柔性防水套管是適用于管道穿過墻壁之處受有振動或有嚴密防水要求的構筑物的五金管件，一般生產企業是根據建筑科學研究院研制設計的S312、02S404標準圖集制造的。柔性防水套管穿墻處之墻壁，如遇非混凝土時應改用混凝土墻壁，而且必須將套管一次凝固于墻內；柔性防水套管施廣泛用于建筑、化工、鋼鐵、自來水、污水處理等單位
英文版：
Flexible waterproof casing is applied to the pipe through the wall between the subject requirement of vibration or water proof structure of metal pipe fittings, general production enterprises is based on Building Science Research Institute developed S312, 02S404 standard atlas making. Flexible waterproof casing wall at the wall, in case of a concrete to concrete walls, and must be a solidified in the casing wall; flexible waterproof casing applied widely used in construction, chemical, steel, water, sewage treatment and other units.
