The intend of the telescopic manhole is to achieve high performance in plumbing, electrical and telecommunications systems. Advantages of the manholes are: easy access, quick installation, easy adjustable height, input from all sides, protection from freezing.
Telescopic manhole is consisted from
Telescopic base
Telescopic extension-circle
Telescopic extension-square
Telescopic extensions can be used for extending the telescopic base and every Interhol cover. It ends with circle 600mm and square 600×600 mm.
| Element | OD | H | h | h1 |
|---|---|---|---|---|
| Telescopic manhole | 610 | 1100 | 600 | 500 |
| Element | OD | H | id1 | id2 |
|---|---|---|---|---|
| Telescopic base | 630 | 600 | 250 | 35 |
| Element | OD | H | L1 | L2 | id1 | id2 |
|---|---|---|---|---|---|---|
| Telescopic extension circle | 610 | 600 | 510 | 660 | 250 | 35 |
| Element | OD | H | L1 | L2 | id1 | id2 |
|---|---|---|---|---|---|---|
| Telescopic extension square | 610 | 600 | 500 | 650 | 250 | 35 |
