OS3 Safety in Use



Intent 1:

To limit the probability that:

  • inadequate size will lead to back pressure at relief valve outlets, which could lead to interference with proper pressure relief for protected devices,
  • inadequate rigidity, inappropriate slope, inappropriate termination or excessive space between the end of the pipe and a floor drain will lead to misdirection of vented water,
  • inadvertent blockage, connection or extension of pipes will lead to inoperability of relief systems, or
  • use of inappropriate materials will lead to an inability to withstand temperatures to which it may be exposed, which could lead to failure of pipes.

This is to limit the probability of exposure to hot water or steam, which could lead to harm to persons.

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