Rockwood 576 Gravity Door Coordinator | US26D Satin Chrome

The Rockwood 576 Gravity Door Coordinator is a critical safety component designed for pairs of swinging doors where one leaf (the active door) must close after the other (the inactive door). This is especially vital for doors equipped with an astragal, as improper closing sequences can prevent the doors from latching or sealing correctly. Crafted from heavy-duty cast brass, the Rockwood 576 provides a reliable, mechanical solution to ensure your fire-rated double doors remain compliant with NFPA 80 standards.

Essential Safety & Compliance Features

• Automatic Sequencing: The gravity-arm mechanism holds the active door open until the inactive door reaches the closed position, at which point the arm drops and allows the active door to close.
• Fire-Rated Integrity: Designed to meet the rigorous demands of fire-rated openings, ensuring that smoke and fire seals (astragals) function as intended during an emergency.
• ANSI/BHMA Certified: Meets ANSI A156.3: Type 21 standards, guaranteeing high-cycle durability and consistent performance in commercial environments.
  
• Non-Handed Design: The 576 is fully reversible, allowing for seamless installation on both left-hand and right-hand swinging door pairs.
  

Technical Sizing & Astragal Compatibility

This coordinator is engineered for specific door widths based on the astragal configuration (assuming standard hinges and a maximum 7/8" astragal overlap):

• Astragal on Active Door: Fits doors 18" to 48" wide.
• Astragal on Inactive Door: Fits doors 18" to 34" wide.
• Astragal on Both Doors: Fits doors 18" to 30" wide.
  

Product Specifications

• Model: Rockwood 576
• Material: Cast Brass
• Finish: US26D (Satin Chrome)
• Body Size: 1" x 5-7/16"
  
• Arm Projection: 7"
• Fasteners Included: * Body: 2 ea. #10 x 1 FH SMS; 2 ea. 10-24 x 1 FH MS
  • Strike: 5 ea. #8 x 1 FH SMS
• Finishes by Quote: US3, US4, US10, US10B, US10BE, US26.

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