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Ives COR7G/COR9G Brass Gravity Door Coordinator with Field-Adjustable Operation
Professional Gravity-Operated Door Sequencing Solution
The Ives COR7G/COR9G Brass Gravity Door Coordinator ensures proper door closing sequence for paired door applications. When the active door is open, this coordinator prevents it from closing until the inactive door bypasses, with the closing of the inactive door causing the strike plate to contact the cam and lift arm. This non-handed coordinator features field-adjustable gravity action arm and door bracket for ease of installation, with rubber and nylon rollers providing quiet, efficient operation while protecting astragal and doors from damage.
Professional Features & Benefits
- Field-Adjustable Design: Gravity action arm and door bracket are adjustable on the job for ease of installation and precise operation.
- Dual Roller System: Rubber roller provides quiet and efficient operation while protecting astragal and doors from damage, with nylon roller on short arm ensuring silent operation.
- Non-Handed Configuration: Universal design eliminates handing requirements for simplified specification and installation.
- Fire-Rated Performance: UL Listed for fire door applications ensuring code compliance in critical applications.
- ANSI A156.3 Compliance: Meets Type 21B standards for professional-grade door coordinator performance and reliability.
- Brass Construction: Durable brass substrate provides long-lasting performance in commercial door applications.
- Automatic Sequencing: Strike plate mechanism automatically controls door closing sequence without manual intervention.
Technical Specifications
- ANSI/BHMA: ANSI A156.3 Type 21B
- Commercial/Residential: Commercial
- Department: Door Hardware
- Door Hand Direction: Non-Handed
- Fire Rating: Yes
- Product Category: Door Controls
- Product Group: Door Controls
- Product Model: COR7G/COR9G
- Product Subgroup: Door Coordinators
- Product Substrate: Brass
- Product Type: Door Coordinators
- Subcategory: Flush Bolts and Coordinators
- UL Listing Type: UL Listed for fire doors
Installation & Operation
- Review manufacturer specifications and verify door preparation requirements including door thickness, stile width, and clearance requirements for coordinator mounting.
- Use manufacturer-provided templates to mark mounting hole locations accurately on door frame and stop surfaces.
- Prepare frame by drilling required holes and routing as specified in manufacturer instructions for coordinator and strike plate mounting.
- Install coordinator to frame stop and mount door bracket and strike plate to doors per manufacturer specifications.
- Adjust gravity action arm and door bracket on the job for proper alignment and smooth operation throughout the door closing sequence.
- Test coordinator operation to verify proper door sequencing and make final adjustments as needed. Refer to manufacturer documentation for complete installation details and troubleshooting.
Professional Applications
- Commercial Office Buildings
- Educational Facilities
- Healthcare Institutions
- Retail Establishments
- Industrial and Warehouse Facilities
- Multi-Tenant Residential Properties
- Government and Municipal Buildings
Why Choose Ives Quality?
Ives COR7G/COR9G gravity coordinators deliver professional-grade reliability with brass construction and ANSI A156.3 Type 21B compliance for demanding commercial applications. UL Listed for fire door applications with field-adjustable components for precise installation and operation. Engineered for dependable door sequencing performance where proper closing order is essential for security and code compliance.
Manufacturer Resources
Ives Full Line Catalog
Product Specs
- Subcategory:
- Flush Bolts and Coordinators
- Product Group:
- Door Controls
- Product Subgroup:
- Door Coordinators
- Product Type:
- Door Coordinators
- ANSI/BHMA:
- ANSI A156.3 Type 21B
- Commercial/Residential:
- Commercial
- UL Listing Type:
- UL Listed for fire doors
- Product Model:
- COR7G/COR9G
- Door Hand Direction:
- Non-Handed
- Fire Rating:
- Yes
- Product Category:
- Door Controls
- Product Substrate:
- Brass
- Department:
- Door Hardware
Ives COR7G26D – Frequently Asked Questions
1) What is a gravity coordinator and how does it work?
A gravity coordinator ensures proper door closing sequence on double doors. It uses gravity and spring tension to coordinate which door closes first, preventing conflicts between door closers.
2) What door configurations work with the COR7G and COR9G coordinators?
These coordinators work on pairs of doors with overlapping astragals or meeting stiles. Verify door alignment and clearances meet Ives specifications before installation.
3) How do I determine if I need a COR7G or COR9G model?
Model selection depends on door width, weight, and frame configuration. Check the manufacturer template for your specific application requirements and mounting dimensions.
4) What finish options are available for these brass coordinators?
Standard brass finish is available. For specific finish codes or custom options, verify availability through the manufacturer specifications for your project requirements.
5) What door weight capacity do these coordinators support?
Weight capacity varies by model and installation configuration. Consult the manufacturer specifications and consider door material, size, and hardware when selecting the appropriate coordinator.
6) Do these coordinators meet fire door code requirements?
Fire door applications require specific listings and approvals. Verify coordinator compatibility with your fire door assembly and check local code requirements with your AHJ.
7) What components are included with the coordinator?
Standard package includes the coordinator body, mounting hardware, and installation instructions. Check manufacturer specifications for complete component list and any required accessories.
8) Where does the coordinator mount on the door frame?
Coordinators typically mount to the frame head above the doors. Follow the manufacturer template for exact positioning, clearances, and structural support requirements.
9) How do I adjust the coordinator for proper operation?
Adjustment procedures involve spring tension and sequence timing settings. Follow manufacturer instructions for initial setup and field adjustments to ensure proper door coordination.
10) What maintenance is required for gravity coordinators?
Regular inspection of pivot points, spring tension, and mounting hardware. Clean debris from moving parts and verify proper door sequence operation during routine maintenance cycles.
11) Are there compatible alternatives to these Ives coordinators?
Browse our door coordinators section for alternative models. Verify mounting dimensions and operational specifications match your existing installation requirements.
12) What field conditions affect coordinator performance?
Wind pressure, temperature changes, and building settling can affect operation. Consider environmental factors and install wind chains or stops if needed for exterior applications.
How fast can I get the Ives COR7G26D delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the
continental
U.S.
Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit,
reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the Ives COR7G26D come with a warranty?
Absolutely. The Ives COR7G26D is backed by a manufacturer’s warranty.
For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the Ives COR7G26D?
You can call, text, or email our expert support team for fast answers. We’re here to help with
product
selection,
installation tips, and troubleshooting. Contact Us
Why buy the Ives COR7G26D from ZenSupply?
ZenSupply makes it easy to get the commercial door hardware you need—fast shipping, expert support,
and
rewards on
every order.
Our team is always ready to help you choose the right product for your project.