Sargent 28-11G37 LL Classroom Lever Lockset, Extra Heavy Duty

Function Information:

The Sargent 28-11G37 LL is an elite-tier Grade 1 Extra Heavy Duty Cylindrical Lockset specifically engineered for high-traffic, high-abuse environments like K-12 schools, university lecture halls, and government facilities. As a flagship model in the Sargent 11-Line Series, it is designed to provide maximum security while prioritizing student and staff safety. The 28-prefix ensures this lock is supplied with a Sargent 6-pin LA Keyway cylinder, offering professional-grade security and seamless integration into existing facility master key systems.

Engineering Beyond the Grade 1 Standard

While most commercial locks aim to meet the minimum ANSI/BHMA A156.2 Grade 1 requirements, the Sargent 11-Line completely redefines the category. Independent laboratory testing has confirmed that this hardware is in a class of its own:

• 12 Times the Industry Standard: Tested to exceed 10,000,000 (Ten Million) cycles. This is 12 times the 800,000-cycle requirement for Grade 1 certification, ensuring decades of maintenance-free service.
  
• Extreme Torque Resistance: The 11G37 is built to withstand over 3,000 in/lbs of torque on the lever. This is 3 times the force required for Grade 1 status, providing unmatched protection against "broomstick" attacks and extreme vandalism.
• Zero Lever Sag: Utilizing high-carbon steel spring cartridges, the LL lever remains perfectly horizontal for the life of the product, eliminating the unsightly "droop" found in lesser latchsets.
• 10-Year Limited Warranty: Sargent provides a decade of protection with no service required to maintain the warranty, offering the lowest total cost of ownership in the industry.
  

Essential Classroom Function (ANSI F84)

The 37 Classroom Function is the gold standard for educational security, ensuring that the locking status of the door is always controlled by authorized personnel.

• Keyed Exterior Control: The outside lever is locked or unlocked by a physical key from the exterior. Once locked, the outside lever remains rigid to prevent unauthorized entry from the corridor.
  
• Safe Interior Egress: The inside lever is always free for immediate exit. Occupants can never be locked inside the room, ensuring 100% compliance with NFPA 101 Life Safety and ADA accessibility codes.
  
• Tamper-Resistant Logic: Because there is no thumbturn or button on the interior, the locking status cannot be altered by students or unauthorized persons, maintaining the security integrity of the classroom.
• Deadlocking Latchbolt: Features a 1/2" throw stainless steel latch with an auxiliary deadlatch to prevent "shimming" or unauthorized manipulation when the door is closed.

Technical Specifications & Compatibility

Why Choose the Sargent 28-11G37 LL?

For facility managers at schools and hospitals, hardware failure is more than an inconvenience—it’s a security liability. The Sargent 11G37 is designed to be the final solution for high-abuse openings. By installing a lock proven to survive 10 million cycles, you eliminate the labor costs and frustration associated with frequent hardware replacements in high-traffic corridors.

Ideal Applications:

• K-12 Classrooms: Reliable security that prevents unauthorized room tampering.
• University Lecture Halls: Durable enough for constant, high-frequency student traffic.
• Hospital Administrative Offices: Grade 1 protection for sensitive medical environments.
• Government Facilities: Providing a fire-rated, vandal-resistant barrier for public buildings.