Roots vacuum unit

Selection of Roots vacuum unit:
In general, using a water ring pump as the front stage pump is more advantageous than other vacuum pumps for Roots vacuum units. This is mainly because it can extract a large amount of condensable steam, especially when the mechanical vacuum pump with gas ballast oil seal has insufficient ability to remove condensable steam, or the solvent used can deteriorate the pump oil and affect its performance, or when the vacuum system does not allow oil pollution. When choosing a vacuum unit, it is generally necessary for the vacuum degree of the vacuum unit to be half to one order of magnitude higher than the working vacuum degree in order to meet the usage requirements.