8900 SeriesHeavy-Duty Surface Closers
Versatile, durable, and reliable, featuring modern styling for institutional or high-traffic commercial applications.
DORMA'S 8900 Series, Grade 1 hydraulic surface closers are housed in corrosion-resistant aluminum with a hardened pinion/piston providing toughness and high-strength. The arm hub is made from forged steel.
Standard on the 8900 Series closers are backcheck positioning with two adjustment valves, adjustable spring sizes from 1–6. Independently certified to 10 million, the 8900 Series closers are ideal for a variety of heavy-duty, as well as barrier-free, applications.
Technical Details:
- Available as 8916 with fully adjustable spring sizes 1–6. Size 1 (5 lb opening force) meets interior barrier-free AD requirements.
- 8916 may be used on doors up to 48" wide interior (42" wide exterior) and up to 180 lb.
- 8956 available with adjustable spring sizes of 5–6 +50% for use on exceptionally wide, tall, or heavy doors.
- Non-handed for regular, top jamb, and parallel arm applications.
- Backcheck (BC) valve (standard) provides adjustable-intensity hydraulic cushioning, preventing uncontrolled door opening to protect door and frame during abusive or abrupt opening.
- POS backcheck positioning valve (standard) maintains an effective backcheck range on parallel arm applications. Valve is accessible with the closer installed.
- Full adjustment using BC, POS, Sweep and Latch valves standard.
- Optional delayed action (DA) adjustable with separate independent valve to allow for unobstructed passage through opening.
- Full plastic cover standard. Full metal or full plastic slotted covers optional.
- All tamper-resistant (hex key) valve adjustments (including POS) accessible with closer installed.
- Standard components required for three most popular mounting configurations (Reg., TJ, PA).
- Standard fasteners include separate wood and metal screws and SN1 sex nuts for 1-3/4" thick doors.
- Full-sized templates enable accurate installation.
- A variety of specialty arm options, interchangeable across most DORMA surface closer models.
- Full complement of optional plates and brackets available for special applications.
- Screw options include self-drilling and tapping screws (DPK89) for steel door and frame applications or self-tapping screws (TPK89) for aluminum door and frame applications.
- Stainless steel (STA Series) model available.
- Available with holder/release with (EMR Series) or without (EMF Series) photoelectric detector to control spread of smoke and fire.
Certifications:
- ANSI/BHMA A156.4 Grade 1 certified.
- Meets UL10C for positive pressure.
- Meets ANSI/BHMA A117.1 and ADA for barrier-free accessibility.
Specification:
- The heavy-duty 8900 Series non-handed surface applied door closer with adjustable spring power and backcheck positioning adjustment.
- The 8900 has two independent, noncritical adjust-ment valves to control sweep and latch closing speeds.
- The back-check 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 adjust-able spring power from size 1–6 and meet barrier-free require-ments.
- The 8956 will be adjust-able size 5 to 6 +50% additional closing force over the size 6.
- 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 Specifications:
- The 8600 Series closer will have delayed action (DA).
- Delayed action range will be effective from maximum opening to approximately 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 self-tapping screws for aluminum doors and frames (TPK86).
- Closers to have TORX security for all exposed fasteners (TX89).
Finishes: Aluminum:
Bronze:
- 691 (Dull)
- 690 (Statuary)
- 695 (Dark Duranodic)
Gold:
Black:
- Optional DORMA Custom Color or Designer Color Finishes. Contact Customer Service.
Optional Plated/Architectural Finishes: Brass:
Bronze:
- 611 (Bright)
- 612 (Satin)
- 613 (Oxidized Satin Oil Rubbed)
Nickel:
Chrome:
Stainless:
Warranty:
- For details, refer to DORMA Limited Warranty on our website at go.dorma.com/terms.
Reduced Opening Force Installation Caution:
- Manual door closers, including those certified to meet ANSI/BHMA A156.4, when installed and adjusted to conform to ADA or other reduced opening force requirements, may not provide sufficient power to reliably close and latch a door.
- Refer to catalog for Low Energy Operators to meet reduced opening force requirements without affecting closing power.
Features: Spring size (8916 shipped as size 4):
- 8916 - 1–6
- 8956 - 5–6 + 50%
Non-handed:
- 8916 - standard
- 8956 - standard
Parallel arm bracket:
- 8916 - standard
- 8956 - standard
Full line of specialty function arms and plates:
- 8916 - standard
- 8956 - standard
Backcheck positioning adjustment:
- 8916 - standard
- 8956 - standard
Controlled closing with two adjustment valves:
- 8916 - 180°–15°15°–0°
- 8956 - 180°–15°15°–0°
Backcheck:
- 8916 - standard
- 8956 - standard
Hydraulic delayed action:
- 8916 - optional
- 8956 - optional
Hold open:
- 8916 - optional
- 8956 - optional
SN1 sex nuts for 1-3/4" thick doors included:
- 8916 - standard
- 8956 - standard
Self-drilling screws:
- 8916 - optional
- 8956 - optional
Self-tapping screws:
- 8916 - optional
- 8956 - optional
Tamper-resistant TORX screws:
- 8916 - optional
- 8956 - optional
Full cover (plastic):
- 8916 - standard
- 8956 - standard
Full cover (metal):
- 8916 - optional
- 8956 - optional