The HLS-catch has been subjected to extensive testing and these tests have show irrefutably that the HLS-catch performs perfectly (see pictures below):
To obtain a complete overview of the operation of the HLS-catch, it was necessary to install several (types of) catches on several places in the door and frame. The aim was to provide insight into the exact point at which the catch slides out based on the temperature at the location of the catch.
connected to lamps showed the exact moment at which the catch slid out.
the completion of the test shows that the bolts of the HLS-catches have slid
out and have fixated the door (see yellow arrows). Fire admission was
the double door, as represented in the drawing at the right, had token place
at TNO and was done The furnace temperature will run up to a maximum of 945
degrees Celsius for a 60-minute fire-resistant door.
The HLS-catch prevents - after sliding out - doors from bending. By installing the catch on two locations on the locking side of the door, it is possible to fixate the door over its full height. This ensures that the gap between the doors and frame is kept to a minimum to enhance resistance to fire penetration. The same details apply to single doors. In the latter instance the HLS-catch fixates the door in the frame.
Operation Application user-friendly Testing Dimensions Specifications Distribution PDF-leaflet(2011-04, 68 Kb)