HES 9600 and Von Duprin Exit Device Compatibility
The HES 9600 is compatible with all Von Duprin rim exit devices that use a 3/4-inch Pullman latchbolt, including the 99 Series, 98 Series, and 33A/35A Series. Von Duprin, an Allegion brand formerly under Ingersoll Rand, manufactures the most widely specified rim exit devices in commercial construction. The HES 9600 surface-mounts to the frame and receives the Von Duprin latchbolt without requiring frame modification or door prep changes.
Hanchett Entry Systems (HES), an ASSA ABLOY company, designed the 9600 electric strike specifically for rim panic hardware applications. The strike's 2,000 lbs static holding force and 120 ft-lbs dynamic impact resistance exceed the structural capacity of standard Von Duprin exit devices, ensuring the strike never becomes the weak point in the door assembly.
Von Duprin Model Compatibility Matrix
| Von Duprin Series | Latchbolt Type | Latchbolt Throw | HES 9600 Compatible |
|---|---|---|---|
| 99 Series (99L, 99NL, 99EO) | Pullman | 3/4" | ✓ Yes |
| 98 Series (98L, 98NL, 98EO) | Pullman | 3/4" | ✓ Yes |
| 33A Series | Pullman | 3/4" | ✓ Yes |
| 35A Series | Pullman | 3/4" | ✓ Yes |
| 22 Series (Rim) | Pullman | 3/4" | ✓ Yes |
| QEL Series (Quiet Electric Latch) | Pullman | 3/4" | ✓ Yes |
| 94/95 Series (Mortise) | Mortise | Varies | ✗ No* |
| 55 Series (Concealed Vertical Rod) | Top/Bottom Rods | N/A | ✗ No* |
*Mortise and concealed vertical rod devices require different electric strike types. See the HES 9600 compatible exit devices guide for alternative recommendations.
Von Duprin 99 Series Compatibility Details
The Von Duprin 99 Series represents the most commonly installed rim exit device in commercial buildings, schools, hospitals, and government facilities. The HES 9600 accepts all 99 Series variants including the 99L (lever trim), 99NL (night latch), and 99EO (exit only) configurations.
99 Series Latchbolt Specifications
Von Duprin 99 Series devices use a 3/4-inch throw Pullman latchbolt with the following specifications:
| Latchbolt Throw | 3/4 inch (19.1 mm) |
| Latchbolt Width | 1 inch (25.4 mm) |
| Latchbolt Material | Steel with stainless steel face |
| Strike Pocket Depth | HES 9600 provides 7/8 inch clearance |
99 Series Mounting Considerations
The Von Duprin 99 Series mounts at a standard height of 38-1/2 inches from the floor to the centerline of the latchbolt. The HES 9600 installation template (part number 9000-MTK) positions the strike keeper to align with this standard mounting height. Verify the actual latchbolt centerline height before drilling, as field conditions may vary from the nominal specification.
Von Duprin 98 Series Compatibility Details
The Von Duprin 98 Series functions as the wide stile version of the 99 Series, designed for doors with stile widths of 4 inches or greater. The 98 Series uses an identical Pullman latchbolt to the 99 Series, making all HES 9600 installation procedures interchangeable between the two series.
98 vs 99 Series Differences
| Specification | Von Duprin 99 Series | Von Duprin 98 Series |
|---|---|---|
| Door Stile Width | Narrow (under 4") | Wide (4" or greater) |
| Latchbolt Type | 3/4" Pullman | 3/4" Pullman |
| HES 9600 Compatible | ✓ Yes | ✓ Yes |
| Strike Installation | Identical | Identical |
Von Duprin 33A/35A Series Compatibility Details
The Von Duprin 33A and 35A Series provide fire-rated rim exit device options for doors requiring up to 3-hour fire ratings. Both series use the same 3/4-inch Pullman latchbolt as the 99 and 98 Series, ensuring full HES 9600 compatibility.
