How to identify the quality of waterproof casing through the wall pipe good or bad?

Waterproof casing is generally applied to the pipeline through the wall where there is vibration or tight waterproofing requirements of the structure, such as for construction, chemical, steel, water, sewage treatment and other units The environment used in the extended waterproof casing is to prevent liquid leakage or leakage into the place (such as pools, septic tanks, basements, etc.), is to add no less than 1 circle of waterproof wings on the outer wall of the casing, so that when the casing is poured in the wall body become a whole, not due to expansion and contraction factors and cracks and leakage.
 
Waterproof casing is also called through the wall, there are flexible and rigid difference between them is that the casing construction is different, suitable for installation in different geographical conditions. There are also Type A, Type B and Type C. The difference between these three types of rigid waterproof casing is the material of the connecting pipe is different, Type A for steel pipe Type B for ductile iron pipe Type C for both of the above. 1 . Different products of waterproof casing, there are different products of waterproof casing because of the different materials used, whether it is or rigid waterproof casing are 02S404, S312 and two standard waterproof casing. The choice of these three waterproof casing should be based on the construction through the wall to meet the standard requirements, 02S404 waterproof casing is a strict requirement, whether the tube thickness or flange can not be a little error, so in terms of price is also more expensive, S312 and two standard waterproof casing in the thickness of the size are more lenient but can assure you is sure to meet your requirements for the thickness of the wall pressure and vibration and expansion deformation.
2 . Waterproof casing and a better sealing performance, is a flexible closed casing. This flexible closed casing is basically the same as the flexible waterproof casing, the difference is that the sealing performance is better.
3 . A good way to test the waterproof casing is to try it out, whether it will leak; another way is to install the pipe and waterproof casing within the pressure it can withstand to apply pressure to see if it can play a role in protecting the pipe.
To create waterproof casing service, we guarantee that we will provide you with excellent product service. A price is worth a penny, this phrase seems to be familiar to everyone. Whether in the daily life of the point, or in the pipeline industry are quite practical. A good number of purchasers greedy for cheap, received the temptation of low prices, temporarily got a considerable benefit, but the quality is not guaranteed, can only be considered a consumption, not conducive to long-term development.