Pivots

Dorma Pivots
 

 


OP440 Pivot Set

CODE: OP440

CP440 Pivot Set

CODE: CP440

CPA440 Pivot Set

CODE: CPA440

Price: $211.87

Offset Pivot Set
All Door Types

Dorma Pivot Sets include both top and bottom pivots






Price: $169.38

Center Hung Set
Wood and HM Doors

Dorma Pivot Sets include both top and bottom pivots






Price: $184.34

Center Hung Set
Aluminum Doors

Dorma Pivot Sets include both top and bottom pivots








Pivot Set Selection Chart
Pivot Set
Aplication
Maximum Door Width
Maximum Door Weight
Fire Rated
Offset Hung Single-Acting
Center Hung Double-Acting
OP440 3/4" offset standard
4' - 0"
440 lb
*
*
OPF440 3/4" offset, up to 3 hour fire rated
4' - 0"
440 lb
*
OPJ350 3/4" offset side jamb
4' - 0"
350 lb
*
*
OPH750 3/4" offset heavy-duty
4' - 0"
750 lb
*
*
OPHF750
3/4" offset heavy-duty , up to 3 hour fire rated
4' - 0"
750 lb
*
OPL440 3/4" offset lead-lined
4' - 0"
440 lb
*
*
OPL800 3/4" offset lead-lined
4' - 0"
800 lb
*
*
OP15200 1-1/2" Offset
3' - 6"
200 lb
*
*
OP15500 1-1/2" offset heavy-duty
4' - 0"
500 lb
*
*
OPF15200 1-1/2 offset, up to 3 hour fire rated
3' - 6"
200 lb
*
OPF15500 1-1/2" offset heavy-duty, up to 3 hour fire rated
4' - 0"
500 lb
*
CP440 Center Hung, Wood or Steel door
4' - 0"
440 lb
*
*
CPA440 center hung, aluminum door
4' - 0"
440 lb
*
*
CP660 center hung medium -duty, wood or steel door
4' - 0"
660 lb
*
*
CP1000 center hung heav -duty , wood or steel door
6' - 0"
1000 lb
*
*
Shaded models are the most commonly ordered.

 

 

Center Hung vs Offset Hung

center hung vs offset hung

Most floor closers and pivots sold are offset hung.  The reason is that this style allows the door to open and move out and around any trim on the door frame.  It simply keeps the door from binding up with the frame.  Just like standard hinges, the pivot point (shown in red above) is moved out and away from the edge of the door.

Center hung configurations allow the door to swing both directions.  A store might have an entrance door that allows people to push it open regardless of which direction they are moving.  These also have the advantage of the weight of the door resting in plumb with its center line.  An offset hung configuration bears the weight off to one side, placing stress on the pivot point.

Note the bevel on the door in each example above.  An offset hung door can use a standard bevel in one direction only, but a center hung door must be beveled on both edges.

 

 

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