Assertion: safety valve's pressure | /r/HasProperty | applied
Facets:
value: from an upward direction
type: MANNER
Source sentences:
text: This can only be achieved if a suitable bursting disc is used to isolate a safety relief valve inlet from the process and for the duration of the in-situ testing a stable and monitored pressure is applied (minimum 70 per cent of set pressure would be recommendable).
text: A rod is connected to the center of the diaphragm so that it moves as the pressure is applied.
text: A subsurface safety valve is typically a uni-directional flapper valve, directed in such a way that the flappers open downwards when pressure is applied from an upward direction.