Renewal Manholes

New Zealand’s aged infrastructure is a looming topic. Asset owners are presented with significant challenges when wastewater and stormwater manhole chambers are no longer suitable for continued use, through general degradation, Hydrogen Sulphide attack, groundwater ingress, or stormwater erosion.

ROMOLD manhole chambers present a strong solution for renewal requirements.

Being prefabricated and lightweight, ROMOLD manhole chambers provide a significant benefit when the need comes for rapid replacements. The material advantages also ensures that the replacement asset will there on see a much longer service life.

Our renewal manhole chambers are constructed in New Zealand to meet the specific needs of the application. This can start with 3D scanning of the existing chamber, a process that Australasia Moulding Ltd can manage, and culminate in a solution that is simple and efficient for local contractors to install.

ROMOLD Manhole Chambers for Polyethylene Pipelines

Features

Full polymer manhole chamber providing immunity to hydrogen sulphide corrosion
New Zealand fabricated solution to match the specific needs of the application
Design support services from Australasia Moulding Ltd including 3D scanning of existing services
Significantly faster to install and can allow service to resume straight away
Modular construction (fully welded chambers are available)
Includes PP ladders in riser and cone as standard
Height adjustable to the nearest cm
Approved for HN-HO-72 traffic loading

Specifications

Material: Polyethylene base with polypropylene riser and cone
Seals: EPDM
Ladder: Glass-filled polypropylene
Diameter : DN1000 or DN625
Throat: 600mm clear opening
Pipe sizes: up to OD500 at outlet
Maximum depth: 5m
Maximum groundwater: 4m
Traffic loading: Class D (HN-HO-72)
Chamber weight: Approximately 115kg for a 2m deep manhole (plus concrete LDR and DI cover)