Flexible waterproof casing is mainly suitable for pipeline through the wall of structures by vibration or tight waterproof requirements of hardware fitting, general manufacturing enterprise is developed according to the construction science research institute design S312, 02 s404 standard atlases. Flexible waterproof casing wall in the wall, in case of the concrete should be switched to the concrete wall, and the casing must be a set in the wall, the casting range should be colorful ring diameter (D5) 200, casing must be fixed in the wall at a time. Flexible waterproof casing is widely used in construction, chemical, steel, water, sewage treatment etc.
Generally when doing the pool to use casing, it is the channel to sink pipe. But ordinary casing is difficult to seal, thus there will be leakage between casing and pipeline, between casing and the wall is also easy to leak. Only use waterproof casing to solve the leaking between the casing and wall can't solve the problem that casing and pipeline sealing, flexible waterproof casing can solve the two problems.
The materials and standards of installing flexible waterproof casing are:
1, when the meet the water is corrosive medium, waterproof casing seal and seal material and seal cream all need medium corrosion resistant materials such as four fluorine rubber lining, avoid the influence on contact surface corrosion medium.
2, usually a flexible waterproof casing packing materials for asphalt flax, polystyrene board, PVC foam plastic board.
3, sealant adopts polysulfide sealant and polyurethane sealant.
4, welding structure size tolerance and form tolerance according to JB/T5000.3-1998.Using manual arc welding, welding E4303 electrode type, brand J422.Get basic shape of weld groove size in accordance with the GB985-88.
5, flexible waterproof casing, casing with L = 300 the weight of the calculation, such as wall thickness is more than 300, should be calculated separately.
