Fiber-reinforced plastic vacuum pumps can choose a wider range of inert organic solvents and acidic solutions as working fluids. The new working fluid has the advantages of low saturated vapor pressure, no reaction with the pumped gas, no dissolution, easy recovery and easy disposal in the later stage; at present, we have the actual Toluene, sulfuric acid, DMF, n-dodecane, isooctanoic acid and other media are used as new working fluids. This new combination will bring high-quality benefits of real gold and silver to your production: