The safety valve is a provision in the Sentencing Reform Act and the United States Federal Sentencing Guidelines that authorizes a sentence below the statutory minimum for certain nonviolent, non-managerial drug offenders with little or no criminal history.
A means of giving harmless vent to feelings of tension or stress
A valve opening automatically to relieve excessive pressure, esp. in a boiler
a valve in a container in which pressure can build up (as a steam boiler); it opens automatically when the pressure reaches a dangerous level
A safety valve is a valve mechanism for the automatic release of a substance from a boiler, pressure vessel, or other system when the pressure or temperature exceeds preset limits. It is part of a bigger set named pressure safety valves (PSV) or pressure relief valves (PRV).
Containing or holding much or many; having a large number of
beat for the purpose of cleaning and thickening; "full the cloth"
full moon: the time when the Moon is fully illuminated; "the moon is at the full"
Containing or holding as much or as many as possible; having no empty space
Having eaten or drunk to one's limits or satisfaction
containing as much or as many as is possible or normal; "a full glass"; "a sky full of stars"; "a full life"; "the auditorium was full to overflowing"
Raise to a higher position or level
raise: raise from a lower to a higher position; "Raise your hands"; "Lift a load"
the act of giving temporary assistance
Increase the volume or pitch of (one's voice)
aerodynamic lift: the component of the aerodynamic forces acting on an airfoil that opposes gravity
Move (one's eyes or face) to face upward and look at someone or something
Blowing off
The next day the weather was much better. The Earl is at full boiler pressure of 160 pounds per square inch ( approx 11 Bar) and the safety valves are lifting. The boiler passed it's inspection by the insurance company engineer.
17/4/2009
Boiler inspection 9 March - pressure accumulation test
Lew Lewis from SFP Inspection checking that the safety valve is lifting ok at full pressure