INDIANAPOLIS -- For exit device installations that require remote unlocking ability but are located in hazardous areas, Von Duprin has introduced a pneumatic exit device and air transfer. The new device provides the same capabilities as standard electrified devices, which cannot be used in hazardous locations.

The pneumatic devices are available on Von Duprin rim, mortise, concealed vertical rod and surface vertical rod pushpad devices. The air cylinder used in the devices has a special actuating linkage that allows a mechanical override option to pneumatic locking and locking. Dogging can be mechanical, by hex key, or by pneumatic solenoid, which holds the push pad down.

The pneumatic transfer, designated PNT-101, provides a means to transfer air from the frame to the door and allows a full 180 degrees of rotation. It is fully concealed when the door is closed. The pneumatic transfer allows sufficient air flow to operate a Von Duprin exit device in 1/2 to 1-1/2 seconds, using air pressure ranging from 40 to 100 pounds per square inch.