The efforts of the bolt tightening in the performance of flange joints
| Pressure PN, Bar | Flange / pipe diameter, mm | Efforts Nm |
| 6/10/16 | 100/110 | 40 |
| 6/10/16 | 125/140 | 40 |
| 6/10/16 | 150/160 | 80 |
| 6/10/16 | 200/200 (225) | 80 |
| 6/10/16 | 250/250 | 120 |
| 6/10/16 | 300/315 | 120 |
Flanged joints of PVC pipe
Repair Coupling
Repair sleeve is used to repair the connection and pressure and nonpressure PVC pipes.
Installation of the coupling (Fig. 5, 6):
– Cut the repair and repair pipe so that the distance between them was less than 50 mm;
– Fasten the coupling to the docking tube ends so that the center of coupling was at the junction of pipes, note the position of coupling on the pipes ;
– Lubricate the ends of the tubes and rubber rings in repair coupling;
– Push the coupling fully in one of the pipes;
– To combine and move the pipe coupling on the other tube on the marks.
 Fig. 5 Installation at saved bell |
 Fig. 6 Repair by insertion |
See also: