Branch tap for water or gas pipe - has service tube with spiral grooves to receive projecting lugs on valve spindle

摘要

The tap consists of a body (3) with an inlet (4) situated perpendicular to the pipe (1) to which it is attached, a service tube (5), and an outlet (6) at right angles. The inlet is of smaller diameter than the service tube, and the latter has a threaded outer surface for a valve cap (15). The inner surface of the service tube has two symmetrical spiral grooves (8), and the valve (9) has a spindle (10) with a sealing washer (11) to engage with the seat (7) of the tap. The spindle has projecting lugs to interact with the spiral grooves (8), which extend from the free end of the service tube to the edge of the outlet. USE/ADVANTAGE - Branch tap for water or gas pipe with rapid and reliable closure of inlet.