Fire Rating Considerations
The HES 9600 carries UL 10C listing for use on fire-rated door assemblies when installed in fail-secure configuration. The strike maintains the fire barrier integrity by ensuring the latchbolt remains engaged during power loss conditions. Fail-safe configuration is not permitted on fire-rated openings, as the unlocked state during power failure would compromise the fire barrier.
When installing the HES 9600 with Von Duprin 33A or 35A fire-rated exit devices:
- Configure for fail-secure operation only
- Verify the complete door assembly carries a valid fire rating
- Document the installation per NFPA 80 requirements
- The HES 9600 holds UL 10C listing for fire door compliance
Installation Considerations for Von Duprin Devices
Frame Preparation
The HES 9600 surface-mounts to the frame without cutting into the frame rabbet. This no-cut installation preserves the frame's structural integrity and simplifies retrofits on existing Von Duprin installations. The strike attaches using 4 mounting screws into threaded holes or blind nuts (Securitron BN-250) depending on frame gauge.
For detailed frame preparation instructions, see:
Voltage Configuration
The HES 9600 operates at 12V DC or 24V DC, field-selectable via jumper. Most Von Duprin electrified trim and access control integrations run on 24V DC power supplies. Match the HES 9600 voltage setting to the existing power supply voltage to simplify wiring. See the HES 9600 wiring diagram for connection details.
Latchbolt Monitoring
Von Duprin offers optional latchbolt monitoring (LX option) on many exit device models. The HES 9600 with LBM (Latchbolt Monitor) or LBSM (Latchbolt Strike Monitor) option provides redundant monitoring at the strike location. Both monitoring points can report to the access control system for comprehensive door status feedback. See the HES 9600 latchbolt monitor guide for wiring details.
Von Duprin QEL Compatibility
The Von Duprin QEL (Quiet Electric Latch) retraction option electrically retracts the latchbolt for hands-free egress in access control applications. The HES 9600 provides an alternative electrification method that keeps the latchbolt mechanical while electrically releasing the strike keeper.
QEL vs HES 9600: Choosing the Right Solution
| Feature | Von Duprin QEL | HES 9600 Strike |
|---|---|---|
| Electrification Location | Exit device (door) | Strike (frame) |
| Wiring Required | Power transfer hinge or cable | Frame wiring only |
| Retrofit Complexity | Higher (device replacement) | Lower (add strike) |
| Windstorm Certification | Varies by configuration | FL# 14307 certified |
| Holding Force | N/A (latchbolt retracts) | 2,000 lbs static |
The HES 9600 is often preferred over QEL in retrofit applications because it eliminates the need for power transfer hardware through the door hinge. In hurricane zone applications, the HES 9600's Florida Building Code approval FL# 14307 provides windstorm certification that QEL configurations may not achieve.
Troubleshooting Von Duprin Compatibility Issues
Latchbolt Does Not Engage Strike
Verify the following 4 alignment conditions:
- Strike keeper centerline aligns with latchbolt centerline (use template)
- Door-to-frame gap falls within 1/8" to 3/16" range
- Door hangs plumb without sagging or binding
- Exit device mounting screws are fully tightened
Latchbolt Binds in Strike
Binding typically results from misalignment between the latchbolt path and strike pocket. The HES 9600 includes an adjustable keeper that allows ±1/16" vertical adjustment to compensate for minor alignment variations. For larger misalignments, reposition the strike body using the slotted mounting holes.
For additional troubleshooting guidance, see the HES 9600 troubleshooting guide.
The HES 9600 is compatible with all Von Duprin rim exit devices using 3/4-inch Pullman latchbolts:
- 99 Series: 99L, 99NL, 99EO (all trim options)
- 98 Series: 98L, 98NL, 98EO (wide stile)
- 33A/35A Series: Fire-rated applications (fail-secure only)
- 22 Series: Rim devices
- QEL: Can use HES 9600 instead of or in addition to QEL