| 摘要 |
A loop pipe for redirecting a flowing fluid such as water 180 DEG is formed by a casting process using a mold and includes a linear intermediate portion and first and second linear end portions each disposed on a respective end of the intermediate portion and forming a continuous inner channel for passing the fluid. The loop pipe is in the form of a single piece casting formed in a mold using three elongated, linear inserts which are removable from the casting once formed to provide the casting with the aforementioned continuous inner channel for re-routing the fluid 180 DEG . The two end portions of the loop pipe are provided with connecting arrangements such as threads or barbs and the casting is adapted to receive a threaded plug to close the aperture through which the middle insert forming the linear intermediate portion of the loop pipe is removed from the casting. The loop pipe may be cast from plastic or any of the more commonly used metals such as iron, aluminum or zinc.
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