Viking Johnson - England
MaxiFit (universal pipe couplings) have a wide range of couplings designed to connect pipes of the same nominal width, but different outer diameter and materials (e.q. connection of asbestos-cement and steel pipes, or cast-iron or PVC pipes), as well as connecting the pipes made of same material. That is why they are known as transition couplings, because they allow a transition from one material type to another. They can also connect pipes of the same outer diameter to each other.
MaxiFit (Multifit) pipe coupling consists of the body, two end rings (clamping flanges), rubber gasket and (two) clamping screws. End ring and adaptor body are made out of ductile cast iron (DCI) GGG 45 in accordance with EN-GJS-450-10 standards. The coupling is coated with the organic coating based on Rilsan Nylon (Nylon 11), which is WRAS approved for use with potable water. Bolts and nuts are protected by Silver Sheraplex and can be stainless steel or coated with Teflon optionally.
The minimum and maximum range of MAXFIT pipe couplings and maxiadaptor-flange adaptors
| | Pipe couplings range |
|---|
| DN | Min. | Max. |
|---|
| 50 | 57 | 74 |
| 65 | 63 | 85 |
| 80 | 85 | 107 |
| 100 | 107 | 132 |
| 125 | 132 | 158 |
| 150 | 158 | 184 |
| 175 | 189 | 212 |
| 200 | 218 | 244 |
| 225 | 243 | 269 |
| 250 | 266 | 295 |
| 300 | 315 | 349 |
| 350 | 351 | 368 |
| 350 | 374.5 | 391.5 |
| 400 | 404.8 | 421.8 |
| 400 | 418.2 | 435.2 |
| 400 | 425 | 442 |
| 400 | 434.5 | 451.5 |
| 450 | 447 | 464 |