Premier Tech Aqua Rewatec NEO Flachtank 800L, Technical Documentation Manual

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Premier Tech Aqua • Rewatec
®
11/20 NEO Flat tank 800L
DORW5008- 16.02.2015
Technical documentation
Underground container NEO 800L
Overview of Contents
1. Location ................................................................................................................................. 11
2. Installation .............................................................................................................................. 12
3. Installation Guide .................................................................................................................... 14
4. Main Dimensions NEO 800L .................................................................................................. 17
5. Accessories ............................................................................................................................ 18
1. Location
1.1 Position in relation to buildings
The excavated pit must not be located within a minimum distance from a building. (see section3,
image 1). A structure may only be built over the tank if the loads during construction do not
exceed the traffic loads.
1.2 Traffic conditions
Load class A15 (pedestrians, cyclists): no special equipment required.
Load class B (passenger cars, minibus, maximum axle load
– 2.2 tonnes) Minimum distance from
the top of the tank to the ground surface: 600 mm Additional information is provided in the
technical documentation for the DN 300 Professional Shaft Extension.
1.3 Ground conditions
The tanks may only be submerged up to the top of the tank (“shoulder height”; see illustrations in
Section 4) in ground water or a high water table. The installation depth must be at least half as
deep as the immersion depth in the ground water / high water table (negative buoyancy).
With suspended (“liquefied”) clay soil, the immersion depth may not exceed 150 mm.
1.4 Slopes
The soil in the area must be checked for stability (DIN 1054 Edition 1/2003, E DIN 4084 Edition
11/2002) and stabilized with a retaining system (i.e. a wall) if necessary. Additional information is
available from local public authorities and construction companies.
1.5 Excavation
In firm, compact soil with an excavation pit up to 1.75 m deep (measurement A3 in figure 2 and
15a and 15b in Section 3), no angle of repose is necessary. The working area should be wide
enough so that the filling material can be compacted (200 mm in Figure 2 in Section 3). For
depths larger than 1.75 m, a 500 mm working area must be maintained; the tank is to be
surrounded by a layer of backfill material at least 300 mm thick (Figure 15a and 15b in Section 3).
For loose soils (coarse sand, gravel), the information above applies for an excavation pit depth of
1.25 m or larger.
Even when the working area width measures 500 mm, the installation steps illustrated in Section
3 in images 3 to 13 as well as the illustrations 14a, 14b, 15a and 15b must be followed.
1.6. Additional criteria
Any existing cables, pipes, vegetation or other special features present must be taken into
account so as to avoid any possible impairments or risks. The soil above the top of the tank
(Section 4) may be up to 1.5 m deep.