Robco Expert

  5  important things to do  when replacing compression packing on a pump: By Jocelyn Vachon – Fluid Sealing Specialist and Packing Guru If you’re not doing these 5 things, you are increasing the chances of pump failure. Visual inspection of the packing rings:  As you remove the worn-out packing rings, inspect for unusual wear: this will reveal if a faulty element is causing damage and early failure (impregnated abrasive particles on the packing, torn areas, excessive wear on particular surfaces, over-compression, etc. Inspect equipment  for   excessive wear on the sleeve/shaft, excessive shaft eccentricity run-out, plugged water-line or limited pressure, bearings, etc. Install packing that meets the performance requirements : operating temperature, shaft speed, chemistry and potential abrasion. Install one packing ring at a time:  make sure packing is the right size (it should fit reasonably tight) and do not insert a spiral of packing into the stuffing box Prepare for start-up:  Only