Gravity Door Coordinator is a heavy‑duty mechanical control device specially designed for double fire doors and commercial double doors. It adopts gravity‑driven mechanical operation to automatically control the closing sequence of double doors: ensuring the active door closes first, and the inactive door closes last to achieve perfect sealing, comply with fire safety standards, and provide stable long‑term performance.
Widely used in fire‑rated doors, commercial buildings, offices, hotels and industrial applications. Features stainless steel construction, surface‑mounted design, easy installation, low maintenance and reliable sequence control.
Product Parameters
Item | Specification |
|---|
Product Name | Gravity Door Coordinator |
Material | Stainless Steel 304 |
Operation Mode | Gravity‑Driven Mechanical Sequencer |
Function | Door Closing Sequence Control |
Installation | Surface Mounted (Top Jamb) |
Suitable Active Door Width | 450mm ~ 1200mm |
Suitable Inactive Door Width | 450mm ~ 850mm |
Overall Size | L169 x W140 x H27.5mm |
Working Temperature | -20℃ ~ 60℃ |
Service Life | ≥50,000 cycles |
Certifications | Meet Fire Door Requirements |
Package | 1 set / box |
Key Features
Gravity operated, no power required
Ensures correct fire door closing sequence
Stainless Steel 304, rust‑resistant and durable
Compact size, easy installation & adjustment
Stable, quiet and low maintenance
