DESIGN HARDWARE 416 SERIESHEAVY DUTY DOOR CLOSERSSpecifications: ANSI: Meets ANSI A156.4 Grade 1 StandardsUL Listings: For A” Label 3 Hour Fire Doors, UL 1 0C Positive Pressure RatedADA Compliance: Meets ADA requirements ANSI A117. 1Closer Body: Heavy Duty Cast Iron Closer Body with Precision Rack & Pinion ConstructionPiston & Spindle: Heat Treated Steel Piston & Spindle with Needle Bearings for Smooth OperationSprings: Heat Treated Heavy Duty Tempered Spring for up to 2501b doorSpring Sizing: Adjustable size 1 to 6 – Factory set at size 3Speed Controls: Independent Latch & Sweep Speed ControlsBack Check: Adjustable Back Check Intensity Control ValveValves: Staked Valves to prevent backing valves out too farStandard Cover: Molded Plastic Cover included for finished lookOptional Cover: US26D Metal Cover available separatelyCTC Hole Pattern: 2 holes 1″ CTC, 3″ CTC horizontal x 2 1/4″ CTC verticalProjection: 2 1/4″ projection with cover installedMinimun Top Rail: Regular: 3 3/4″ – Top Jamb: 1 1/4″ – Parallel Arm: 5 3/8″Fasteners: Thru bolts & machine screws, wood screws & self tapping machine screws includedMounting Styles: Includes all screws and brackets for Regular, Top Jamb and Parallel Arm InstallationsAccessories: Hold Open Arms, Heavy Duty Arms, Drop Plates, Extended Arms & more…Warranty: Limited lifetime warrantyCertifications: Meets ANSI A156.4 – Grade 1 StandardsFor “A” Label 3 Hour Fire Doors, UL10C Positive Pressure RatedMeets ADA requirements ANSI A117.1RESOURCES & DOWNLOADSInstallation InstructionHeavy Dyty Door Closer Template