8907 Series Heavy-Duty Surface Closer

This exact Dorma 8907-AFPKT90-FC-SN1-689 configuration is identified as Fixed Spring Size 7, AFPKT90-Double Lever Flat Form Arm 90 degree Pocket Door (8907 only), Full Plastic Cover, Sex Nuts 1-3/4", 689 Aluminum.

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.