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What kind of problems will be encountered in the later period of Luoying pipeline's flexible waterproof casing

Time: 04-28 󰃯 Reading times: 806 󰃳 Editor in charge: The sea 󰃗 Column: product focus

Introduction: The specification of flexible waterproof casing should conform to the relative technical standard; if the clearance of the fit is very small, it is very difficult to insert it to the required depth because of the great resistance after applying the adhesive. Especially for the pipe with larger diameter, sometimes it can not be pushed in place after half insertion

flexibility Waterproof casing If the clearance is very small, it is very difficult to insert into the required depth because of the great resistance after applying the adhesive. Especially for the pipe with larger diameter, sometimes it will not be pushed in place after half insertion. At this time, it is not timely to advance or retreat. In this case, the operator may have the following several types Can:
1. Although it was not inserted in time, it was used flexibly. As a result, the water seepage was disjointed during the pressure test due to the shallow insertion depth.
2. Smash the plank with a sledge hammer. Although this kind of method can be inserted into the required depth, it is not appropriate. Especially in hot weather, the adhesive can dry quickly after being painted, and it is forced to insert by external force when the bonding surface is dry and solid, which leads to the reduction of bonding compressive strength and hidden danger to the normal operation of pipeline.
  3、 Flexible waterproof casing It is unscientific to use adhesive to make up the gap if the gap is too large.
An experienced construction personnel should try to insert the flexible waterproof casing and pipe fittings before bonding. Under normal conditions, when the required depth is 1 / 2-1 / 3, the matching clearance is ideal. The suitable fit clearance of flexible waterproof casing and pipe fittings is the premise to ensure the bonding effect.
The function of flexible embedded casing is waterproof, leak proof and anti settlement. The rubber sealing ring inside plays a key role. The seal ring cancels the moving ring seal ring, which greatly reduces the vibration of the moving ring caused by the pump body vibration or shaft vibration through the transmission of the moving ring seal ring, so that the moving ring is free from great influence, which is usually called the floating property of the seal.
Flexible embedded waterproof casing seal ring cancels the influence of moving ring seal ring in ordinary seal, and the applicable medium and temperature are greatly expanded. Generally, the material of moving ring seal ring for general sealing is mainly made of organic compounds such as polytetrafluoroethylene rubber. These organic compounds will react with the whole body of the medium in some media, which will change at low temperature and high temperature The sealing is not limited by the above factors. It is usually suitable for benzene, ketone, olefin, alkane, general oil, acid, alkali salt and other media, and the temperature range can be from - 250 to 400. Of course, this also requires strict material selection, welding and thermal repair for the waterproof sleeve pipe.