| 摘要 |
A pipe surge restrainer between a pipe hanger and a liquid carrying pipe resists upward surging movement of the pipe when the liquid pressure changes. One form of the restrainer is initially a flat strap having two legs, two transverse arms spaced from the legs but connected to the legs at one end by bridges, and a connecting wall remote from the arms and located between the two legs. The strap is bent into a generally U-shape with the legs and arms extending vertically upright and parallel and linked by the integral wall. The arms are bent into opposing rod receiving shapes and the bridges are bent toward each other to bring the arms closer together to form a clip. The restrainer legs are positioned within the space between the pipe and a yoke of the hanger with the clip engaging the hanging rod or swivel nut above the yoke, the connecting wall near the pipe, and the upper edge of the legs directly adjacent the yoke, thereby providing a spacer which retains the pipe in position. In another form, the restrainer is initially a flat strap having two elongated sides, two concave curved ends, and an aperture located intermediate the two ends. The strap is bent into a generally truncated triangular shape having one flat apex formed about the aperture, and two other apexes which are formed from the concave curved ends and linked by an integral tab on one curved end. The restrainer is positioned within the space between the pipe and a yoke of the hanger with the concave curved ends engaging the liquid carrying pipe and the apertured apex directly adjacent the yoke.
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