difference between standard and parellel arm

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EDA ARM - The EDA arm is a heavy duty parallel arm mount.  The degree of door opening is determined by the template used for mounting. EDA arm closers can only be mounted as a Push Side parallel ar...
The 4110-18, and 4110-18 CUSH  drop plates are identical. The difference between a 4110 EDA, and a 4110 CUSH is the templating on the door. That is why you order them differently, to...
The Rw/PA arm is simply a regular arm that is packed with a 62PA (parallel arm) shoe, which will allow a (Tri-Pack) closer to be mounted in a regular, top jamb, or parallel arm application.
The old D-Series Lever used a standard lever insert similar to the pre-2002 AL-Series standard lever insert.  The old D Lever insert was smaller than the AL and the two were not comp...
 Pneumatic Automatic Operators are used in areas where electrically operated devices are not convenient or permitted.  Consists of a modified, heavy-duty door closer for manual oper...
The 1260, 1460, and 4030 regular arm closers on the pullside will allow 180° door opening and can be held open at 180°, frame and trim permitting.
The hold open position on a "REG" or "EDA"  hold open arm is set with the door to a few degrees shy of the desired hold open point. To properly set, open the door 5° less then the desired hold open...
The EDA (Extra Duty Arm) is the standard arm for the 4110.
Maximum reveal for a 4041 regular arm is 2-9/16". The reveal for a 4041 long arm is from 2-9/16" to 4-13/16". The reveal for a 4041 extra long arm (ELR) is from 4-13/16" to 8". ST-2523 is a sp...
The (SF) "Swing Free" arm allows the door to be put into hold open position, but then repositioned (swing free) to any other degree of opening without taking the closer out of the hold open mode. ...