The size of PVC pipe fittings and pipes shall conform to the corresponding standards and specifications; if the fit gap is too small, it is quite difficult to insert them to the specified depth due to too much resistance after the application of adhesive, especially for the pipe fittings with large caliber. PP fitting wholesaler suggested that the operator may have the following possibilities:

A. When the PVC pipe fittings are inserted in half, they can no longer be pushed in place. At this time, they can neither enter nor exit

B. Although it is not inserted in place, it can make good use of it. As a result, it is out of joint and leaking during the shallow pressure test.

C. A sledgehammer is used to pad the board and smash it forcibly. Although this method can be inserted to the specified depth, the method is improper. Especially in high temperature weather, the adhesive will solidify quickly after brushing. When the bonding surface is being solidified, it is still forced to insert with the help of external force, resulting in the decrease of bonding strength, leaving a hidden danger to the normal operation of the pipeline;

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