ED4000 Catalog - Corbin Russwin

Helpful TermsED4000Abrasive CoatHard granular material applied to providea non-slip tactile surface for the visuallyimpaired.Active DoorIn a pair of doors, the door that is operablefrom the trim side.AstragalA vertical member applied to one or bothsides of a pair of doors at the meetingedges. The astragal closes the gap betweenthe two doors.CoordinatorA device used on a pair of doors to ensurethat the inactive door closes before theactive door.Deadlocking LatchA supplemental latch that automaticallydeadlocks the latchbolt when pressure isapplied to it.DoggingA mechanism that allows the latchbolt toremain retracted, permitting the door tooperate as if it were a push-pull; it cannotbe used on fire-rated exit devices.Double EgressA pair of doors of the same hand thatswing in opposite directions, commonlyfound in corridors.Dummy TrimTrim only. Usually used on the inactivedoor of a pair of doors for design balance.Exit Device (Panic Hardware)A door locking device with a pushbar orcrossbar which, when pressed, allowsinstant exit (egress).Fire Exit HardwareAn exit device listed by an independenttesting laboratory as meeting panic, fireand hose stream test standards; used onfire-rated openings.HandThe direction a door swings.Inactive DoorIn a pair of doors, the door that is inoperablefrom the trim side.LatchboltA lock component that has a beveled endand projects into a strike, holding the doorin a closed position.MullionA fixed or removable vertical member thatdivides a door opening and provides alatch surface for a pair of rim exit devices.Open Back StrikeFor mortise exit devices, used on the inactivedoor (usually the vertical rod door) of apair of doors that swing in the same direction.It permits the inactive door to open orclose independently.ReversiblePertains to a product that may be changedin the field to accommodate any hand ofthe door.Shim KitPieces of metal that permit mounting ofan exit device on a door that has a surfaceprojecting vision light (glass bead) molding.Split AstragalAn astragal that is split through the middleon a pair of doors, allowing both doors tooperate independently.ThresholdA strip fastened to the floor beneath adoor. It serves as a stop, prevents heat loss,and provides a strike location for latchingthe bottom rod of a vertical rod exitdevice.TrimA knob, lever, pull, or thumbpiece usedon the outside of an exit device door tocontrol access to an area.Universal Exit DeviceAn exit device that may be used on doorsof either hand without any modifications.Keying and Cylinder TermsBlockout CylinderA cylinder which allows all keys to be temporarilyblocked from operating. It is set bya blockout key.Concealed Key Control (CKC)The marking of standard key symbols ona cylinder in a location that is not visibleonce the cylinder is installed.Construction Master Keying (CMK)A cylinder preparation that allows temporaryaccess by construction personnel.Control keyA key used to remove and install interchangeablecores.CylinderA lock component containing the combinationthat determines which keys willoperate.Security CylinderA cylinder which provides extra resistanceto picking and unauthorized duplicationof keys.Interchangeable Core (IC)A cylinder which can be removed andinstalled quickly with a control key bynon-skilled personnel when rekeying isrequired.Key SymbolA letter/number combination in standardindustry format (e.g., 1AA, AA1, etc.)which indicates exactly how a key or cylinderfits into a keying system.KeywayThe opening in a cylinder plug throughwhich the key enters.Master KeyingPreparation of a cylinder to operate withkeys of different levels of access.Visual Key Control (VKC)The marking of standard key symbols onkeys and on the visible portion of the frontof a cylinder.45060-7/13ED4000.37