Dorex 751AL Door closer, size 1 (interior doors)

 Product Overview

The Dorex 751AL Door Closer (Size 1) is designed for light-duty interior commercial doors where controlled closing and reliability are required. It is commonly used in offices, retail spaces, and low-traffic institutional environments.

Key Features

• Size 1 Spring Power – Ideal for lightweight interior doors
• Aluminum Finish (AL) – Clean, neutral appearance for commercial settings
• Adjustable Closing Speed – Separate sweep and latch speed valves
• Rack and Pinion Design – Smooth, consistent performance
• Surface Mounted – Easy installation on wood or hollow metal doors
• Non-Handed – Can be installed on left or right-hand doors

Recommended Applications

• Interior office doors
• Small retail spaces
• Medical or professional offices
• Low-traffic commercial areas

This closer is not intended for heavy exterior doors or high-wind applications.

Technical Specifications (Typical for Size 1 Closers)

• Door Width Range: Typically up to 30"–32" interior doors
• Mounting Options: Regular arm (standard surface mount)
• Material: Cast aluminum body
• Adjustments: Sweep speed and latch speed
• Arm Type: Standard arm included

Why Choose a Size 1 Closer?

Size 1 closers are best when:

• Door weight is light
• Opening frequency is moderate to low
• Interior environmental conditions are stable
• You want smooth, controlled closing without over-powering the door