Dorma CP440 Double Acting Center Hung Pivot Set, Wood or Steel Door, Up to 440 lb

The pivot point sits centered in the thickness of the door, which means the door has to have a radius machined on the pivot edge so it can swing clear. That's not optional prep. Plan the radius before the door is finished, because a square edge will bind against the frame on the swing.

It's a complete set: the Dorma 7471K floor bearing, the 7421 bottom arm and the 8062 top pivot, furnished with machine screws. Nothing else to order for the pivot itself. Note the mounting split, the floor bearing lands on the floor surface while the top pivot mortises into the top jamb or header, so the header has to be prepped.

The Dorma CP440 is a double acting center hung set whose doors do not return to center, with the floor bearing mounted to the floor surface. Where a hospital door needs to swing double acting and return, Hager makes heavy duty hospital pivot sets by floor type: the Hager 510 Camtrol double acting hospital pivot set for wood floors, the Hager 512 Camtrol double acting surface hospital pivot set for masonry floors, and the Hager 511 mortise hospital pivot set for masonry floor installation. Pick by the floor you are anchoring into and whether you can cut in a mortise.

No. The Dorma CP440 is a center hung set for wood or steel doors and frames, with the pivot point centered in the thickness of the door and a radius required on the pivot edge. Aluminum storefront leaves take an offset pivot matched to the door line: the Kaba Ilco IL-OP-12 Series for Armalite and Trulite style doors, the IL-OP-13 Series 1/8" recessed pivot set for aluminum doors and frames and YKK style doors, the IL-OP-14 Series for US Aluminum and Arcadia style doors, and the IL-OP-15 Series for Pittco and Efco style doors. Identify the door manufacturer first, because these are not interchangeable across door lines.

Non-handed. One CP440 set covers either hand, and it works single acting or double acting, so you can stock one part number across a run of openings that swing different directions.

Center hung, like the CP440, puts the pivot on the door's centerline so the leaf can swing both directions and the load goes straight down into a floor bearing. That's what you want for a heavy door, up to 440 lbs here, or any door that has to swing two ways. A full mortise center hung pivot such as the Hager 500, which fits 1-3/8 to 1-3/4 inch doors, mortises into the door and frame instead of surface mounting the bearing to the floor, so it's the choice when you can't have hardware sitting on the finished floor.

Commercial. The CP440 is a standard duty commercial pivot set. On a high traffic opening, a hospital corridor, or anything getting cart and gurney abuse, step up to a heavy duty set such as the Hager 511 mortise hospital pivot for masonry floors or the Ives 7255J with the bottom jamb mount.

Both are standard duty center hung pivots and neither is fire rated. The Dorma CP440 is a complete double or single acting set for wood or steel doors and frames, made up of the 7471K floor bearing, 7421 bottom arm and 8062 top pivot, with the floor bearing mounted to the floor surface. The Hager 500 is a full mortise center hung pivot with rack and pinion in standard weight brass construction, for doors 1-3/8" to 1-3/4" thick. Confirm your door thickness before you choose between them.

No, despite both being standard duty non fire rated pivots. The Dorma CP440 is a center hung set, meaning the pivot point sits centered in the thickness of the door and the door edge must be radiused, and it is built for wood or steel doors and frames. The Kaba Ilco IL-OP-13 Series is a 1/8" recessed offset pivot set for aluminum doors and frames in YKK style doors, so the door hangs off a pivot set forward of center. The two prep the door and frame differently and cannot be swapped on the same opening.

Four finishes: 605 bright brass, 613 dark bronze oil-rubbed, 625 satin chrome and 626 satin chrome. If you're matching existing hardware across a building, 626 is the common satin chrome on commercial door hardware and 613 is the one to pick against dark bronze storefront and lever trim.

No, the CP440 is a purely mechanical pivot set with no electrical option, so there's no power transfer through it. Run your door cord or an electric hinge or transfer device separately if the opening needs power to the leaf.