FIRE-RESISTANT PIPE COUPLING

摘要

The present invention relates to fire-resistant pipe couplings (100) for connecting together two plain-ended pipes in a fluid-tight manner. The pipe coupling (100) comprises: a tubular casing comprising: an outer tubular casing (102); and an inner tubular casing (104), fitting entirely inside the outer casing (102); a tubular sealing gasket (106) disposed within the inner tubular casing (104); and means (116) for tensioning the casing around the gasket (106). The casing further comprises: at least one layer of fire-resistant material (124) disposed between the inner (104) and outer (102) casings; and at least one layer of thermally-insulating material (128) disposed between the tubular sealing gasket (106) and the inner casing (104), whereby the outer casing (102) and tubular sealing gasket (106) are thermally insulated from one another.