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Sargent 351 PS Powerglide® Door Closer | Heavy Duty Parallel Arm with Positive Stop
The Sargent 351 PS Door Closer is a premier, heavy-duty surface closer engineered for the most demanding high-traffic commercial and institutional environments. Part of the industry-leading Powerglide® series, the 351 PS features a Heavy Duty Parallel Arm with an integrated Positive Stop. This specialized arm mechanically limits the door's opening range (adjustable between 85° and 110°), protecting the door, frame, and adjacent walls from damage without the need for an external overhead stop.
Constructed from a unique 14% silicon aluminum alloy, the one-piece die-cast body provides superior strength and wear resistance. The heat-treated full closed rack and pinion ensures total hydraulic control throughout the entire door cycle. This ANSI/BHMA Grade 1 closer is fully adjustable from Size 1 to 6, making it a robust solution that meets all ADA accessibility requirements while providing the power needed for large exterior or fire-rated doors.
Professional Performance & Protection Features
- Integrated Positive Stop: The forged steel PS arm includes a built-in stop that prevents the door from over-swinging, making it ideal for corridors or areas where wall-mounted stops cannot be used.
- Industrial Strength Construction: The 351 Series is built to exceed 25 million cycles, featuring a 1-1/2" diameter piston for unmatched door control and longevity.
- Precision Control Valves: Tamper-resistant brass valves offer independent regulation of closing speed, latching speed, and backcheck. All valves are captivated to prevent accidental removal.
- All-Weather Reliability: Pre-filled with all-weather hydraulic fluid, ensuring consistent operation in extreme temperatures without the need for seasonal adjustments.
- Safety & Code Compliance: UL/cUL listed for use on fire-rated doors (up to 3 hours) and compliant with UL10C and UBC 7-2 positive pressure standards.
- MicroShield® Antimicrobial Option: Available with a silver-based finish that permanently suppresses the growth of bacteria, mold, and mildew—essential for healthcare and school settings.
Technical Specifications
| Feature | Details |
| Manufacturer | Sargent (ASSA ABLOY) |
| Model Number | 351 PS (Powerglide®) |
| Certification | ANSI/BHMA Grade 1 (A156.4) |
| Arm Type | Heavy Duty Parallel w/ Positive Stop |
| Spring Power | Adjustable Size 1 through 6 (Factory set to 3) |
| Stop Range | Adjustable between 85° – 110° |
| Body Material | 14% Silicon Aluminum Alloy |
| Piston Diameter | 1-1/2" for Enhanced Control |
| Handing | Non-Handed |
| Warranty | 25-Year Limited Mechanical Warranty |
Installation & Architectural Finishes
The Sargent 351 PS is designed for a secure "push side" parallel arm installation. The package includes a high-impact, non-corrosive plastic cover and all necessary fasteners, including machine screws and self-tapping screws. For maximum stability on wood or mineral core doors, it is recommended to use the included thru bolts.
Available at DoorwaysPlus.com in three high-durability architectural finishes: Aluminum Enamel (EN), Dark Bronze Enamel (EB), and Brass Enamel (EAB). This model is also a direct upgrade for facilities standardizing their hardware across the Sargent 351, 1431, and 281 series.
| General - US Finishes | EN - Aluminum Enamel or EAB - Spray Gold or EB - Bronze Enamel |
| Brand | Sargent |
| Series | Sargent - 351 Series |
| Closer Arm Type | HD Positive Stop |
| Hold Open | Non-Hold Open |
| Closer Body Hole Pattern | 9" x 2 1/2" |
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