oill-sealed  Rotary  vane  vacuum   pumps   are  widely used  traditional vacuum  pumps  in  research and  production, can  be  used independently ,aswe ll as working as backing pumps for molecular pumps or diffusion pumps. TX direct driven  rotary vane pumpsare availableasone andtwo-stage versions, cover the range from desktop lab pumps to production line pumps, with low noise and  stable  working  temperature  for common voltages and frequencies,   long  lifespan,  and  outstanding   reliability  for  chemical applications. various application  areas may include vacuum  distillation, vacuum filtration, vacuum  inspection, vacuum freeze drying, vacuum coating, vacuum leakdetection,vacuum packaging, vacuum adsorption, etc.