DRAIN VALVE FOR BATHTUB AND BATHTUB

摘要

PROBLEM TO BE SOLVED: To reduce the size and space of a drain valve where a connecting part for communicating the inside of a bathtub and a circulation path for addi tional boiling in the bathtub with an additionally boiling function. SOLUTION: This drain valve is formed with a metallic cap 2 to be fitted to the bottom surface 1a of the bathtub 1 and a cap 3 to be fitted to this metallic cap 2. The connecting part 4a for communicating the inside of the bathtub 1 and the circulation path 5 for additional boiling is formed at the metallic cap 2. The cap 3 is hollowed to communicate the inside of the bathtub 1 and the path 5 through the cap 3 at the time of additional boiling. A scupper 3b of bathtub water is formed at the bottom surface of the cap 3. The metallic cap 2 is provided with a water stop valve 7 for plugging the cap 3 at the time of mounting this scupper 3b.