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Precast circular type manholes are
widely used for drainage and Sewerage purposes
Manhole elements are produced in accordance with
ASTM C 478 standards. Manholes and elements sizes
are detailed as follows :
| Inner
Dia |
Wall
Thickness |
Base
Height |
Ring
Height |
| 900mm |
140mm |
900 1200mm |
300, 600, 900 mm |
| 1000mm |
90/150/200mm |
900 1200mm |
300, 600, 900 mm |
| 1200mm |
140/150/180/200mm |
900 1500mm |
300, 600, 900, 1200mm |
| 1500mm |
200/250mm |
1200 1500mm |
300, 600, 900, 1200mm |
| 1800mm |
200/250mm |
1200 1800mm |
600, 900, 1200, 1500mm |
| 2000mm |
200/250mm |
1200 1800mm |
600, 900, 1200, 1500mm |
The Manhole depth can be adjusted
using various manhole elements according to the
site requirements. The manholes are installed
with galvanized steel steps @30 cm c.c. and externally
coated with bitumen emulsion. Joints of the elements
shall be made using mortar or sealant at the site.
PVC coated aluminum steps shall also be provided
upon the request of customer. We also produce
various types of inspection chambers, catch basins
and square type manholes.
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