This guide covers everything needed to identify, order, and service Von Duprin 9847 exit device parts: the CVR configurations, the most common failure parts, the 9847 vs 9947 model number difference, fire vs panic device compatibility, the WDC wood door variant, and the electrified upgrade options available on this device family. Browse the Von Duprin exit devices catalog or the Von Duprin brand parts page at SecurityParts.com. Call 845-935-0301 or visit the SecurityParts.com contact page for pre-order parts identification support.

What Is the Von Duprin 9847 Exit Device and Where Is It Used

The Von Duprin 9847 exit device is a concealed vertical rod exit device. It belongs to the 98/99 series, which is the institutional flagship exit device line from Allegion. The CVR configuration uses vertical rods that run inside the door stile, engaging a top latch at the door head and a bottom latch at the door threshold when the push bar is activated. Because the rods are concealed inside the door, no hardware is visible on the door face except the push bar itself and the latch bolts at the top and bottom edges.

This configuration makes the 9847 the specification of choice in three situations: double doors without a center mullion that require three-point locking, architectural environments where surface rod hardware is visually unacceptable, and hotel or healthcare reception areas where door face appearance is a design requirement.

The 9847 CVR is available in panic and fire exit hardware versions. The panic version (model 9847) supports cylinder dogging and hex dogging options. The fire version (model 9847-F) must positively latch on every door cycle and does not support any dogging. ANSI/BHMA A156.3 Grade 1 certification applies to the full 98/99 series including the 9847 configuration.

Von Duprin 9847 vs 9947: Understanding the Model Number Difference

This is the most common source of confusion when ordering parts for a CVR exit device. The 9847 and 9947 are not two different products. They are two model number designations for the same concealed vertical rod configuration within the 98/99 series.

The 9847 designation was used on devices manufactured up through the mid-to-late 1990s. The 9947 is the current designation in active production. The physical device, its rod hardware, latch assemblies, and mechanism case are functionally identical between the two designations. Allegion consolidated the naming when the series was updated.

What the prefix tells you is a separate matter entirely. The 98-prefix (as in 9847) indicates a smooth mechanism case. The 99-prefix (as in 9947) indicates a grooved mechanism case. Both use the same internal parts. The grooved case on the 99 series provides better grip surface on high-contact institutional openings, which is why healthcare and educational specifications often call for the 99 specifically.

How to Read the Von Duprin 9847 Model Number on the Device

The model number on a Von Duprin 9847 CVR exit device appears on a label near the mechanism case housing on the hinge side of the device body. The label typically shows the full model designation including configuration suffix: 9847, 9847-F, 9947, or 9947-F. On some older devices the label has worn, in which case the device configuration can be determined by the hardware visible at the door head and threshold.

The suffix tells you which replacement parts apply to the latch assemblies. The -F suffix means fire exit hardware. Without -F means panic hardware. This distinction changes which latch mounting bracket quantity is required per latch and whether dogging components are applicable at all.

Von Duprin 9847 CVR Configurations

The 9847 concealed vertical rod exit device is available in several configurations that affect which rod components, latch kits, and mounting hardware apply to your installation.

Von Duprin 9847 Parts: Most Common Replacements

These are the components that fail most frequently on the Von Duprin 9847 CVR exit device based on field replacement patterns. Every part number below applies to both the 9847 and 9947 designations on devices manufactured after August 1997.

Latch Assemblies

The top and bottom latch kits are the most frequently replaced components on CVR exit devices. They wear at the pivot points and at the latch bolt face on high-cycle openings. Latch kits are sold separately for top and bottom, and the quantity of latch mounting brackets required differs between panic and fire devices.

Rod Assemblies

The adjustable vertical rods are the structural element that transmits push bar activation to the top and bottom latches. Rods bend or deform on high-abuse applications. The top rod is adjustable for door height; the bottom rod kit includes the adjustment hardware for threshold clearance.

Baseplate and Dogging Assembly

The baseplate assembly contains the dogging components that hold the push bar depressed during business hours. These parts wear most quickly on high-traffic doors with frequent dogging use.

Springs and Pins

How to Order Von Duprin 9847 Parts Without a Return

Three pieces of information are required before placing any 9847 CVR parts order. Getting any one of these wrong produces a part that does not fit the installed device.

