no return frame

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F-Series frames are available without returns: Fire Rated frames must have welded corners. Frames must include weled in wood or steel stud anchors. Installation requirements: ...
Wallboard must penetrate a minimum of ½” into the hollow metal frame, based on NFPA Pamphlet 80, (page 80-2, figure A.4.6.3.1) .
The Locknetics 9100 series electric strikes are replaced with Von Duprin 6211 and 6210 electric strikes.   The 6211 is used if the frame is being replaced. The 6210 is for ...
CAD drawings are available for doors and frames in 3 drawing formats: Autocad (.dwg) - Release 12 Encapsulated PostScript (.eps) Data Exchange (.dxf) Drawings are available on the...
Some architectural specifications require steel frames to be back-coated with a bituminous coating for corrosion protection or sound control. It is commonly specified to be used in condit...
For Potted Modules (black color) shipped before August of 2012, you can test by applying power to the potted circuit breaker to and if good the following voltages will be seen (be careful...