DN114 waterproof casing 02s404 flexible waterproof casing rigid waterproof casing

Ordinary casing is difficult to seal, and there will be water leakage between the casing and the pipe, and it is also easy to leak between the casing and the wall. The waterproof casing only solves the leakage between the casing and the wall, but cannot solve the seal between the casing and the pipe. The flexible waterproof casing can solve both problems. Casings can be divided into ordinary casings which are 1.5cm thicker than the pipes to be used and are fixed in the wall or board through which the pipes pass. Flexible casing is a flexible material used to seal the space between the casing and the pipe. Rigid casing means that the space between the casing and the pipe is sealed with rigid materials to achieve a sealing effect. Waterproof casing is a place where the environment where the casing is used is to prevent liquid from leaking or leaking in (such as a pool, septic tank, basement, etc.). A waterproof wing ring of no less than 1 circle is added to the outer wall of the casing, so that the casing is poured into the wall. When it becomes a whole, it will not crack or leak due to expansion and contraction. It can be divided into national standard and non-standard according to the standard atlas. The national standard waterproof casing refers to the selection of materials and materials in complete accordance with the relevant Ministry of Construction or standard atlas In production, there are strict requirements for flange thickness, wing ring thickness, pipe diameter and thickness. Non-standard means that when the shape and general structure comply with the standard atlas, the flange thickness, wing ring thickness, pipe diameter and thickness are considered when selecting materials. Relaxation of requirements. Strictly speaking, these are unqualified products. Of course, relaxation of standards to a certain extent will not affect use, but excessive relaxation of standards will affect performance. According to the atlas, it can be divided into flexible waterproof casings. and type flexible waterproof casing. Both are different in appearance, size and structure. The rigid waterproof casing is a steel pipe plus a wing ring (a ring made of steel plates is installed on the steel pipe and installed in the wall (mostly concrete walls are used for general pipe penetration). Wall, in addition to the external wing ring, the flexible waterproof casing that is beneficial to the wall also has retaining rings inside, and the inner wire of the flange is sold in complete sets, or can be processed by yourself, and is used for pipelines that require shock absorption. For example, when the pipe connected to the water pump passes through the wall. The main reason is that the place of use is different. Flexible waterproof casing is mainly used in civil defense walls, pools and other places with high requirements. Rigid waterproof casing is generally used in basements and other places where pipes need to pass through. Location. When the pipeline entering the home from underground passes through the exterior wall of the building, a rigid waterproof casing wall (pool plate, etc.) casing must be installed. It is divided into two types: rigid and flexible. After installation, deformation is allowed and flexibility is not allowed. Rigidity with deformation In actual engineering, many people often ignore the importance of casing. It is often wrong to use what type of casing in which place, which brings great inconvenience to future installation and use. Therefore, every Every engineering personnel must master the relevant content of waterproof casing