EN1431-UO CLOSER (REPL.EN1231)
Features
Certified ANSI/BHMA A156.4 Grade 1
Conforms to UL10C and UBC for positive pressure fire test
10 year warranty
User friendly versatile mounting applications permit standard, top jamb and parallel installations
Self sticking templates supplied for most applications
Adjustable spring power allows 1431 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. All 1431are non-handed.
Meets ADA requirements in all applications
High impact non-corrosive plastic covers with two machine screws standardl
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
Retrofits existing SARGENT 1230/1231 Series Closer installations

Heavy Duty Construction
Heat treated full rack and pinion for high strength & wear resistance
Heavy duty one piece high silicon content aluminum alloy body provides corrosion resistance, 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 with through bolts
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