The Main Characteristics of the Bozhong Roots pumps

• .The seal structure is improved.
  The bearing housing of the Roots pump is normally cooled and lubricated by the lubricant. If the emulsification of the oil occurs, the oil must be replaced with new oil immediately. Otherwise, the rust of the bearings will lead to liberation and larger noise of the pump. At the moment, if the wearable bearings are not replaced at once,it will lead to the abrasion of the gear and then the damage of the pump.
  According to the oil emulsification of the Roots pump occurs when it pumps the much vapor and solvent with the water ring vacuum pump, our company improved the seal structure of the pump chamber. We add flexible seals made from FPM or PTFE material between the chamber and bearing housing to avoid the oil emulsification sufficiently. The seal structure has been validated by many years practice.
• .The surface of the chamber of the pump is nickeled.
  The rust of the surface of the rotors and chamber occurring easily when the Roots pump takes out the much vapor and solvent or the pump stops for several days. The rust can lead to the abrasion of the pump or the pump will be jammed.
  To avoid the above phenomena, our company nickeled all the surface of the rotors and inner chamber of the pump. After nickeling the parts, the wearable and corrosive-proof capacity of the Roots pump is improved much.
• .The shape line of the rotors
  The mesh clearance between the rotors is the most important factor which influences the performance of the Roots pump. On the premise that the Roots pump runs steadily, the mesh clearance must be uniformity and least. Because a definite windage between the theoretic and the practice shape line of the Roots pump exist,our engineers revised it many times. Finally, the uniform shape line is achieved. By comparing with the abroad products, the performance of our Roots pump is also the same as them.
• .All the casts are founded by the metal model and the resin sands. The surface is very smooth and can be spray-painted directly. So the heat can be given out sufficiently.
• .The bearings are all adopted the import products with brand NSK, so the running stability and long life of the Roots pump can be ensured sufficiently.
• .All the adopted gears are in their high qualities with at least 6 grade according to the international standard. All the gears are quenched with high frequency and the teeth are machined by the gear milling so that the pump runs steadily and with lower noise.
• .The surface of the pump is all spray-painted by the epoxy paint with high quality, which is able to bear the acid, alkali, and high temperature. So the surface won't turn color for a long time.

Photos of the spare parts：nickeling rotors，end-shield founded by the resin sands，nickeling surface of the casing 1，nickeling surface of the casing 2，Roots pump after test