Sargent 125-V Support Bracket — For 1431, 351 & 281 Series Door Closers

The Sargent 125-V Support Bracket is a heavy-duty mounting accessory designed to provide a secure fifth screw-hole anchor point for parallel arm and compression-stop arm configurations on Sargent surface-mounted door closers. Required for specific arm types and narrow stop conditions, this bracket ensures proper load distribution and long-term closer performance on commercial door applications.

Key Benefits

• Required for heavy-duty arm types — Provides the essential 5th screw hole needed for PS, PSH, P10, PH10, CPS, and CPSH parallel/compression-stop arms that cannot be secured with the standard four-hole pattern alone.
• Mandatory for narrow door stops — Required whenever the door stop width is less than 3 inches, preventing arm flex and ensuring the closer assembly stays rigid under repeated cycling.
• Broad closer compatibility — Fits the Sargent 1431 Series, 351 Powerglide Series, and 281 Series surface door closers, covering a wide range of commercial interior and exterior door applications.
• Two finish options — Available in EN (Aluminum Enamel) and EB (Bronze Enamel) to coordinate with door and frame finishes in commercial, institutional, and healthcare environments.

Compatible Arm Types

The 125-V bracket is specifically designed for use with the following Sargent arm configurations:

• PS — Parallel Arm with Positive Stop
• PSH — Parallel Arm with Positive Stop and Hold Open
• P10 — Parallel Arm (Hold Open, up to 180°)
• PH10 — Parallel Arm Hold Open variant
• CPS — Compression Stop Parallel Arm
• CPSH — Compression Stop Parallel Arm with Hold Open

These are all heavy-duty parallel arm types used in high-traffic commercial doors, OR corridor doors, and fire-rated door assemblies where the closer must deliver consistent positive-stop or hold-open function.

Applications

• Commercial office buildings and institutional facilities requiring parallel arm closer installations
• Healthcare and hospital corridor doors where P10 or CPSH arms are specified for magnetic hold-open systems
• Any door where the stop width is under 3 inches — a condition that makes this bracket mandatory, not optional
• Replacement and retrofit installations on existing Sargent 351, 1431, or 281 closer assemblies

Technical Details

Note: If you are specifying a new closer installation or evaluating alternatives to the Sargent 351 or 1431 closer lines, comparable surface-mounted door closers with stable parts availability are offered by Hager, Norton, PDQ, and Corbin Russwin. Contact us for a quote on equivalent configurations.