Sargent 281 series door closer is meets ADA requirements in all applications, except push side track application (except track). 1-1/2-inches diameter piston for superior door control. Standard pressure relief valves for both opening and closing cycles protect the door and frame from damage caused by abuse. Heavy duty mounting bracket for easy installation of full size iron closer. The advanced back check (ABC) option begins to slow the door down at approximately 15 degrees sooner than standard back check in the open cycle. The (ABC) option is used when the door needs to slow down earlier than the standard back check of 70 degrees. Heavy duty construction. Heat treated full rack and pinion for high strength and wear resistance. Heavy duty one piece cast iron body provides superior strength and wear resistance. 1/2-Inches arm engagement over a 7/16 square spindle ensures a wear-resistant tight joint. Fasteners: machine screws and self tapping screws provided for closer and arm. In addition, wood screws supplied when installed on wood doors without through bolts. Valves: separate brass low sensitivity control valves offer ability to separately regulate door speed, latching, back check and optional delayed action. All valves are captured to prevent accidental removal, adjustable with an 1/8-inches allen wrench. Adjustable back check protects the door and hardware from damage during the opening cycle. not to be used in lieu of a door stop. Adjustable delayed action (optional) permits easy access for physically impaired individuals. Certified ANSI/BHMA A156.4 grade 1. Conforms to UL10C and UBC for positive pressure fire test. UL listed and cUL listed to Canadian safety standards listed for use on fire doors. 25 year limited warranty.
User friendly versatile mounting applications permit standard, top jamb, parallel and track installations
Self sticking templates supplied for most applications
One door closer body for all applications
All weather fluid allows closer to operate effectively in extreme temperatures without readjustment
High impact non-corrosive plastic covers with two machine screws standard, a BS covers, metal covers and lead lined are optional