Product Description
LD9975HL-US3-4 Von Duprin 9975 Series Hospital Latch Mortise Lock Exit Device with Less Dogging in Bright Brass
The LD9975HL-US3-4 is a Von Duprin 9975 Series Mortise Lock exit device in Bright Brass (US3/605), sized for 4' doors. Exit Only — push bar operation from inside only, no outside trim. Free egress from inside. No cylinder required for this function.
Latch Detector — Latch Detector monitors door position — reports latch bolt status to the access control panel. 24VDC.
ANSI/BHMA A156.3 Grade 1 certified. Hex key dogging standard. Field reversible handing.
Pro-Tip from Our Locksmiths: The 9975 is the most complex exit device in the Von Duprin lineup. It has the most moving parts and requires the most precise door prep. When quoting 9975 jobs, add time for mortise pocket verification and potential adjustment. Get it right and it's bulletproof — rush it and you'll be back.
| Specifications | |
|---|---|
| Part Number | LD9975HL-US3-4 |
| Brand | Von Duprin (Allegion) |
| Series | Von Duprin 9975 |
| Function | Exit Only |
| Grade | ANSI/BHMA A156.3 Grade 1 |
| Mount Type | Mortise Lock (mortise body recessed into door edge) |
| Finish | Bright Brass (US3/605) |
| Door Size | 4 Foot |
| Cylinder | No cylinder required for this function |
| Fire Rating | Non Fire Rated |
| Electronics | Latch Detector |
- Von Duprin 9975 Series touch bar mechanism — Grade 1 architectural-grade panic hardware
- Mortise Lock (mortise body recessed into door edge)
- Bright Brass finish
- Latch Detector — Latch Detector monitors door position — reports latch bolt status to the access control panel
- Hex key dogging standard — hold latch retracted during business hours
Free Expert Support — As an authorized Von Duprin distributor, Lock Depot provides full manufacturer warranty coverage and same day shipping on most orders. Call (877) 365-5625 for personalized help.
Image shown is representative of the product line. Actual finish, trim, and configuration may vary by SKU.
