IS 3614-1 Inspection of Fire Doors

Product Description

Hinged Type Doors  

a) The door shall, preferably, be in one leaf, but may be in two leaves. A door or leaf shall not be subdivided into parts hinged together. If the door is in two leaves they shall be so constructed that a rebated joint not less than 25 mm wide is formed at the meeting edges when the door is closed.  

b) A strip of iron or steel plate not less than 3 75 mm in section shall be fixed by screws to each side of the door along the bottom edge and project 3 mm below it and a similar strip fixed in the same manner, shall be carried therefrom for 750 mm up each face of each leaf Hush with the closing edges.  

c) Substantial strap hinges, extending not less than two third the width of the door or leaf shall be provided for attaching the door, or each leaf, to the frame or wall. If tie door is more than 2, 10 m in height, three hinges shall be provided for, fixing at intervals not exceeding 900 mm.  

d) The door shall have bolts at the top and bottom (or if in two leaves there shall be a bolt at the top and bottom of each leaf and there shall also be a central bolt or latch).  

e) The bolts and latches shall be so arranged that the door can be opened from either side. The top and bottom bolt shall fasten into or engage the frame or sockets for a depth of at least 6 mm or if there is no frame, then into iron or steel sockets which will be securely fixed in head and sill of the opening. The central bolt or latch shall fasten into engage for a depth of at least 12 mm the frame or a clip. 

Sliding Type Doors  

 a) The door shall be in one leaf and shall be designed to overlap the opening at least 75 mm at the top and sides.  

b) Hangers and supporting rail the door shall be hung from the top by steel hangers of substantial design, extending at least 400 mm down the door, unless designed with a double strap, ill which case they need not extend more than 300 mm. Hangers shall be bolted through the door, if the door exceeds 1*5 m in width, not less than three hangers shall be fitted. The grooved wheels and pins shall be of steel. Low friction wheels shall be used. 

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