Sargent 28-2492 Fire Rated Bottom Latch | For 12-3727 Devices

The Sargent 28-2491 is a genuine OEM replacement Fire Rated Bottom Latch Assembly specifically engineered for Sargent 12-3727 Surface Vertical Rod (SVR) Exit Devices. Unlike standard latches, this assembly is built to the rigorous standards required for UL Fire Rated openings (12-prefix). It includes the complete internal latching mechanism and a protective EN (Aluminum) finish cover, ensuring the door remains securely deadlocked at the floor during a fire event.

Life-Safety Grade Features & Benefits

• Direct 12-3727 Series Compatibility: Precision-calibrated to interface perfectly with the fire-rated vertical rods of the Sargent 12-3700 series.
• Fire-Rated Integrity: Specifically designed to withstand high temperatures and maintain latch bolt engagement in accordance with fire-life safety codes.
• Architectural EN Cover Included: Features a factory-finished aluminum cover to protect the internal fire-rated springs and slides from dust and debris.
• Positive Deadlocking: The heavy-duty internal bolt is engineered to provide a secure "bottom-point" lock that prevents the door from warping or opening under pressure.
• OEM Precision Fit: Replacing damaged latches with the genuine 28-2492 restores the door's original fire listing without the need for unapproved field modifications.

Technical Specifications

• Model Number: 28-2491
• Part Type: Fire-Rated Bottom Latch Assembly with Cover
• Compatibility: Sargent 12-3727 Fire Rated SVR Devices
• Finish: EN (Aluminum)
• Application: Fire-Rated Doors Only (12-Prefix Hardware)

The Sargent 28-2491 is a mandatory replacement if your bottom latch has been damaged by floor scrubbers or heavy equipment. On a fire-rated door, the bottom latch is not optional; it is a critical part of the door's "label." If the internal slide is seized or the cover is missing, the door may fail a fire inspection. This assembly provides the smooth retraction needed to prevent "floor dragging" while maintaining the 90-minute or 3-hour fire rating of your opening.

Installation Note: For the bottom latch to function correctly under emergency conditions, the exit device must be perfectly anchored. We highly recommend securing the 12-3727 chassis using high-strength thru bolts. A stable, thru-bolted connection ensures the vertical rods stay in perfect vertical alignment, preventing the 28-2492 latch from binding or failing to engage the floor strike properly.