1. Clean carefully the external surface of the pipe (do not use oil or grease). The pipe must be chamfer 15 before  installed.

2. Clean carefully the socket seat in the fitting.

3. Introduce  the  sealing  ring  into  its  specific  seat.

4. Mark  on  the  outside  of  the  pipe  the  depth  to  beinserted into the socket of the fitting according to the lengths  in  the  following  standard.

5. Use  lubricated material of  Tienphong  lubricate    the internal surface of the rubber ring in the same way as the pipe.

6. Scan lubricant on the outer surface of the tube