The solution is simple: Water manhole in HDPE. It is a 100% leakage free material and all joints and transitions are fused completely tight. The basin has a fully fused bottom plate and all pipe connections are mounted on valve junctions and pushed out through the basin wall, to then be fused both on the inside and outside. If you want to make changes after installation, it is entirely possible to fuse in pipes or make other changes, without affecting the quality to any extent. That makes PE a very flexible choice. All our manholes are drawn and calculated in our own design department.
According to the Norwegian Water Industry, new VA projects must last for at least 100 years. This requires that the water basins also have a lifespan of 100 years, which the HDPE manholes have. When the basin is to be disposed of, the HDPE material can be recycled. This makes our water basins a highly sustainable solution.
All our manholes meet all the requirements specified in VA Miljøblad 112. It states, among other things, that it must be possible to change parts, install shut-off valves for wiring lines and drains. Arrangements have been made to remove flushing water and drain lines, install an air valve, install a fire valve and carry out disinfection. In our manholes, it is also possible to take water samples, measure pressure, install any connection lines and insert a cleaning plug.
It is at our workshop in Skien that the water manholes are produced. The workshop has modern and efficient equipment, with skilled and solution-oriented professionals. Any water basin is tailored to the specific project.
"As a rule, we receive specifications from the contractor and create construction drawings based on these", explains workshop foreman Kristoffer Rønning. "The manholes often have a diameter of between 1200 and 3000 mm, while the height varies from 1.5 to 3-4 metres. Everything is possible!"
Read more: Tailoring and special design
Where the manhole is to be located under a busy road, it must withstand heavy surface loads.
"Many people regard plastic as a soft material, so we often get questions about whether the HDPE manhole can withstand traffic loads", says Rønning. "We have therefore carried out tests to obtain documentation on exactly this. The tests showed that the HDPE manholes can withstand traffic loads well.
Despite tailoring, Bluegreen has a short delivery time for the manholes:
"We usually have 2-4 weeks delivery time on our tailor made water manholes.That is very good in today's market", says Rønning.
PE water manholes are particularly suitable for coastal areas, wetlands, groundwater areas and all places where high groundwater levels are a problem.
100% tight
100 year lifespan
User friendly service and maintenance
Flexible
Diameter 1200 - 3000 mm
Height 1500 - 4000 mm
Tested and approved for pipe size DN 400 (VA- Miljøblad 112)
Console and fittings installed inside the workshop so that the basins maintain requirements in VA Miljøblad 112 as a complete system delivery
