| 摘要 |
PROBLEM TO BE SOLVED: To provide a coupling for a piping to eliminate a need to always prepare for two kinds of a cylindrical coupling and a cylindrical coupling with a flange and eliminate time and labor required for management of parts and dissolve a problem on a part storing space. SOLUTION: This coupling for a piping comprises a cylinder body 2 provided at an end part on the piping side with a male screw part 4 for piping connection and at an end part on the plug side with a female screw part 5 for faucet connection, a through-hole 8 fitted in the end part on the plug side of the cylinder body 2, and a disc-form flange body 3 having a plurality of through-holes for a screw. A fit-in protrusion part 7 is formed on the outer periphery of the end part on the plug side of the cylinder body 2 and a fit-in recessed part 10 fitted therein to prevent the occurrence of relative rotation between the cylinder body 2 and the flange body 3 is formed in the inner periphery of the flange body 3. The fit-in protrusion part 7 is tightly fitted in the fit-in recessed part 10.
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