Crane Hinges

[VaultDoors]

Do large vault doors with pressure bars in front or in back of the crane hinge have a wide range of motion like the this Fort Knox vault door?



The Fort Knox door has no pressure bar so nothing prevents the door from pivoting almost 360 degrees but the only doors I have seen pivot greatly on crane hinges are emergency doors. Pressure bars on large vault doors detach on the non-hinge side but appear to be fastened on the hinge side which would restrict the door from pivoting to only a few degrees - which may be all that is needed for the door to be pushed in straight. It seems that doors with pressure bars behind the crane hinge would have a wider range of motion than doors with pressure bars in front of the crane hinge. Does anyone know the typical range that large vault doors with pressure bars are able to pivot on the crane hinge when fully opened?