What are the sealing requirements of flexible waterproof casing?

When the pipeline through the wall, some will produce vibration, or when the internal pipeline will produce some structural changes, it is necessary to use flexible waterproof casing, in order to meet the requirements of the sealing aspect when using, need to pay attention to some key use methods, thus combining the current overall situation, it is necessary to be able to meet the requirements of this sealing method, which is currently suitable for people to use a good line of pipes, then In use, the requirements for sealing aspects will be more stringent.
 
Flexible waterproof casing is used in underground engineering, chemical industry, steel, construction, chemical industry, just iron, water, sewage treatment and other units. Flexible sealed casing is designed and manufactured to solve the problem of some underground projects that need to pass through walls with strict waterproofing requirements; and some buildings that need to pass through walls while restricting the pipeline from expansion and displacement due to temperature changes or external forces, not to mention vibration due to external factors. Its casing is poured on the wall at one time, the pipe passes through the middle of the casing, and the outer diameter of the pipe and the middle of the casing are sealed with fillers to play the role of waterproofing and vibration reduction. When using flexible waterproof casing, the requirements of the internal sealing including the requirements of the filling material is still relatively strict, generally now the materials used are asphalt hemp wire, some people will also use polystyrene sheet, in the case of relatively low cost, direct use of polyvinyl chloride foam sheet is also better, so that the filling material can achieve a better sealing effect.
 
Of course, when using flexible waterproof casing for welding, it needs to be set according to the sealing conditions. The welding requirements currently in use are in full compliance with national standards, such as the basic shape and size, in full compliance with national standards. Therefore, these aspects are the key issues that should be paid attention to when using and should be paid attention to during normal operation.
 
The requirements for sealing aspects should also be paid attention to the use of concrete, and it is good to be used together with the construction aspects so that better advantages can be achieved in terms of sealing, because when using this equipment, there should be strict sealing control.