Branch junction and cut-off valve, for a mains cold water supply pipe, has a one-piece injection molded valve housing which can be combined with other housings in a versatile configuration

摘要

The branch junction and cut-off valve assembly, at a mains cold water supply pipe, has a valve housing (11), pipe (12) and valve seats (25,44) integrated into a one-piece injection molded plastics housing. A let-off channel (41) leads out of the valve zone (13), into a let-off valve zone (42), linked to an external let-off channel (47). The end side of the valve housing has sealing surfaces to take a sealing gasket, structured to take the ties which clamp a number of valve housings. The ties are two tie rods, through two channels (27.1,27.2 in the housing wall (29), diagonally opposed to the main channel axis. The main cut-off valve (65) has a bellows (66), clamped in a sealed fit in the housing with the holder (21) for the threaded valve spindle (22), with a pressure plate (73) at the closure with spindle support. The valve housing can be fitted with additional symmetrical valve housings mounted vertically upwards and vertically downwards.