Product Description
FV40 LD 628 99 48 Detex V40 Series Rim Exit Device — Less Dogging, Satin Aluminum Clear Anodized
Fire-rated openings don't allow dogging — the door must latch positively every single time. The Detex FV40 is purpose-built for fire-rated exits where code prohibits any hold-open mechanism.
This is a fire-rated device. UL listed for up to 3-hour fire-rated door assemblies. Required for fire-rated openings per NFPA 80.
Technical Specifications
| SKU | FV40 LD 628 99 48 |
| Series | Detex V40 Value Series |
| Mount Type | Rim |
| Stile | Wide Stile, Fire Rated |
| Grade | ANSI/BHMA Grade 1 |
| Function | Less Dogging |
| Finish | Satin Aluminum Clear Anodized (628) |
| Fire Rating | UL Listed, up to 3-Hour Fire Door |
| Strike | 99 Surface Strike |
| Device Length | 48" |
Compliance and Codes
- ANSI/BHMA A156.3 Grade 1 — highest commercial grade for panic hardware. Tested to 1,000,000 cycles.
- UL 305 — listed panic hardware for means of egress.
- UL 10C / UL 10B — fire-rated door assembly listed. Meets NFPA 80 requirements.
- ADA Compliant — operates with less than 15 pounds of force.
Function Details
- No dogging mechanism — door latches every time it closes. Required for fire-rated openings where code prohibits dogging.
What's in the Box
- Detex FV40 Rim Exit Device
- 99 Surface Strike
- Mounting hardware and template
- Installation instructions
Pro-Installer FAQ
Can this device be cut down for narrower doors?
Yes, the pushbar can be field-cut for doors narrower than standard width. Measure carefully and cut from the hinge end only. The lock stile end must remain factory length for proper strike engagement.
Can I add dogging to a fire-rated device?
No. Fire-rated openings require positive latching on every door closure per NFPA 80. This is why fire-rated models come with LD (Less Dogging) — dogging of any kind voids the fire rating.
Does Detex cover this under warranty?
Detex provides a limited lifetime warranty on mechanical components and 3 years on electronic components. This covers manufacturing defects — not field damage or improper installation.
Why Lock Depot? We specialize in commercial exit hardware. Factory-sealed, Grade 1 Detex devices ship same day on available stock. Need help specifying the right device for your opening? Call us.
Product images are representative and may not depict the exact SKU, finish, or configuration listed. Always verify specifications before ordering.
