?unique=6b07453)
?unique=6b07453)
Sargent 28-7G15-3 LL Exit Latch or Communicating Latch
Function Information:
The Sargent 28-7G15-3 LL is a professional-grade Grade 2 Cylindrical Exit or Communicating Latchset engineered for specialized commercial applications where one-way access or twin-door security is required. Part of the industry-leading Sargent 7-Line Series, this latchset is designed to surpass ANSI/BHMA A156.2 standards, providing a heavy-duty feel in a standard-duty footprint. The 28-prefix ensures this unit is supplied with the 808 Curved Lip ANSI Strike, while the LL design features a sleek, linear lever and rose combination crafted from solid one-piece cast construction.
Specialized Exit & Communicating Function
The 15-3 Function is a unique configuration designed for specific life-safety and security scenarios, such as hotel communicating doors or emergency exit-only applications.
- Single Lever Operation: This unit features a blank rose on the exterior and an active lever on the interior. This design ensures that the door can always be opened from the inside for egress, but provides no hardware for entry from the outside.
- Twin Door Compatibility: Often used in "communicating" suites where two doors are installed back-to-back in a single frame. The 15-3 function requires a minimum clearance of 2" between doors to operate correctly.
- Deadlocking Protection: Features a deadlocking latchbolt with a 1/2" throw. The auxiliary deadlatch prevents "shimming" or unauthorized manipulation from the exterior, maintaining a secure barrier even without a keyed cylinder.
- ADA Compliant LL Lever: The ergonomic, linear LL lever is designed for easy operation without tight grasping or twisting, meeting all Americans with Disabilities Act standards.
Institutional Strength and Rapid Installation
The Sargent 7-Line is recognized as the best overall lock in the Grade 2 class, designed to handle the daily rigors of offices, medical clinics, and public buildings.
- Exceeds Grade 2 Standards: This series significantly exceeds ANSI/BHMA A156.2 Grade 2 cycle requirements, ensuring long-term durability in high-traffic corridors.
- One-Minute Installation: Engineered for maximum efficiency, the 7G15-3 can be installed in one minute or less, drastically reducing labor costs for facility-wide hardware updates.
- Structural Stability: Internal through-bolts supply unmatched strength and stability without requiring additional door preparation, fitting standard modified 161 door preps.
- Solid Cast Construction: Unlike inferior stamped hardware, the LL levers are solid, one-piece castings, providing a substantial feel and superior resistance to wear.
Technical Specifications
| Feature | Details |
| Series | Sargent 7-Line (Cylindrical) |
| Function | 15-3 Exit or Twin Communicating |
| Certification | Exceeds ANSI/BHMA A156.2 Grade 2 |
| Lever Style | LL Design (Solid Cast Linear Lever) |
| Exterior Trim | Blank Rose (No Lever/No Access) |
| Interior Trim | Active Lever (Always Operative) |
| Strike Plate | 808 Curved Lip ANSI Strike (28-prefix / Standard) |
| Backset | 2-3/4" (Standard Commercial) |
| Latchbolt | 1/2" Throw Brass, Deadlocking |
| Door Thickness | 1-3/4" Standard (Adjustable for 1-3/8") |
| Warranty | 5-Year Limited Warranty |
Why Choose the Sargent 28-7G15-3 LL?
For contractors and facility managers at hotels, government buildings, and hospitals, the Sargent 28-7G15-3 LL represents a high-value investment for specialized openings. It provides the architectural continuity of a professional linear lever with the mechanical strength required for 24/7 public and private use. By choosing the 7-Line, you gain a fire-rated solution that installs quickly and maintains a rigid, secure profile for years to come.
Ideal Applications:
- Hotel Communicating Doors: Used back-to-back to allow guests control over shared suite access.
- Emergency Exit-Only Doors: Ensuring immediate egress from the interior with a clean, hardware-free exterior.
- Secure IT or Storage Rooms: Preventing any exterior access points while maintaining life-safety exit requirements.
- Medical Facilities: Providing a durable, easy-to-clean lever for one-way traffic control in clinical settings.
| Finish with BHMA code | 626 - US26D Satin Chrome or 613 - US10B Oil Rubbed Bronze or 613E - US10BE Oil Rubbed Bronze Equal or 605 - US3 Polish Brass or 606 - US4 Satin Brass or 612 - US10 Satin Bronze or 625 - US26 Polish Chrome |
| Backset | 2-3/4" Backset or 2-3/8" Backset |
| Brand | Sargent |
| ANSI Cyl Lock Function | F89 - Exit Latchset |
| Trim Design | LL |
| Series | Sargent - 7 Line |
Recently Viewed Items