Water return system without return pipe

Abstract

The present invention provides a water return system without a water return pipe. The system mainly connects a circulation motor, a solenoid valve and the end of a cold water pipe at the end of a hot water pipe. The circulation motor is installed at the end of the hot water pipe and the existing cold water pipe is directly used for water return operation. The system only needs to be constructed and installed near the end of the hot water pipe and the end of the cold water pipe. The system is easy to plan and install without changing the building structure or the decoration. The present invention does not need to use a check valve, but only needs a solenoid valve to close and separate the cold water pipe and the hot water pipe during normal time when the water return operation is not started, so as to avoid turning on the cold water to discharge hot water or turning on the hot water to discharge cold water, thereby making the present invention convenient and practical.

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