5 Precautions waterproof casing installation Note: When positive side of corrosive media, we can use blocking material will block casing wall at the gap in case of non-concrete walls, you should use the local concrete walls, its casting range should be fly ring diameter (D5) Large 200, the casing must be fixed in the wall once poured. Wear a tube wall thickness at the concrete should not be less than 300, you should use thicker or both side walls thickened. Thickened portion of the diameter of at least D5 +200. Casing weight to L = 300 calculations, such as wall thickness greater than 300, it should be calculated separately 6 Category Description commonly waterproof casing into both rigid and flexible. Selection should pay attention: waterproof casing is developed based on the design of Building Research S312, 02S404 standard atlas made. Rigid waterproof casing waterproof casing suitable for potable water tank installation, fill in the asbestos cement after they have finished playing for, caulking sealant, should ensure that the contact surface of each seam no rust, patent leather, dirt, and clean and dry. Generally applicable to the pipe through the wall or place subject to vibration requirements of strict water structures; through the wall at the wall, in case of non-concrete should switch to concrete walls, and must be solidified in a casing wall; Waterproof Case with tube used in construction, chemical, steel, water, sewage treatment and other units. Waterproof casing Category: flexible waterproof casing, rigid waterproof casing, steel flexible waterproof casing, sealed on both sides of the rigid protective casing, 04FS02 flexible airtight casing, elongated flexible waterproof jacket, waterproof stainless steel casing.