If your Von Duprin EL (solenoid) device pulls and releases quickly instead of holding the latch retracted, please check all of the items below.In most cases, one or more of these solutions will r...
The holding force on an SE/ME Series door closer is approximately 35 lbs. and they can be manually pulled out of hold open with approximately 35 lbs of force.
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 4011 can only mount on the Pull Side of the door and the 4111 can only mount on the Push Side of the door.
Differences - The 4011 and the 4111 cylinders are different and the pinion shafts are...