OVERVIEW
The 8900 door closer series designed to provide a highly flexible door control system suitable for institutional or high-traffic commercial applications. Its hydraulic control system features a full range spring power adjustment and backcheck, along with a narrow projection full cover and flatform style arm.
Door closer ANSI/BHMA Grade 1 certified.
- Adjustable spring sizes and power
- Meets barrier-free requirements
- Adjustable backcheck
- Backed by 25 year warranty
SPECIFICATION
The heavy-duty 8900 Series is non-handed surface applied door closer with adjustable spring power and backcheck positioning adjustment. The 8900 has two independent, noncritical adjustment valves to control sweep and latch closing speeds. The backcheck positioning valve maintains an effective backcheck range on parallel arm applications. The 8916 will be available with field adjustable spring power from size 1–6 for barrier-free requirements. All closers to have field adjustable spring power from size 1–6 and meet barrier-free requirements. The 8956 will be adjustable size 5 to 6 +50% additional closing force over the size 6. All 8900 fully adjustable spring force door closers to include an integral design to positively stop
adjustment of the spring at the minimum and maximum spring force settings.
Optional Specification:
The 8900 Series closer will have delayed action (DA). Delayed action range will be
effective from maximum opening to Approx.ly 65°. All 8900 closers to have full metal
covers. All 8900 closers to have sex nuts with machine screws for 1-3/8" door (SN2). Closers to have self-drilling screws for steel doors and frames (DPK86). Closers to have selftapping screws for aluminum doors and frames (TPK86). Closers to have TORX security for all exposed fasteners (TX89).
FEATURES
Controlled opening with backcheck feature
The 8900 Series hydraulic backcheck feature protects doors and their adjacent structures. It’s valve adjustment regulates backcheck intensity. In addition, a backcheck positioning adjustment for parallel arm applications provides a consistent range similar to regular and top jamb applications.
Long term performance
The 8900 Series heavy-duty, 10 million cycle closers represent the latest in door control technology, combining over a quarter century of proven performance with its hydraulic control system and modern architecturally styled aesthetics. It results in the perfect combination of durability, reliability, and appearance.
Barrier-free
This door closer series, with it’s adjustable spring size 1-6, also meets barrier-free accessibility requirements.
CERTIFICATION
- ANSI/BHMA A156.4 Grade 1 certified.
- U.L. & C.U.L. listed.
- Meets UL10C and UBC 7.2 (1997).
- Meets ANSI/BHMA A117.1 and ADA for barrier free accessibility.
- CSFM approved.
DOWNLOADS
DORMA 8900 Installation Instructions
