Accentra (Yale) 3148 Narrow Top Rail Drop Plate, Parallel Arm

The Accentra (Yale) 3148 Narrow Top Rail Drop Plate is a mounting accessory designed for use with Accentra 3000 Series door closers in parallel arm applications. This drop plate provides the necessary spacing and surface area when installing a closer on narrow top rail doors where standard mounting is not possible. Built to support reliable parallel arm installations, the 3148 helps maintain proper alignment and secure attachment on doors with limited frame or rail space. It is a practical solution for commercial door setups that demand both durability and correct fitment in tight mounting conditions.

Features

• Designed specifically for parallel arm closer installations on narrow top rail doors.
• Compatible with the Accentra (Yale) 3000 Series surface door closers.
• Provides proper mounting surface where narrow top rails limit standard installation.
• Durable construction suited for commercial-grade door hardware applications.
• Helps ensure correct closer alignment and secure attachment.

Functional Details

The drop plate mounts to the door face and relocates the closer body to accommodate narrow top rail conditions, allowing the parallel arm configuration to function correctly while maintaining proper geometry between the closer and the frame bracket.