In this blog entry I would like to share some videos and link to a linkedin post of a video I made showing how I disabled a Dorma 75 v and Dorma BTS 80's. As can be seen in the video I show a Dorma 75 v with a Briton pin and strap freely spinning after I uncoupled it from the floor springs mechanism plus BTS 80's doing the same.
https://www.linkedin.com/posts/rod-fathers-84b1b0ba_fitters-floor-door-activity-6576321427283156992-C4rm
https://www.linkedin.com/posts/rod-fathers-84b1b0ba_fitters-floor-door-activity-6576321427283156992-C4rm
The calculation data for this conversion is as follows:
Basic dynamic load rating C 8.5 kN
Basic static load rating C0 26 kN
Fatigue load limit Pᵤ 3 kN
Basic dynamic load rating C 8.5 kN
Basic static load rating C0 26 kN
Fatigue load limit Pᵤ 3 kN
MFS has found by far our tried and tested service/solution (5 years with no problem) to be the best way of dealing with the associated problems surrounding an existing installation prior to the fitting of any over-head disabled door opener all things considered (including cost, durability, ease, down-time, is environmentally friendly and is reversible. Inquiries are most welcome through our contact page. Training and possible franchising may be available.
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