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Accentra 5821T Grade 1 Cast Iron Door Closer with Thumbturn Hold Open & Stop Arm
The Accentra 5821T Heavy Duty Door Closer (formerly the Yale 5800 Series) is a high-intent, industrial-grade solution designed for the most demanding commercial environments. Built with a rugged Cast Iron body, this closer provides the ultimate in durability where aluminum alternatives fall short. The 5821T features a specialized Heavy Duty Parallel Rigid Arm with a Thumbturn Hold Open and Removable Stop, offering a physical mechanical "dead stop" to protect the door and frame, combined with a user-controlled hold-open function for maximum facility flexibility.
As an ANSI/BHMA Grade 1 certified hardware solution, the 5821T is a direct retrofit for the LCN 4040, allowing for a seamless, high-strength upgrade to a more cost-effective yet equally robust door control system without the need for additional drilling or modifications.
Elite Mechanical Protection & Industrial Performance
- Rugged Cast Iron Construction: The high-strength cast iron housing offers superior wear resistance and consistent hydraulic performance, even in extreme high-use institutional applications.
- Thumbturn Hold Open & Stop Arm: The reinforced rigid arm includes an integrated mechanical stop to prevent over-extension of the door. The manual thumbturn allows staff to easily engage or disengage the hold-open feature for deliveries or high-traffic periods.
- Fully Adjustable Spring Power (Sizes 1-6): Provides ultimate versatility. Tune it to a low opening force for ADA accessibility compliance or maximize the power to secure heavy exterior doors against wind and pressure.
- Triple Valve Precision Control: Features independent, non-critical adjustment valves to customize Closing Speed, Latching Speed, and Backcheck. The Backcheck valve is critical for cushioning the door during a forceful opening, protecting the internal rack-and-pinion mechanism.
- Universal Handing: The non-handed design simplifies the ordering process and job-site installation, fitting both left and right-hand door swings seamlessly.
- Professional Aesthetics: Shipped with a full plastic cover that conceals all mounting fasteners and adjustment valves for a clean, tamper-resistant architectural finish.
Technical Specifications
| Feature | Details |
| Manufacturer | Accentra (Formerly Yale) |
| Model Number | 5821T |
| Arm Type | HD Parallel Rigid w/ Thumbturn Hold Open & Stop |
| Grade | Grade 1 Heavy-Duty (ANSI/BHMA A156.4) |
| Body Material | High-Strength Cast Iron |
| Power Size | Fully Adjustable Sizes 1–6 |
| Retrofit Compatibility | LCN 4040 Mounting Pattern |
| Compliance | UL/cUL 3-Hour Fire Rated, ADA A117.1, UL10C |
| Fasteners | Sleeve Nuts (Thru Bolts) included standard |
| Warranty | 10-Year Limited Warranty |
Professional Installation & Structural Reliability
The Accentra 5821T is engineered for a permanent, high-strength attachment. To ensure the hardware remains secure on hollow metal or wood doors that experience extreme physical stress or high-frequency use, this unit is shipped standard with sleeve nuts (thru bolts). This "sandwich-style" mounting method provides the structural stability required to prevent the hardware from loosening or pulling through the door over time, ensuring long-term safety and reduced maintenance costs.
| General - US Finishes | 689 - Spray Alumimun or 690 - Spray Dark Bronze |
| Brand | Accentra (formally Yale Security) |
| Series | Accentra - 5800 Series |
| Closer Arm Type | HD Positive Stop & Hold |
| Hold Open | Hold Open |
| Closer Body Hole Pattern | 1"/3"/1" x 2 1/4" (LCN 4040) |
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