DI MJ Long Collar or Ductile Iron Mechanical Joint Collar, refers to a type of fitting used in piping systems. It is a component designed to join two plain (spigot) ends of ductile iron pipes in a mechanical joint connection.
Where and How it is Used:
Ductile Iron Mechanical Joint Long Collar are widely used in water supply networks, sewage systems, and industrial piping projects where there is a need to connect two plain (spigot) ends of ductile iron pipes in a secure and leak-proof manner. The mechanical joint connection ensures a tight and reliable fit between the two pipes, eliminating the need for welding or other complex joining methods.
Benefits:
Overall, Ductile Iron Mechanical Joint Long Collar pipe provide a practical and efficient solution for joining plain (spigot) ends of ductile iron pipes in a mechanical joint connection. Their benefits in terms of secure connection, easy installation, versatility, dismantling capabilities, strength, corrosion resistance, and cost-effectiveness make them a preferred choice for various applications in water supply, sewage systems, and industrial processes.

| Nominal Dia (DN) | e | d | L | Wt. | L | Main Fitting | Total Set Wt. |
|---|---|---|---|---|---|---|---|
| 80 | 7.0 | 109 | 160 | 9 | 160 | 9 | 15 |
| 100 | 7.2 | 130 | 160 | 11 | 160 | 11 | 18 |
| 125 | 7.5 | 156 | 165 | 17 | 165 | 17 | 25 |
| 150 | 7.8 | 183 | 165 | 18 | 165 | 18 | 28 |
| 200 | 8.4 | 235 | 170 | 23 | 170 | 23 | 36 |
| 250 | 9.0 | 288 | 175 | 32 | 175 | 32 | 48 |
| 300 | 9.6 | 340 | 180 | 40 | 180 | 40 | 63 |
| 350 | 10.2 | 393 | 185 | 55 | 185 | 55 | 88 |
| 400 | 10.8 | 445 | 190 | 70 | 190 | 70 | 108 |
| 450 | 11.4 | 498 | 195 | 82 | 195 | 82 | 125 |
| 500 | 12.0 | 550 | 200 | 94 | 200 | 94 | 146 |
| 600 | 13.2 | 655 | 210 | 120 | 210 | 120 | 188 |
| 700 | 14.4 | 760 | 220 | 178 | 220 | 178 | 278 |
| 750 | 15.0 | 810 | 225 | 198 | 225 | 198 | 329 |
| 800 | 15.6 | 865 | 230 | 225 | 230 | 225 | 370 |
| 900 | 16.8 | 970 | 240 | 272 | 240 | 272 | 456 |
| 1000 | 18.0 | 1075 | 250 | 343 | 250 | 343 | 559 |