Optional Functions
Delayed Action Closing
An optional hydraulic adjustable feature adds a third speed (DA) range to the closing cycle. This feature becomes effective when the door is opened and released at any point beyond 70°. The amount of time delay depends upon the angle of door release and valve adjustment. The valve can be adjusted with 4mm hex key (provided) from no delay time up to maximum delay times of:
Pressure Relief Safety Valve
The (DA) hydraulic system contains a pressure relief valve. Any time the door is forced toward the closed direction while it is in the closing cycle, the valve will open and allow the door to close. This prevents damage to closer, arm, frame and door.
Suggested Applications
Delayed Action Closing allows slow-moving traffic to clear the opening before the door closer’s “normal” closing cycle begins. Healthcare, Hospitals and Nursing Homes facilities all use this feature. It gives sufficient time for persons in beds, wheelchairs or on crutches to pass through an opening without concern of the door closing on them. Delayed Action closers can also accommodate openings with movement of food service carts, hand trucks, and pallet jacks.
AL
28 Aluminum Painted
DU
20 Duro/Dark Bronze Painted
