DRIWON DN-9500 Grade 1 β a heavy duty door closer for medical office buildings, outpatient clinics, imaging centers and urgent care: suite entries, exam rooms, imaging rooms and stairs, with ADA-adjustable closing and UL fire-rated performance on rated assemblies.
For medical office buildings (MOBs), physician practices, outpatient and specialty clinics, imaging centers, dental offices and urgent care centers.
Suites, exam & imaging rooms
Tested beyond 2 million cycles
With delayed action & positive latch
On rated door assemblies




Medical office buildings sit between offices and hospitals. Many are business occupancies, but they serve patients with walkers, wheelchairs and limited strength every day, and they often house imaging, procedure and lab spaces with special doors. Clinics where patients may be unable to evacuate on their own, such as some surgery or dialysis centers, can fall under stricter ambulatory health care requirements in NFPA 101. Confirm the occupancy for each tenant space with your AHJ.
Patients arrive with crutches, walkers and wheelchairs. Set opening force as low as the door allows and use delayed action on suite entries so the door does not start closing while a patient is still in the opening.
Under the 2010 ADA Standards for Accessible Design (section 404), interior hinged doors must open with no more than 5 lbf, and a closer must be adjusted so the door takes at least 5 seconds to swing from 90Β° to 12Β° from the latch. Fire doors are the exception on opening force: the authority having jurisdiction sets the minimum. Always check local code and your AHJ.
Clinic doors are touched and cleaned constantly. The DN-9500's non-porous powder-coated finish can be wiped down; verify compatibility with your disinfectants. Doors to procedure and clean rooms should close and latch reliably to support the air pressure relationships designed for them.
For full hospital guidance see our hospital door closer page and the healthcare door hardware guide.
| Model | DRIWON DN-9500 extra heavy duty commercial door closer |
|---|---|
| Certification | ANSI/BHMA A156.4 Grade 1; UL listed |
| Fire rating | 3-hour fire rated when installed on a rated door assembly |
| Power size | Adjustable 1β6 |
| Door weight | 44β440 lbs (20β200 kg) |
| Door width | 23"β59" (58β150 cm) |
| Body / arm | Extra heavy duty cast iron body, wrought steel arm, heat-treated piston |
| Control | Hydraulic, with delayed action and secure positive latch |
| Finish | Corrosion-resistant powder coat, silver or black |
Need the lighter-duty option for interior doors? See the DRIWON DN-8220 Grade 1 door closer. Full details on the DN-9500 product page.
Grade 1 closers on entrances, suite entries and corridors; UL listed closers on rated doors and stairs; ADA-compliant adjustment everywhere patients go; and quiet closing on exam rooms.
Not always by code, unless the door is in a rated wall. Many clinics add closers for privacy and noise control; set them for quiet, light closing.
An extra heavy duty closer rated for the door weight, such as the DN-9500 (up to 440 lbs), with hinges or pivots rated for the load.
Most medical offices are business occupancies, but clinics treating patients who cannot evacuate on their own may be ambulatory health care occupancies under NFPA 101. Check with your AHJ.
Reduce opening force as far as the door allows, add delayed action and consider a low-energy operator at the main accessible entrance.
Fitting out a medical office building or a group of clinics? Contact our team for volume pricing and specifications.