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Ives Fire-Rated Pocket Pivot Set for Heavy-Duty Doors Up to 90 lbs
Professional Fire-Rated Pivot Solution for Commercial Applications
The Ives fire-rated pocket pivot set delivers professional-grade performance for heavy-duty commercial doors up to 90 pounds per pivot. This full mortise pivot system is specifically designed for 1-3/4" door thickness and provides 3-hour fire rating when used with steel frames. The non-handed design allows doors to open a full 90В° while distributing weight throughout the floor and structure to reduce frame stress.
Professional Features & Benefits
- Heavy-Duty Load Capacity: Maximum door load of 90 pounds per pivot with recommended three pivots for doors 7'0" tall and one every 2'6" for taller doors as needed.
- Fire-Rated Performance: 3-hour fire rating certification with UL 10C testing approval for critical fire safety applications.
- Full Mortise Installation: Designed for 1-3/4" door thickness only with full mortise mounting for secure integration.
- Structural Load Distribution: Reduces stress on the frame by distributing door weight throughout the floor and structure, leveraging structural strength for heavy door applications.
- Precision Operation: Positive locking vertical adjustment mechanism allows installers to precisely position the door and balance the load for smooth operation.
- Superior Corrosion Resistance: Stainless steel construction with all exposed parts made for maximum corrosion resistance in demanding environments.
- Professional Certification: Certified to ANSI 156.26, Grade 1 and meets ANSI/BHMA A156.4 C07611 standards for commercial applications.
- Flexible Door Opening: Non-handed design allows door to open a full 90В° for maximum accessibility and traffic flow.
Technical Specifications
- ANSI/BHMA: Meets ANSI/BHMA A156.4 C07611
- Application: Heavy-Duty, Fire-Rated
- Commercial/Residential: Commercial
- Department: Door Hardware
- Door Weight: Up to 90 lbs
- Duty Level: Standard Duty
- Electronic: No
- Fire Rated Time: 3 hours
- Fire Rating: Yes
- Mounting Method: Pocket
- Pivot Type: Top & Bottom
- Product Attribute: Pivots
- Product Category: Door Hinges and Pivots
- Product Group: Door Hinges and Pivots
- Product Model: 91105F
- Product Subgroup: Pivots and Pivot Sets
- Product Substrate: Stainless Steel
- Product Type: Pocket Pivots
- Subcategory: Hinges and Pivots
Installation & Operation
- Review manufacturer specifications and verify door preparation requirements including 1-3/4" door thickness, steel frame construction for fire rating, and maximum door size of 4'0" X 8'0".
- Use manufacturer-provided templates to mark mounting hole locations accurately for full mortise installation on door and frame surfaces.
- Prepare door and frame by drilling required holes and routing as specified in manufacturer instructions for pocket pivot mounting.
- Install three pivots for doors 7'0" tall and one every 2'6" for taller doors as needed, securing all mounting hardware per manufacturer torque specifications.
- Adjust the positive locking vertical adjustment mechanism to precisely position the door and balance the 90-pound maximum load per pivot for proper alignment.
- Test pivot operation to verify smooth 90В° door opening and make final adjustments as needed. Refer to manufacturer documentation for complete installation details and fire rating requirements.
Professional Applications
- Commercial Office Buildings
- Educational Facilities
- Healthcare Institutions
- Industrial and Warehouse Facilities
- Government and Municipal Buildings
- Fire-Rated Door Systems
- Heavy-Duty Commercial Entrances
Why Choose Ives Quality?
Ives fire-rated pivot systems deliver professional-grade reliability with stainless steel construction and precision bearings for smooth operation under heavy loads up to 90 pounds per pivot. Certified to ANSI 156.26, Grade 1 with UL 10C testing approval for 3-hour fire rating, these pivots exceed industry standards for demanding commercial applications. Engineered for heavy doors where structural load distribution and fire safety compliance are essential.
Manufacturer Resources
Ives Full Line Catalog
Product Specs
- Subcategory:
- Hinges and Pivots
- Product Group:
- Door Hinges and Pivots
- Product Subgroup:
- Pivots and Pivot Sets
- Product Type:
- Pocket Pivots
- ANSI/BHMA:
- Meets ANSI/BHMA A156.4 C07611
- Door Weight:
- Up to 90 lbs
- Commercial/Residential:
- Commercial
- Duty Level:
- Standard Duty
- Fire Rated Time:
- 3 hours
- Electronic:
- No
- Pivot Type:
- Top & Bottom
- Mounting Method:
- Application:
- Heavy-Duty, Fire-Rated
- Product Attribute:
- Pivots
- Product Model:
- 91105F
- Fire Rating:
- Yes
- Product Category:
- Door Hinges and Pivots
- Product Substrate:
- Stainless Steel
- Department:
- Door Hardware
Ives 91105F US32D – Frequently Asked Questions
1) Will the Ives 91105F pocket pivot work on a 1-3/8 inch door?
