safety valve

Spun glass mattresses are used for lagging the boiler, which has three Ross pop safety valves on the front ring.

Hernández additionally requested that he be given a two-level safety-valve reduction pursuant to U.S.S.G. § 5C1.2, which mitigates the harsh effect of mandatory minimum sentences on certain first-time offenders who played only supporting roles in drug-trafficking schemes and who provided testimony about their involvement in the criminal activity.