NORTON UNI 7500 AL UNITROL NHO SIZE 1-6 DOOR CLOSER 33" THRU 41" DOORS*

Norton UNI7500 Grade 1 Door Closer with Unitrol Arm, Parallel Arm Mount, Size 1 to 6, Plastic Cover

Unitrol® Parallel Arm

Unitrol arms combine the features of a double lever arm overhead door stop/holder with the backcheck feature of the door closer to reduce door stopping shock loads to a minimum. The Unitrol uses a compression spring buffer at the soffit plate/arm shoe that will absorb 30 lbs. of force, 5° prior to the door’s dead stop. Coupled with the door closer’s backcheck feature, this arm provides the most controlled stop available with a surface door closer. For parallel arm applications there are three different length arm assemblies. Each length is designed for a specific range of door widths to provide precise door control. This further lessens the dead stop impact on the door’s hinges/pivots.

• Includes Unitrol® Parallel Arm
• Built-in door stop
• 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