Sargent 8231-ET Heavy Duty Single Cylinder Mortise Lock with Utility Function and Escutcheon Trim

Sargent 8231-ET Heavy Duty Single Cylinder Mortise Lock with Utility Function and Escutcheon Trim

Industry Benchmark Mortise Lock with Maximum Security and Performance

The Sargent 8231-ET represents the industry benchmark for commercial mortise locks, delivering maximum security, performance, and durability with high-quality components. This heavy duty single cylinder mortise lock features a 2 3/4" backset, 1 3/4" door thickness compatibility, and 3/4" latchbolt throw for reliable operation. The multi-functional lock body accommodates utility function operation while maintaining Grade 1 operational performance per ANSI/BHMA A156.13 Series 1000 standards.

Professional Features & Benefits

• Heavy-Duty Construction: Exceeds independently verified testing with completion of UL Cycle Above and Beyond test at 16 million cycles (Verification ID: V584148) for exceptional durability in high-traffic commercial applications.
• Standard Door Specifications: Designed for 1 3/4" door thickness with 2 3/4" backset depth and 3/4" latchbolt throw for reliable latching performance.
• Grade 1 Performance: ANSI/BHMA A156.13 Series 1000 Operational Grade 1 certification ensures maximum security and durability for commercial installations.
• Universal Key System Integration: Integrates with all SARGENT key systems including Degree, Signature, KESO, and XC for comprehensive access control flexibility.
• Comprehensive Fire Rating: UL-cUL Fire-Rated up to 3 hours with UL 10C positive pressure certification for critical fire safety applications.
• EcoFlex Technology: Electromechanical versions operate from 12 to 24VDC with EcoFlex technology creating up to 89% energy savings and 96% power consumption reduction.
• Extensive Function Options: Available in 56 different functions including electromechanical, security and monitoring configurations for diverse application requirements.
• Manufacturer Warranty: 10-year limited warranty with 2-year coverage on electrical components for added confidence and protection.

Technical Specifications

• Refer to manufacturer documentation for complete technical specifications.

Installation & Operation

1. Review manufacturer specifications and verify door preparation requirements including 1 3/4" door thickness, 2 3/4" backset requirements, and field reversible handing as applicable to this mortise lock.
2. Use manufacturer-provided templates to mark mounting hole locations accurately on door and frame surfaces for proper mortise preparation.
3. Prepare door and frame by drilling required holes and routing mortise cavity as specified in manufacturer instructions for the lock body and strike plate.
4. Install all mounting hardware including lock body, trim components, and strike plate, securing to door and frame per manufacturer torque specifications.
5. Adjust operational components including latchbolt, deadbolt, and lever mechanism for proper alignment, latching, and smooth operation throughout the full range of motion.
6. Test device operation to verify proper function of all lock components and make final adjustments as needed. Refer to manufacturer documentation for complete installation details and troubleshooting.

Professional Applications

• Commercial Office Buildings
• Educational Facilities
• Healthcare Institutions
• Retail Establishments
• Industrial and Warehouse Facilities
• Multi-Tenant Residential Properties
• Government and Municipal Buildings

Why Choose Sargent Quality?

Sargent 8200 Series mortise locks deliver professional-grade reliability with patented design and construction rated for 16 million cycles in UL testing. The 10-year limited warranty with 2-year electrical component coverage demonstrates the manufacturer's confidence in long-term performance. Engineered for demanding commercial applications where dependable security and maximum durability are essential.