Norton 210-HDN Heavy Duty Surface Door Closer, Tri- Mounted, Multi-Size 1 to 6, Grade 1, Non-Handed

The Norton 210-HDN is a heavy duty surface-mounted door closer engineered for demanding commercial and institutional openings. Built to Grade 1 standards, this closer features tri-mounting versatility, allowing installation in regular, top jamb, or parallel arm configurations to suit a wide range of door and frame conditions. The non-handed design simplifies inventory and installation, while the adjustable multi-size spring range from 1 through 6 provides precise control across varying door widths and traffic conditions. With independent valves for closing speed, latching speed, and backcheck, the 210-HDN delivers reliable, long-lasting performance in high-use environments such as schools, offices, and healthcare facilities.

Features

• Heavy duty cast iron body designed for high-frequency commercial applications.
• Tri-mounting capability supports regular, top jamb, and parallel arm installations.
• Non-handed for use on both left-hand and right-hand doors.
• Adjustable multi-size spring power from 1 to 6 for flexible sizing.
• Separate adjustment valves control closing speed, latching speed, and backcheck.
• Grade 1 rated for durability and consistent operation.

Functional Details

The 210-HDN uses a hydraulic mechanism with independent valve adjustments to manage door movement throughout the closing cycle, giving installers precise control over speed and cushioning while protecting the frame and hardware.

• Adjustable spring power sizes 1 through 6.
• Separate regulating valves for closing and latching speed.
• Adjustable backcheck to cushion door swing.
• Non-handed, non-sized closer body.

Arm Type Details

The tri-mounted design ships with a standard arm that accommodates regular (hinge side), top jamb, and parallel arm mounting. This allows the same closer to be applied to varied door and frame configurations without additional handing considerations.