Flow-Liner® Systems
Tegra ManholeTM

Tegra Manhole

For New Installs or Replacements
Long Lasting Cost Saving
Low Maintenance Design

Tegra ManholeTM is the 'missing link' to a total plastic sewer system. The advanced design of the rib structure and shape of the cone provides it with the required strength and stability against heavy traffic load.

Fields of application
Tegra ManholeTM provides easy access for sewer lining, inspection, cleaning and maintenance in sewer and drainage systems in non-traffic and traffic areas. The load bearing capacity on an installed manhole is 40 tons truckload.

Range
The Tegra ManholeTM consists of three parts being the cone (top), the shaft and the base. The shaft is available in different heights depending on the installation depth. The Tegra ManholeTM base is available in different flow profiles and suitable for pipe connections from 6 inch to 15 inch. Tegra ManholeTM installation depths range from approximately 3 ft. to 26 ft.
The Tegra ManholeTM has spacious 24 inch entrance and diameter of approx. 40 inches. The manhole is supplied with an inside ladder and optional telescopic safety rod. Extra “in-situ” pipe connections can easily be made.

Flow Profiles
The Tegra ManholeTM base is available in 7 different flow profiles.
  • Straight 180° 6", 8", 10", 12", 15"
  • Bend 15° 8", 12"
  • Bend 30° 8", 12"
  • Bend 45° 8", 12"
  • Bend 90° 8"
  • Left and right junction 4 connection 6", 8", 12"
  • Empty Base (no inlet or outlet)
  • Other base configurations maybe available upon request
Features and Benefits
  • Completely plastic in HDPE
    Corrosion resistant, durable. long lasting design, low maintenance
  • 90% Lighter than Concrete Manhole
    Therefore easy to handle and install.
  • Resistant to Heavy Traffic Load
    Up to 40 tons truckload.
  • Simple & Reliable In-situ Connection Possible
    Additional connections can be made in the shaft.
  • Lower Installation Costs
    Due to the easy cutting of the shaft to the correct height, easy connection of extra pipes
    on the site and adjusting to the correct level.
  • Completely Tight
    Due to the rubber ring sealing.
  • Adjustable Height
    The shaft can easily be cut to adapt the manhole to the required installation depth.
  • Variety of Installation Depths
    By joining shafts, installation depths can range from 3 ft. to 26 ft., with a maximum groundwater level of 16 ft.
  • Smooth Internal Surface
    Less slime build-up, minimizing the risk of blockages. Easy to clean, low maintenance efforts required.
  • Stable and Durable
    Due to the unique rib structure and shape.
  • Excellent Chemical Resistance
    Tegra ManholeTM is made from PE, which is resistant to a great number of chemical agents.
  • 50-year minimum life expectancy
Installation
  1. Prepare a suitable bedding layer.
  2. Place the Tegra ManholeTM base into position and make all pipe connections.
  3. Apply lubricant to the rubber ring and place around the base.
  4. Apply lubricant to the shaft socket and bring it to the correct position by placing in line the ladder marks on the outside of the shafts.
  5. Clean carefully before placing the rubber ring in position at the next shaft section.
  6. Back fill and compact layer wise with granular material around the manhole.
  7. Install the cone in the same way as the shaft.
  8. Install the concrete slab, rubber seal and cover.
  9. (In accordance with local requirements)

Tegra Video

Tegra Chamber & Manhole System

Tegra

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