WRJ Outer Lubrication Gear Pump is suitable for conveying non-lubricated, corrosive, hygienic and hygienic fluids that do not require high solids or do not contain the usual viscosity and high viscosities of solid particles, fibers, etc. Medium temperature 160 ℃, viscosity 5-1500cst. The main structural feature of WRJ external lubrication gear pump is that the working wheel and the power transmission wheel of the transmission medium are separated. The working wheel of the transmission medium does not carry the transmission power, and the power transmission gear does not come into contact with the medium to be conveyed. The parts in contact with the medium are all wear-resistant alloy steel. Anti-benzene mechanical seal, no leakage. WRJ external lubrication gear pump for coating, paint delivery.