9300BC Series Surface Door Closer

This exact Norton 9303BC-9318A-689 configuration is identified as Spring Size 3, Regular Arm, Tri Packed, Adjustable Backcheck, 689 Aluminum Painted Finish. This product has been discontinued by the manufacturer..

Primary field use

Control closing and latching on a compatible commercial or institutional swinging door

Fit check

Confirm closer series, spring range, door size and weight, mounting position, handing, arm and shoe, reveal, cover, finish, fire label, opening force, backcheck, delayed action, hold-open limitations, accessibility, and required fasteners before quoting.

Technician note

Closer selection and commissioning affect accessibility, positive latching, and life safety. Diagnose hinges, door balance, seals, air pressure, latch resistance, and the approved opening schedule before changing spring or valve settings.