3790 – Gravity Coordinator with 7" Arm
Gravity-operated coordinator with roller arm preventing active door closure before inactive door with field-adjustable components for installation ease.
Key Features
- Gravity Operation
- Closing Inactive Door Causes Strike Plate to Lift Arm and Close Active Door
- Field Adjustable
- Nylon Roller Design
- UL Listed for Use on Paired Swinging Fire Doors with Astragal (up to 3 hours)
- ANSI/BHMA A156.3 Compliant, Type 21 Compliant (Gravity Coordinator)
Technical Specifications
| Material | Cast Metal |
| Finishes | US32D, S2/BSPC, S3/BZPC, S4/BSPC, S5/DBPC, S8/WSPC, Custom Finishes Available |
| Roller Arm Size | 7" |
| Weight | 2.5 lbs. average per unit |
| Active Door Width | Up to 4'0" wide maximum |
| Inactive Door Width | Up to 3'4" wide maximum |
| Minimum Door Width | Both doors over 2'10" wide |
Available Options
- SEC – Security Fasteners provided for all exposed screws
3760 – Carry Bar for Inactive Door
Carry bar mounting on inactive door preventing damage to doors and hardware when inactive door can be opened before active door.
Key Features
- Damage Prevention When Inactive Door Can Be Opened Before Active Door
- Inactive Door Mount
- 3700 Full Bar Coordinator or 3790 Gravity Coordinator Compatible
- Flush Bolt Alternative
- Lightweight Design
- Not Available in US28 Finish
Additional Information
Protective accessory ensuring system integrity when door opening sequence varies.
Technical Specifications
| Material | Stainless Steel |
| Finishes | S1/ALPC, S2/BSPC, S3/BZPC, S4/BSPC, S5/DBPC, S8/WSPC, Custom Finishes Available |
| Weight | 0.75 lbs. average per unit |
3780 – Universal Coordinator for Paired Doors
Universal coordinator for paired doors up to 8' wide providing sequential closing without requiring mounting brackets for stop mounted hardware.
Key Features
- Universal Design
- 8' Door Width Capacity
- Stop Mounted
- Not Available in US28 Finish
- US Patent No. 6,250,014
- Meets or exceeds ANSI/BHMA A156.3, Type 21 (with carry bar)
- UL Listed for use on paired swinging fire doors with astragal (up to 3 hours)
Additional Information
Patented universal design eliminates mounting bracket requirements for reliable operation.
Technical Specifications
| Material | Stainless Steel |
| Finishes | S1/ALPC, S2/BSPC, S3/BZPC, S4/BSPC, S5/DBPC, S8/WSPC, Custom Finishes Available |
| Weight | 3.0 lbs. average per unit |
| Mounting Type | Stop mounted, mounting brackets not required |
| Restrictions | Not for use with exposed vertical rod panic devices |
| Operation | Long arm holds active door open until short arm is depressed by inactive door |
Available Options
- SEC – Security Fasteners provided for all exposed screws
Documents & Spec Sheets
Cut Sheets
- 3790 Cut Sheet (PDF)
- 3760 Cut Sheet (PDF)
- 3780 Cut Sheet (PDF)
Templates
- 3790 Gravity Coordinator Template (PDF)
- 3760 Carry Bart Template (PDF)
- 3780 Universal Coordinator Template (PDF)
Product Selection Tools
- Cross Reference 2025 (PDF)
Forms
Models
- 3790 – 7" Gravity Coordinator
- 3760 – Carry Bar
- 3780 – Universal Coordinator
Pricing per ABH Price List No. 15. Contact us for custom sizes and options.