von duprin top fitting

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The part number for a Von Duprin 4954 mullion bottom fitting is #050390.
No, the 98/99 series mortise exit device should be ordered as NL less trim. IE, 9875NL-L/TRIM. NL-OP suffix is normally used with the 98/99 series rim, surface and concealed vertical rod devices wh...
Number of reasons could Von Duprin 55 or 88 series cross bar to sag. Attached are the reasons that could cause the cross bar to sag or not lift. The hinge case spring lifts both lever arms and t...
The 4600 Series operator has both a 12VDC and 24VDC output rated at 1A (combined load) to power strikes, maglocks, and other devices, but an EL device "always" has to have a separate PS914-2RS Seri...
Von Duprin 98/99 NL drive screw is located in back of the 98/99 center case assembly. NL drive screw should be left in with trim lock slide plate in up position in the 98/99 exit device with E99...