How would you do Glycol filling or fill seal liquids in seal pots?

Interview Questions Instrumentation
1

The procedure for glycol filling is:

  1. Close the primary isolation valves.
  2. Open the vent on the seal pots.
  3. Drain the used glycol if present.
  4. Connect a hand pump on L.P. side while filling the H.P. side with glycol.
  5. Keep the equalizer valve open.
  6. Keep the L.P. side valve closed.
  7. Start pumping and fill glycol. .
  8. Same repeat for L.P. side by connecting pump to H.P. side, keeping equalizer open and H.P isolation valve closed.
  9. Close the seal pot vent valves.
  10. Close equalizer valve.
  11. Open both the primary isolation valves.