Norton 7500DA Door Closer with Delayed Action

Norton 7500 Grade 1 Tri Mount Door Closer, Push or Pull Side, Size 1 to 6, Delayed Action, Plastic Cover

Adjustable Delayed Action Closing

An optional hydraulic feature that adds a third speed 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 combination of the angle of door release and valve adjustment.

Pressure Relief Safety Valve

The delayed action 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 permit the door to close. This prevents damage to door, frame, and closer

Suggested Applications

Delayed Action closing allows slow-moving traffic to clear the opening before the door closer’s normal closing cycle begins. This feature can be helpful in health care facilities such as hospitals and nursing homes. It provides sufficient time for persons on crutches or in wheelchairs to pass through a door without concern of it closing. At the same time, it can accommodate the facility’s staff with movement of food service carts, beds, and other wheeled traffic. Use of delayed action closers on many doors throughout industrial and commercial buildings can also assist the flow of traffic. Locations, where additional time to clear the opening is advantageous, are doors between office and factory/warehouse facilities, doors to workshops or laboratories, to kitchen and food processing areas, etc

• Tri-Style® packaging for regular, top jamb or parallel arm mounting
• Standard, separate and independent, latch, sweep and backcheck intensity valves
• Exceeds 25 million cycles
• Non-handed
• Rack-and-pinion design
• Cast aluminum body
• Stacked valves

Certifications

• ANSI/BHMA A156.4, Grade 1 certified
• UL / cUL listed for use on fire-rated doors
• UL10C listed for positive pressure fire test
• Designed to comply with requirements for the Americans with Disabilities Act (ADA) and ANSI standard A117.1
• This product is manufactured in an ISO 9001 facility