BASIC HINGE SELECTION GUIDE


When ordering, height of hinge is always first dimension
(height x width) excluding tip.

Application determines the type and size of hinge selected:
Full Mortise
 Both leaves are mortised
Half Mortise
 One leaf is mortised to the door, and the other is surface applied to the frame
Half Surface
 One leaf is surface applied to the door and the other is mortised to the frame
Full Surface
 Both leaves are applied to the surface

HINGE SIZE
DOOR THICKNESS DOOR WIDTH HINGE HEIGHT
1-3/4" up to 36" 4-1/2"
1-3/4" 36" to 48" 5"
1-3/4" over 48" 6"
2" to 2-1/2" up to 42" 5"
2" to 2-1/2" over 42" 6"
NUMBER OF HINGES
Use 3 hinges on doors up to and including 7-1/2-ft. and one additional hinge for each additional 2-1/2-ft.
HINGE TIPS
The button tip, as shown on the hinge at the top of this page, is the most common hinge top or tip and will be supplied standard unless an optional tip is specified.
 Hospital Tip Barrel ends are sloped, making cleaning easier, and making it difficult to attach rope, wearing apparel, etc. to hinge.

ELECTRIC THROUGH HINGE (ETW)
Used to conduct low voltage electric power to electric locks, panic bolts or hold open devices, or to transmit signals from code readers on doors to remote computers for access control. No electrical parts are exposed when hinge is installed.

NON-REMOVABLE PIN (NRP)
NRP is an industry standard, which stands for, “Non-Removable Pin”. The NRP hinge has a small set screw in the body of the barrel which is tightened down against the pin. The pin has a groove in the position where the set screw makes contact, allowing the set screw to seat. The set screw is positioned so it cannot be reached unless the door is opened. If pin removal is necessary, the set screw is merely removed and the pin tapped from the bottom in the usual manner.This modification is intended as a deterrent only. It is not to be considered suitable for high-security applications or abusive environments.
CONTINUOUS GEAR ALUMINUM HINGES AND PIN & BARREL CONTINUOUS STEEL HINGES
The most common cause of entrance failure is a poorly engineered hinge system. The service life of any opening is totally dependent on the ability of the hinges to maintain exact door alignment and smooth operation over millions of cycles. Hinge failure can quickly lead to the total breakdown of the entire entrance.

In demanding applications like schools and commercial buildings, destructive forces hammer at the hinge jamb, destroying the edge of the door and frame.

Continuous gear and continuous steel hinges protect against early entrance failure by uniformly distributing opening and closing forces along the full length of the door and frame. With the door tightly gripped by the frame, each reinforces the other, eliminating torn reinforcements and twisted metal.

Continuous hinges also deter warp, sag and deflection. They provide an attractive, streamlined appearance while keeping doors and frames in alignment. Cushioned bearing blocks carry the heaviest doors effortlessly.

 

FACTORS AFFECTING HINGE SELECTION
PROBLEM
Wind can cause doors to open beyond their stop, causing hinges to wear and doors to sag. This results in doors that won't close properly. 		SOLUTION
Often, especially on hollow metal doors and frames, a reinforcing pivot hinge can be easily installed at the top of the door by regular maintenance personnel without any special preparation. Now, when the door is jarred past the stop, the force is transferred from the door through the pivot to the frame. Locks continue to work, doors operate safely and costly maintenance is prevented.