The QWR Fire Collars consist of a continuous pressed stainless steel flexible shell containing high performance graphite based intumescent material which reacts under the influence of heat to exert pressure on the pipe as it softens to form a carbonaceous char which provides an effective insulation plug thus preventing fire passing through to the adjoining compartment. The QWR Fire Collar has built in fixing lugs which are used to secure it to the structure.
Pipe Size (mm): 90Ø
Approx. space needed around pipe to fit QWR incl. fixing lugs (mm): 50
Recommended hole diameter (mm): 92Ø
QWR length (mm): 50