Ball valve opening against high differential pressure

Asked by esjensen 6 years, 2 months ago | 1 Answers

Is ball valve opening against high differential pressure ok?


1 Answer

1
odadmin 6 years, 2 months ago

Generally, it’s not good practice to open ball valves (especially soft seated designs) against high differential pressure.

For the FMC valves, as there is a risk of damaging valves seats, I recomend one of the recommendations below is followed:

  • adding a warning to the relevant operating manuals
  • adding a car seal to make sure the valve is not inadvertently operated
  • adding a warning sign on the valve body

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