1. Confirm panic or fire exit hardware The -F suffix in the model number confirms fire exit hardware. Without -F is panic. This determines latch mounting bracket quantities (one per latch for panic, two per latch for fire), whether dogging parts apply, and which center case cover kit is correct.
2. Confirm metal door or WDC WDC is wood door concealed. If the device is in a wood door, rod kits 050582 and 050583 apply. For metal door installations, 050574 and 050575 apply. These rod kits are not interchangeable.
3. Check the manufacture date for dogging parts The manufacture date appears near the model number on the device label. For devices manufactured before August 1997, order old-style dogging replacement kit 050153. For post-1997 devices, current-spec parts 090040, 090042, and 090043 apply.
4. Confirm whether the device has CD cylinder dogging Cylinder dogging adds a mortise cylinder to the device body. If the device has a cylinder slot at the mechanism case, it is a CD variant and the dogging plug (090046) and CD actuator arm (090045) are present in the assembly. Non-CD devices do not have these components.
5. Verify door width (3-foot or 4-foot device) The push bar retrofit kit (PBKIT) and some mechanism case components are device-size specific. A 3-foot device uses different PBKIT from a 4-foot device. Measure the door width before ordering any push bar or mechanism case components.

Electric Latch Retraction Options on the Von Duprin 9847

The Von Duprin 9847 CVR exit device supports electric latch retraction (EL) and hex dogging with electric latch retraction (HD-EL) as field-installable additions. These options convert a mechanical 9847 device to provide remote latch retraction capability, allowing an access control system to release the latch without anyone pressing the push bar.

EL is available on panic versions only. It is not available on fire-rated 9847-F devices. When an EL-equipped 9847 receives a credential signal, a solenoid retracts the CVR latches simultaneously, releasing the door. The HD-EL version adds hex dogging capability to the electrified device, allowing the push bar to be dogged in the depressed position independently of the EL function.

The EL9847 and HD-EL9847 designations identify electrically modified versions of the original 9847 model. The current EL kit adds a solenoid module to the existing mechanical device without requiring replacement of the device body. For access control integration on 9847 CVR devices, browse Von Duprin electric strike parts for the frame-side components that work alongside EL-equipped exit devices, and see the Von Duprin QEL vs MEL guide for a comparison of electric latch retraction options across the 98/99 series.

The RX (request to exit) switch option is also available on the 9847 series. RX places a switch in the push bar that signals the access control panel when egress is initiated, preventing false alarms on the secured entry side. The LX (latch bolt monitor) option signals the panel when the latch is not properly engaged, which is required on fire doors with latch compliance monitoring under the inspection program.

CVR vs Rim vs SVR: Where the 9847 Fits in the Von Duprin Lineup

Understanding which configuration applies to your opening prevents ordering the wrong device series entirely. The three main configurations in the 98/99 series serve different door types and architectural situations.

The rim device (98 and 99 series) mounts on the door face and latches at a single frame-side strike. It is the most common configuration for single doors and paired doors with a center mullion. For a complete guide to rim exit device components and configurations, see the rim exit devices guide at SecurityParts.com.

The surface vertical rod (SVR) device uses top and bottom engagement rods that run on the door face, providing three-point locking for double doors without a center mullion. Unlike the CVR, the SVR rods are visible on the door face. The SVR is specified where concealed rods are not required but three-point locking is still needed.

The concealed vertical rod (CVR) device, which is the 9847/9947, hides the rods inside the door stile. It is the architectural choice for double doors where surface rod hardware is not acceptable and three-point locking is required. For a broader overview of the full Von Duprin series and which configuration fits which application, see the Von Duprin exit device series comparison.

NFPA 80 and Code Compliance on the Von Duprin 9847 Fire Device

The Von Duprin 9847-F fire exit hardware version must meet specific requirements under NFPA 80 that go beyond what applies to the panic version of the same device. Facility managers and locksmiths maintaining fire-rated CVR devices need to understand these requirements before performing any maintenance or parts replacement.

Positive Latching on Every Cycle

A fire-rated 9847-F device must positively latch at both the top and bottom strike on every door close, without assistance. After replacing any latch component on a fire device, test the door by releasing it from fully open without pushing or assisting the close. Both latch bolts must engage the strike fully. A top or bottom latch that does not fully engage after parts replacement is a NFPA 80 deficiency.

No Dogging on Fire Devices

NFPA 80 Section 4.7.1 prohibits any device that holds a fire door open in a manner not connected to the fire alarm system. Mechanical dogging, including hex dogging and cylinder dogging, cannot be installed on a fire-rated 9847-F device. If a 9847-F device in your facility has a hex dogging mechanism installed, it is a fire code violation that will be cited on the next NFPA 80 annual fire door inspection. For general guidance on commercial door hardware and code compliance, see the panic hardware for commercial doors guide.

Parts Replacement and UL Listing Integrity

Only OEM replacement parts maintain the UL fire listing on the 9847-F device. Aftermarket latch kits, rod assemblies, or center case components installed on a fire-rated device can void the UL listing and create liability on the next fire door inspection. For the full case for OEM parts on fire-rated hardware, see the OEM vs aftermarket commercial door hardware parts guide.