Liquid and fluid mixture pipe junction for concrete handling - has plug with two passages passing mixture and flushing fluid simultaneously

摘要

The junction is particularly for handling quick-setting concrete mixture in underground mining work, having a housing to which an incoming mixture pipe, a flushing pipe and two outgoing pipes are connected. A rotary valve plug in the housing connects the incoming pipe to one of the outgoing ones and the flushing pipe simultaneously to the other one. The housing is in the form of a tapered stop-cock body (1) into which the incoming mixture pipe (2) and the flushing pipe (3) discharge at diametrally opposite positions, while the outgoing pipes (4, 5) are offset 90 deg. from them. It accommodates a taper plug (6) containing two through passages (7, 8) separate from each other. These connect pairs of ports (9, 10; 11, 12) offset 90 deg. from each other in the body walls, so as to pass flushing fluid and mixture simultaneously.