INSTALLATION OF PUMP PACKINGS

1. Remove all the old packing from stuffing box
2. Check the shaft and replace it if wear is excessive.
3. Choose the most suitable packing for each service, and also the correct cross-section of packing.
   Cut rings to a suitable length. The best way to cut packing rings is to cut them on a mandrel with the same diameter as the shaft in the stuffing box area.
   Die cut rings are a great advantage as they give you the exact size ring.
4. Insert each ring into the box, making certain it fits the packing space property.
5. After the last ring is installed, take up gland bolts finger tight or very slightly snuggled up.
   Do not jam the pacing into place by excessive glade loading.
6. Allow packing to leak freely when starting up a newly packed pump. Take up gradually on the gland as the packing seats. Until leakage is reduced to a tolerable level, preferable 8-10 drops per minute, per inch of shaft diameter.
   ··· Stopping leakage entirely at this point will cause the packing to burn, scratching the shaft.

VALVES

As with pump packing, the first step is to remove most of the old valve packing.

1. Carefully perform all operations listed under pump packing steps 1-5.
2. Turn valve stem back and forth to determinate ease of turning.
3. Inspect the valve after it has been on line. If leakage is observed, adjust the gland in accordance with safe maintenance procedures and manufacturer’s recommendations.