Flexible waterproof sleeve (lengthened wing ring) is usually used when making a pool. It is the passage from the pipe to the pool. The elongated wing ring is a kind of hardware pipe fittings which is suitable for the structures with vibration or strict waterproof requirements when the pipeline passes through the wall. The general production enterprises are made according to the S312, 02S404 standard atlas developed by the Academy of Architectural Sciences.
Flexible waterproof sleeve (lengthened wing ring) should be used in the wall where it passes through. If it is not concrete, concrete wall should be used. Flexible waterproof sleeve (lengthened wing ring) must be solidified in the wall once. Flexible waterproof sleeve (lengthened wing ring) is widely used in construction, chemical industry, steel, tap water, sewage treatment and other units. Rigid waterproof bushing expansion joint expansion joint flexible waterproof sleeve connection and corrosion prevention.
But ordinary casing is difficult to seal, so there will be leakage between flexible waterproof sleeve (extended wing ring) and pipe, flexible waterproof sleeve (extended wing ring) and the wall is also easy to leak. Only waterproof sleeve can solve the leakage between the sleeve and the wall, and can not solve the sealing between the sleeve and the pipe. Flexible waterproof sleeve (extended wing ring) can solve two problems. The characteristics of waterproofing bushing: the common waterproof bushing is divided into two kinds: rigid and flexible.
Rigid waterproof sleeve is suitable for installation of waterproof sleeve in drinking water pool. After filling with asbestos cement, when filling with sealing paste, it should ensure no rust, dirt, paint skin, clean and dry in the contact surface of the joint. Flexible waterproof sleeve is generally suitable for the pipeline through the wall where there is vibration or tight waterproof requirements of the structure; through the wall.
Flexible filler materials include linen, leaching, polystyrene board, PVC foam plastic board. The sealing paste is a polysulfide sealing paste, and the polyamine grease is applied to the paste. If the casing runs through a non-concrete wall, the concrete wall should be replaced locally. The casting range should be 200 larger than the diameter of the wing ring, and the casing must be poured into the wall once. The thickness of the concrete wall should be less than 300 at the perforation, otherwise the wall should be thickened on one side or both sides, and the diameter of the thickened part should be at least D5+200. The weight of the flexible waterproof bushing should be calculated separately in terms of L=300, such as wall thickness greater than 300.