Norton Door Closers 410 Door Closer Heavy 689

Norton 410 Heavy-Duty Hydraulic Door Closer

The Norton 410 is a manual hydraulic door closer built for interior and exterior openings that see heavy traffic. Its cast-iron parallel arm and aluminum-painted housing deliver Grade 2 durability under the ANSI A156.4 standard. The non-handed design allows installation on left- or right-hand doors without extra parts.

Replaces worn Grade 3 closers

When an existing closer fails to control a heavy door in a busy corridor or entrance, the Grade 2 rating and UL/cUL listing show this unit is tested for higher cycle counts and fire-door requirements. The jump is worth it when code compliance or frequent use demands a closer that maintains consistent closing force over time.

Limited to parallel, regular or top-frame mounting

The fixed parallel arm geometry means the closer cannot be adapted to slide-track or track-type installations. Installers must verify that the frame and door reveal suit one of the three listed mounting styles before purchase.

ANSI A156.4 Grade 2 compliance sets

The standard defines closing-speed range, back-check and latching force for Grade 2 hardware. This closer cannot exceed those limits, so specifiers needing Grade 1 cycle life or specialized delayed-action features must select a different product.