Sargent CB-281 EN 281 Closer Body Only, Aluminum Painted

281 SeriesCast Iron Closer

Designed to meet the needs of facilities maintaining "cast iron" specifications, the 281 Series Powerglide® Cast Iron Door Closer features a heavy-duty one-piece cast iron body for superior strength and wear resistance. With a full complement of arm types and front-facing valves, the 281 series can be easily installed and maintained—for interior and exterior applications.

General Information: All Weather Fluid:

• All 281 Series closers are equipped with fluid that allows the units to operate effectively in extreme temperatures without readjustment.

Finishes:

• Powder coated and plated finishes are available

ANSI/BHMA Specifications:

• The 281 Series door closers are certified to the ANSI/BHMA A156.4 Grade 1 requirements
• UL 10C listed for positive pressure fire test

Closer Spring Adjustment:

• Effects the entire cycle of the door closer movement

• Used to size closer for application requirements

• Determines the amount of force with which the door closes and the amount of force required to open the door

• Adjustable to compensate for door size and draft conditions

Backcheck Valve:

• At approximately 70° of the open cycle, the backcheck valve begins to slow the door’s motion

• Prevents the door from slamming into the door’s stop

• Valve is used to control the intensity of the backcheck

• Note: A Positive stop is required, Backcheck cannot be used as a stop

Closing Speed Valve:

• Controls how fast the door closes to approximately 8" from the closed position

Latching Speed Valve:

• Controls the speed of the door during the final 8" of door swing

• The force the door closes with is controlled by the closer spring

• Note: This adjustment is critical for door latching

Features:

• Exceeds 25 million cycles

• Certified ANSI/BHMA A156.4 Grade 1

• UL 10C listed for positive pressure fire test

• UL / cUL Listed for use on fire rated 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

• Adjustable spring power allows 281 closers a size range of 1 through 6. They are adjusted to size 3 before leaving the factory

• One door closer body for all applications

• 281 are non-handed

• Meets ADA requirements in all applications, except Push Side Track application (except track)

• All weather fluid allows closer to operate effectively in extreme temperatures without readjustment

• 1-1/2" diameter piston for superior door control

• Standard pressure relief valves for both opening and closing cycles protect the door & frame from damage caused by abuse

• Heavy duty mounting bracket for easy installation of full size iron closer

• Retrofits existing SARGENT 250 and 1250 Series Closer installations

• The Advanced Backcheck (ABC) option begins to slow the door down at approximately 15° sooner than standard backcheck in the open cycle.
• The (ABC) option is used when the door needs to slow down earlier than the standard back check of 70°

Heavy Duty Construction:

• Heat treated full rack and pinion for high strength & wear resistance

• Heavy duty one piece cast iron body provides superior strength and wear resistance

• 1/2" 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

Full Complement of Arm Types:

• Standard and parallel arms

• Push and pull track arms

• Security track

• Security parallel arm

• Finished and interchangeable between SARGENT 281 and 1431, 250, 1250 and 351 Series

Valves:

• Separate brass low sensitivity control valves offer ability to separately regulate door speed, latching, backcheck and optional delayed action

• All valves are captured to prevent accidental removal, adjustable with an 1/8" allen wrench

• Adjustable backcheck 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