LCN 3031 Concealed Door Closer with Double Lever Arm - Powder Coat Finish

LCN 3031 Concealed Door Closer with Double Lever Arm - Powder Coat Finish

Professional Concealed Door Closer for Interior Applications

The LCN 3031 Concealed Door Closer delivers superior door control through its double lever arm design, engineered for installation within 1-3/4" interior doors. This ANSI/BHMA A156.4 Grade 1 certified closer features cast iron construction with a 1-1/8" diameter forged steel piston and meets ADA reduced opening force requirements. Designed for medium- to high-traffic areas with doors up to 4'0", the unit includes all-weather fluid and tamper-resistant regulating screws for reliable long-term performance.

Professional Features & Benefits

• Door Compatibility: Designed for 1-3/4" interior doors up to 4'0" width for versatile commercial applications.
• Heavy-Duty Construction: Cast iron cylinder with 1-1/8" diameter forged steel piston and full-complement bearing for exceptional durability.
• Superior Door Control: Double lever arm design provides optimal door control with separate regulation of general closing speed and latching speed.
• Grade 1 Certification: ANSI/BHMA A156.4 Grade 1 tested and certified with UL and cUL listing for self-closing doors without hold-open.
• ADA Compliance: Meets American Disabilities Act reduced opening force requirements for accessible design.
• All-Weather Performance: All-weather fluid and tamper-resistant regulating screws ensure consistent operation in varying conditions.
• Flexible Spring Sizing: Available in spring sizes 1, 2, 3, or 4 with closing power adjustable up to 15% for application-specific requirements.
• Manufacturer Warranty: 15-year limited warranty 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 door thickness of 1-3/4" and handing for right- or left-swinging doors.
2. Use manufacturer-provided templates to mark mounting hole locations accurately on door surfaces for concealed installation.
3. Prepare door by drilling required holes and routing as specified in manufacturer instructions for proper closer body placement.
4. Install mounting hardware using provided wood and torx security screws, securing the closer body within the door per manufacturer torque specifications.
5. Adjust operational components including spring size selection (1, 2, 3, or 4) and closing power settings for proper door control and latching speed.
6. Test closer operation to verify proper function, ADA compliance, and smooth door control throughout the full range of motion. Refer to manufacturer documentation for complete installation details and adjustment procedures.

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 LCN Quality?

LCN 3031 door closers deliver professional-grade reliability with cast iron construction and forged steel components rated for Grade 1 performance standards. The 15-year limited warranty demonstrates LCN's commitment to long-term durability and customer satisfaction. Engineered for demanding commercial applications where dependable door control and ADA compliance are essential.

Product Documentation & Resources

• [Catalog] LCN Full Line Catalog