Why Allegion’s Von Duprin 98/ 99 exit device quietly dominates busy doors

Reviewed: ad hoc news B2B & Pro desk. Edited and checked on 2026-06-20, 10:15. Details in the imprint.

With the Von Duprin 98/99 exit device, Allegion plc is targeting the kind of heavy door that gets hit a hundred times an hour and still has to open smoothly. You see it on school corridors, stadium tunnels, hospital fire exits. One hard push, a clean click, the door releases.

What the device is built for

The Von Duprin 98/99 is a heavy-duty rim exit device designed for high-traffic commercial and institutional doors, with a familiar wide push bar and chunky end cap that feels solid rather than rattly in the hand. Official Von Duprin 98/99 product information

It is engineered as fire and life-safety hardware for doors that must release quickly in an emergency, yet also survive daily slams, cart impacts and the occasional frustrated shoulder check in real-world conditions.

Key mechanics and options

The core 98/99 mechanism uses a robust latch system with tamper-resistant fasteners and forged parts, aimed at long life with minimal maintenance on metal or wood doors in the 3.5 to 4.5 cm thickness range. Von Duprin 98/99 series specifications

Allegion offers a spread of trims, dogging options and finishes, so the same bar can appear in brushed stainless on a hospital corridor or in a darker architectural finish in an arena, while still sharing the same guts and feel.

How it feels in daily use

In use, the wide bar gives plenty of contact area, so even someone carrying boxes or pushing a trolley can lean in, hear the muted mechanical click and feel the latch pull free without a sharp jolt or metallic clang.

The action is firm rather than feather-light, which suits high-traffic doors where a bit of resistance reassures you the mechanism is substantial, not flimsy hardware that will bend after one hard shove.

Integration with access control

Beyond the basic mechanical bar, the 98/99 family is built to integrate with electric strikes, power supplies and card readers, letting facility managers tie life-safety egress to modern access control without changing the user’s simple push-to-exit motion. Allegion Von Duprin solutions overview

On doors equipped with electrified trim, the bar still functions for free egress while the outside lever or pull can be locked or unlocked electronically, keeping security and emergency escape in balance.

Where it shines and where it annoys

The convincing part is durability - this series has a reputation among installers as a “fit and forget” choice for punishing locations like schools and sports venues, where lesser panic bars quickly loosen, squeak or go out of adjustment.

Sobering for budget-sensitive projects, though, is that Von Duprin hardware typically sits at the premium end of the exit-device market, and total door costs rise further once you add trims, cylinders and any electrified options.

Market context and the stock

Allegion plc positions Von Duprin as one of its key professional lines in the Americas and international segments, alongside Schlage locks and LCN door closers, giving the group a broad footprint in mechanical and electronic door security.

Shares of Allegion plc (IE00BFRT3W74) trade on the New York Stock Exchange under the ticker ALLE in US dollars.

This article was AI-assisted and editorially reviewed. Product information without guarantee; prices and availability may change at short notice. No investment advice, no buy or sell recommendation. Stock-market transactions involve risks up to total loss.