No. The 91105F is built for 1-3/4 inch door thickness only, which is the standard commercial thickness. A 1-3/8 inch door, common on older interior openings, will not take this mortise prep correctly and you need a different pivot for it.
2) Does the Ives 91105F pivot keep a 3-hour fire rating on a wood frame?
The 3-hour rating on the 91105F applies when it is used with steel frames. That is the condition stated for the rating, and the pivot is UL 10C tested. On anything other than a steel frame, do not count the assembly as carrying that 3-hour rating.
3) Is the Ives 91105F pocket pivot handed, and do I have to order left or right?
Non-handed. One set covers either swing, so you don't specify handing when ordering, and you can stock a single part number across a building of mixed-swing openings. Finish is the only choice on the order.
4) Does the Ives 91105F meet ANSI Grade 1 for a spec that calls for certified pivots?
It is certified to ANSI 156.26, Grade 1, and meets ANSI/BHMA A156.4 C07611. If the drawing calls out a C07611 pivot set, that is this designation exactly. Commercial application, fire rated, with UL 10C testing behind the 3-hour rating.
5) What is the cross-brand equivalent to the Ives 91105F fire-rated pocket pivot?
The Norton Rixson F519 is the closest peer. Both are fire-rated pocket pivots carrying a 3-hour rating, so either will hold a fire-rated opening where the door has to swing clear of a pocket. The Ives 91105F is a top and bottom pocket pivot set built in stainless steel and meets ANSI/BHMA A156.4 C07611 at up to 90 lbs per pivot; the F519 is the Norton Rixson F519 series and is built in steel. Where the specifier has written a stainless exposed part or the A156.4 C07611 designation into the schedule, the 91105F is the one that answers it directly.
6) The door is heavier than 90 pounds per pivot - what fire-rated pocket pivot should I use instead of the 91105F?
Look at the Norton Rixson F519 for that opening. The Ives 91105F is rated to 90 lbs per pivot and is catalogued at standard duty, so a leaf that puts more than 90 lbs on each pivot point is outside what it is built for. The F519 is a fire-rated pocket pivot carried at heavy duty with steel construction, and it holds the same 3-hour fire rating, so the fire schedule does not change when you swap. Confirm the actual leaf weight and the number of pivots in the opening before you order either one.
7) What prep does the door and frame need for Ives 91105F pocket pivots?
Full mortise on both the door and the frame, cut from the manufacturer's templates: drill the mounting holes and route the pockets to the printed dimensions, then set the vertical adjustment once the door is hung. It is not a surface-applied part, so a door already prepped for butt hinges has to be re-prepped or replaced.
8) Why use pocket pivots instead of heavy-weight hinges on a heavy commercial door?
Pivots carry the door's weight down through the floor and structure rather than hanging it off the frame, so the frame sees far less stress. On a heavy door that is the difference between an opening that stays aligned and one that sags and drags. The Ives 91105F set is a top and bottom pivot arrangement in stainless steel, and it includes a positive locking vertical adjustment so the installer can set door height and balance the load after hanging, which hinges do not give you.
9) Can I put the Norton Rixson F519 in an opening the drawing specs as Ives 91105F, or does it need approval?
Treat it as a submitted substitution rather than a like-for-like drop in. The F519 matches on the two things the fire schedule cares about - it is a fire-rated pocket pivot at a 3-hour rating, the same 3 hours the Ives 91105F carries. What differs is the material and duty callout: the 91105F is stainless steel at standard duty and carries the ANSI/BHMA A156.4 C07611 designation, while the F519 is a steel heavy-duty unit in the F519 series. On a hospital or school job where the hardware schedule cites C07611, submit the F519 for approval before cutting the frame prep, because the pocket routing is not something you undo.
10) What finishes does the Ives 91105F pocket pivot set come in?
Nine finishes: 605 Bright Brass, 612 Satin Bronze, 613 Satin Bronze Oil-Rubbed, 619 Satin Nickel, 629 Bright Stainless Steel, 630 Satin Stainless Steel, 643E Aged Bronze, 695 Dark Bronze, and 600 Primed for Painting. The 600 is the one to order if the openings are being painted out to match a door or frame color, since the other eight are fixed architectural finishes.
11) Will Ives pocket pivots hold up in a humid or wash-down environment?
All exposed parts are stainless steel for corrosion resistance, which is what makes the 91105F usable in pool areas, kitchens, and other damp commercial spaces where a plated steel pivot would rust. Pick 630 satin stainless or 629 bright stainless if you want the finish itself to be stainless rather than a plated coating.
12) Do Ives 91105F pocket pivots need electrical power or a power transfer?
No power involved. The 91105F is a purely mechanical pivot set, so there is no wiring, no transfer, and nothing to coordinate with an access control contractor. If the opening needs current through the door for an electrified lock, that has to come from a separate power transfer device.
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Does the Ives 91105F US32D come with a warranty?
Absolutely. The Ives 91105F US32D is backed by a manufacturer’s warranty.
For full warranty terms, check the product documentation or Contact Us.
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