 |
|
|
 |
| Manufacturer of PE manholes. HDPE manholes easy to install. Sewer manholes, absorbing manholes, moulded base manholes manufactured by a ISO 9002 certified company |
|
|
Manholes | Specifications
for the contract
|
MOULDED BOTTOM MANHOLE
Supply of a polyethylene manhole composed of a PEMD circular section moulded base. The base, available in 630 / 800 mm or
1000 /1200 mm diameter, is made by rotomolding and is provided with internal ducts, three membranes and one outlet, specially pre-arranged to receive PEAD corrugated pipes with OD (160-200-250-315-400-500 mm) by means of special seals that prevent
pipe displacement and ensure the system watertightness. In its upper section, the base should be provided with a truncated
cone system to receive a coupling extension represented by a PEAD corrugated pipe with OD (630 / 800 or 1000 / 1200 mm) ...
mm long, with stiffness class SN 8 kN/m2. The 1000 / 1200 mm manhole end part includes a PEMD conical reducer, made by
rotomoldig, installed onto the 1000 / 1200 mm coupling extension and used to taper the manhole up to OD 600 mm for the crawl
space; the conical reducer must be reduced to 200 mm. The manhole must be manufactured by a ISO 9002-certified company.
MANHOLE DRAWN FROM PIPE
Supply of a high-density polyethylene manhole made from suitably cut and welded twin-layer corrugated pipes class SN 8 KN/M2
with a .... mm outer diameter and .... mm height. The through pipe will be a PEAD corrugated pipe class SN 4 (or SN 8) KN/M2
with a outer diameter of.... mm.
The 1000 / 1200 mm manhole end part includes a PEMD conical reducer, made by rotomouldig, installed onto the 1000 / 1200 mm
vertical coupling extension and used to taper the manhole up to ND 600 mm for the crawl space; the conical reducer must be
reduced to 200 mm.
The manhole must be manufactured by a ISO 9002-certified company.
|
back
to Manholes