performance will have greater differences. 4, airtightness: This is also very important, but only from manufacturers to understand the description, the most direct access to the system through the medium determination is not a leak. Basically the above points to determine the first and second point of the vacuum pump machining level and design technology level, this will also affect the true life of the pump, the third and fourth point will affect their life expectancy , But also need experimental proof. In general, the current screw pump because of the higher cost, it is recommended or imported, Europe and the United States, Japan and South Korea is relatively expensive, in fact, the Department of Taiwan is also a good choice. (Editor: Yunhai QQ:) Recommended reading: Acting procurement

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