METHOD FOR PREVENTING INTERNAL PRESSURE RISE AND ITS DEVICE IN MIXTURE WATER PLUG OF HOT WATER AND COLD WATER

摘要

PURPOSE:To prevent rise of internal pressure due to heating in a water supply room by releasing water little by little to a flowing room from a variable relief groove provided on a variable still water face around the flowing room. CONSTITUTION:When a lever handle 24 is turned to the H direction, a flowing room 18 of a movable valve sheet 20 is communicated only to a hot water valve port 14 of a fixed valve sheet 17 to supply hot water. This time, if hot water supply is continued, the flowing room 18 and a water valve port 15 are communicated by a variable relief groove 19 provided on the movable valve sheet 20 and a still water face 21 of the fixed valve sheet 17. The water heated by hot water and begun to expand in a water supply room 5 is discharged from the relief groove 19 into the flowing room, and internal pressure rise in the water supply room 5 due to connecting hot water supply can be prevented.