Q: Please see this video:
Click Here
and let me know if you think the BB-600 will work.
Per the recommendation from my door/frame supplier suggested I try it. I never had this issue before. I also tried an 8" wide throw hinge as seen here:
Click Here
but as you see it is not wide enough. You asked for a cross section of the jamb and here it is:
View Image
A: I understand per this video you want to have the door that needs to goto 180 degree to indeed go to 180 deg and stay help open per the electromagnetic lock.
In short, no the Cal-Royal BB-600 swing clear hinge will not work. The reason it will not work is because, while you need to move the vertical axis of pivot, the swing clear hinge moves the veritcal axis in the wrong dimension. You need the hinge axis to move further away from the face of the door when viewing the door in the closed position from the pull side of the door. The question becomes, "how much further away" do you need to pull the hinge axis?
Regarding your wide throw hinge experiment hinges, what led you to believe an 8" wide hinge would be a solution and specifically why 8" wide?
You called in and we had a chance to discuss this and here is that conversation for your review:
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as well as a follow up conversation here:
Click Here
The issue with the wide throw hinge is this: why you feel the hinge is not wide enough, in fact it is too wide. You may believe it is not wide enough because you may be thinking the door leaf must rotate to be parallel. In fact you are swinging it too far, perhaps 60 deg too far. The door leaf needs to be perpendicular to the wall by swinging it to just 180 from fully closed.
8" is indeed too wide and the error was in determining the hinge barrell itself needed to clear the face of the jamb. In fact, because the hinge "doubles" in width when fully open, you end up needing a much narrower hinge. To determine this let us review and then run the formula for wide throw:
(DT - HB) x 2 + I + C
DT = Door thickness
HB = Hinge Backset
I = Inset
C = Clearance
The use of this formula for your application tells us:
(DT - HB) x 2 + I + C
DT = 1-3/4"
HB = 1/4" (standard for hollow metal doors)
I = 2-1/2" + .125" (2-1/2" is from your drawing as you have a double egress frame and the .125" is the tiny value I use as hollow metal doors does have an inset within is typically .096" +/- and I use .125 as a safety value)
C = 0" as there is no requirement to allow for wainscot or base board or projecting hardware trim
Your formula =
(1-3/4 - 1/4) x 2 + 2-5/8 + 0 =
simplyfing =
1-1/2 x 2 + 2-5/8 + 0 =
solving -
5-5/8"
Per the instructions for wide throw, round up to the next widest hinge which leaves us with =
6" wide
Therefore the hinge to use for your application is the Cal-Royal WTHBB-456 4.5x6in Wide Throw Hinge-Full Mortise-Standard Weight-Ball Bearing-Steel Base as seen here:
Click Here