In this article, the factors that affect the max. permissible differential pressure of Roots vacuum pump are discussed. The methods of increasing it are discussed together.
文章分析了影响提高罗茨真空泵最大允许压差因素，提出了解决方法。
2
LC Gradient System VLIncludes gradient pump (max. pressure 400 bar) with integrated degasser, manual injector and variable wavelength detector with standard flow cell.