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Sargent 351 PSH Powerglide® Door Closer | Heavy Duty Parallel Hold Open Arm with Positive Stop
The Sargent 351 PSH Door Closer represents the peak of heavy-duty door control, specifically engineered for high-traffic environments where both a physical stop and a reliable hold-open feature are required. As part of the prestigious Powerglide® 351 Series, this model includes the PSH Heavy Duty Parallel Arm, which features a forged steel construction and an integrated Positive Stop. This design prevents the door from opening beyond a set point (85° to 110°), protecting the adjacent walls and hardware from damage while providing a convenient hold-open function for high-frequency transitions.
The 351 Series is distinguished by its high-silicon aluminum alloy body (containing 14% silicon) and heat-treated full closed rack and pinion, offering unparalleled wear resistance. This ANSI/BHMA Grade 1 closer is fully non-handed and adjustable from Size 1 to 6, making it a robust, code-compliant solution for institutional settings like schools, hospitals, and office complexes.
Performance & Protection Features
- Dual-Function PSH Arm: Combines a forged steel positive stop with a friction hold-open mechanism that can be easily engaged, disengaged, or adjusted for tension.
- Advanced Hydraulic Control: A large 1-1/2" diameter piston ensures smooth operation, while low-sensitivity brass valves provide independent regulation of closing speed, latching speed, and backcheck.
- All-Weather Reliability: Pre-filled with all-weather hydraulic fluid, the closer maintains consistent closing force in extreme temperatures without requiring seasonal valve adjustments.
- Tamper-Resistant Engineering: All adjustment valves are controlled by an 1/8" Allen wrench and are captivated to prevent them from being accidentally removed or vandalized.
- Code Compliance: UL/cUL listed for use on fire-rated doors (up to 3 hours) and compliant with UL10C and UBC positive pressure standards.
- MicroShield® Protection: Available with an optional antimicrobial silver-based coating to permanently suppress the growth of bacteria and mold.
Technical Specifications
| Feature | Details |
| Manufacturer | Sargent (ASSA ABLOY) |
| Model Number | 351 PSH (Positive Stop Hold Open) |
| Certification | ANSI/BHMA A156.4 Grade 1 |
| Arm Type | Heavy Duty Parallel Arm with Positive Stop & Hold Open |
| Spring Power | Adjustable Size 1 through 6 (Factory set to 3) |
| Door Opening Range | Adjustable stop/hold between 85° and 110° |
| Piston Diameter | 1-1/2" for Industrial Strength |
| Body Construction | One-Piece Die-Cast Aluminum Silicon Alloy (14% Silicon) |
| Warranty | 25-Year Limited Mechanical Warranty |
Installation & Finish Options
The Sargent 351 PSH is designed for push-side parallel arm installation. The package is comprehensive, including machine screws, self-tapping screws, and wood screws. For the highest security and stability on wood doors, it is recommended to use the included thru bolts. This model also retrofits easily into existing Sargent layouts, minimizing downtime during facility upgrades.
Available at DoorwaysPlus.com in professional architectural finishes: Aluminum Enamel (EN), Dark Bronze Enamel (EB), and Brass Enamel (EAB).
| 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 |
| Hold Open | Hold Open |
| Closer Body Hole Pattern | 9" x 2 1/2" |
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