Parker Lucifer - Coeva

8700/GBExplosive environments4.5. Types of protection used by Lucifer4.5.1 Flameproof enclosure‘‘d’’A type of protection where the partsthat can ignite an explosiveenvironment are placed in anenclosure which can withstand thepressure developed during aninternal explosion of an explosivemixture and which prevents thetransmission of the explosion to theexplosive environment surroundingthe enclosure.4.5.2 Increased safety‘‘e’’Type of protection applied toelectrical apparatus that does notproduce arcs or sparks in normalservice, in which additionalmeasures are applied so as to giveincreased security against thepossibility of excessivetemperatures and of theoccurrence of arcs and sparks.4.5.3 Pressurized apparatus4‘‘p’’A type of protection by which theentry of a surrounding environmentinto the enclosure of the electricalappartus, is prevented bymaintaining, inside the saidenclosure, a protective gas at ahigher pressure than that of thesurrounding environment. Theoverpressure is maintained eitherwith or without a continuous flow ofthe protective gas.381 Parker Lucifer SA381 Fluid Parker Control Lucifer Division SA EuropeCH-1227 Fluid Control Carouge-GenèveDivision EuropeCH-1227 Carouge-Genève