Matters needing attention in the use of Rubber Rings :

1. Before installation, check the quality of the pipe fittings and rubber sealing ring, clean the dirt on the socket and the socket, and then install the rubber ring in the socket groove without twisting. The special-shaped rubber ring should be installed correctly and not reversed.

2. The insertion length of the pipe end should allow for the expansion and contraction caused by the temperature difference, and its value should be calculated and determined according to the closed temperature difference during construction.

3. After the insertion depth is determined, the insertion depth marking line should be drawn at the pipe end.

4. Apply lubricant on the rubber ring and the insertion part of the socket. Lubricant must be non-toxic, odorless, and will not breed bacteria like soap or detergent. It is strictly forbidden to use butter, without any damage to the waterproof casing and rubber ring (one oil and other oils are used as lubricants).

5. Insert the socket into the socket, align the axis, and use a special tension tool such as a wire tensioner to insert it into the target evenly at one time. When insertion is difficult, check that the rubber ring is in place.

6. Use a feeler gauge to check the correct position of the rubber ring along the pipe circumference along the interface gap.