APPLICATION OF THE TOP-SIN HINGES
TOP-SIN stainless steel butt hinges are highly recommended for commercial applications .
When selecting hignes for doors that are heavy,solid core,fires doors or doors fitted with door closers or automatic door operators,ball bearing hinges should be used.
Heavy doors in particular place shear load stress on the top hinge and in some circumstances it is necessary to install two hings towards the top of the door to assist in alleviating this load.
TOP-SIN higne are apprived to EN 1935.
Hinge height is always the first measurement shown.
The height of th ehinge is the length of the leaf,not including the tip of the pin.
Hinge width is always the second meansurement .
The width of the hinge is measured across both leaves when the hinges is fully opened.The door thickness and door jamb width determine the width of the hinge required .
Lift off hinges allow a door to be removed by someone on the outside in the event of an emergency.
Doors require a gap between the top of the door and the underside of the head of the door frame to allow sufficient movement upwards for door release.
Loose pin hinges are capable of having the two leaves separated for ease of door installation or maintenance .
For external doors or security applications loose pin hinges should not be used .
Top-Sin fixed pin hinges feature an additional securiing feature to prevent unauthorised separation of the hinge leaves.
The hinge pin contains a recess that receives a concealed welded stud from the hinge knuckle,aiding against removal of the pin.
All hinges are supplied with stainless steel fixing screws.
Note : shor shel tapping screws supplied with all fast fix hinges are far aluminium door and frame applications and should not be used for fixing hinges to timber doors or frames application .