Corrugated metal expansion joints only look at the price is not possible, but also look at these asp

The stripping length of the corrugated metal expansion joint is the same as the outside diameter of the pipe size, which has a greater impact on the quality of prefabricated corrugated metal expansion joint accessories, strictly according to the size and order of stripping provided in the manual, otherwise it is difficult to ensure the electrical strength of the corrugated metal expansion joint installation is not in place; if the corrugated metal expansion joint crimping is not good, it will make the connection tube or terminal elongation, affecting the corrugated metal expansion joint and the corrugated metal The size of the expansion joint with the metal corrugated expansion joint.
 
In the absence of detachable connectors, if the metal corrugated expansion joint crimp when the crimp part deformation is too large, will cause the tip of the discharge. Therefore, when the corrugated metal expansion joint, should choose a reasonable compression mold. Crimp parts and crimp sequence crimp according to the process requirements, our national standard recommends the use of the surrounding pressure, so that the deformation is small, no large. For corrugated metal expansion joints, corrugated metal expansion joints should pay attention to make the three terminals of the flat part of the direction to facilitate the connection with equipment and other connectors. After crimping to remove the flying edge burr, remove the metal powder, if necessary in the crimped parts can be wrapped around a layer of semi-conductive tape to uniform electric field. Cleaning for all metal corrugated expansion joint accessories installation is an essential step, due to the size of the metal corrugated expansion joint is relatively compact, if the conductive impurities are introduced into the sealing surface between the metal corrugated expansion joint and the pipe, it will lead to metal corrugated expansion joint accessories breakdown damage, required in the 60mm long metal corrugated expansion joint and equipment casing between the sealing surface can be tolerated, it can be said that a little impurities are likely to lead to sealing surface flash or breakdown.
 
The installed cleaning agent should be cleaned metal corrugated expansion joint pipe and semi-conductive layer, as well as rubber metal corrugated expansion joints and other non-damaging effect, and does not contain water, easy to evaporate, easy to dissolve oil. The cleaning cloth which wiped the semi-conducting layer in the cleaning should not be used to scrub the pipe again. Apply lubricant is mainly to facilitate the set of metal corrugated expansion joints and improve the electrical strength of the sealing surface, if improperly applied may lead to the destruction of metal corrugated expansion joints and metal corrugated expansion joints.