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5.1 Cover
5.1.1 PUST04 - PUST10
Unless another solution is selected, ∅400 to 1000 mm pits are
supplied with a PE-HD cover locked with a special M10 bolt.
Fig. 7
Cover
Fig. 8
Locked cover
5.1.2 PUST17
Covers for ∅1700 mm pits come with various lock systems.
Warning
The pit must be locked to prevent unwanted
access.
5.2 Vent pipe
We recommend to provide the pit with a vent pipe.
Fig. 9
Pit with vent pipe
5.3 Cables
The cables to the level switches and the pump can be led into the
pit in different ways. Often the cables are led into the pit through a
cable entry in the side of the pit. If the pit is equipped with a vent
pipe, the pipe can be used as cable entry.
6. Technical data
6.1 Weight
6.1.1 PUST04 - PUST10
PUST.10.25.D.A.SS.DPSE is the heaviest standard pit, weighing
312 kg.
6.1.2 PUST17
PUST.17.60.D.A.SS.SW.PE.100 is the heaviest standard pit,
weighing approximately 1000 kg.
7. Sizing
The pit volume depends on the wastewater flow rate and the
pump performance.
If the liquid in the pit is static during long periods, sediments may
build up in the pit. The pump should therefore be started at least
twice per 24 hours.
8. Transportation
When handling and transporting the pit at low temperatures, take
into consideration that the pit impact resistance is reduced.
Precautions in order to avoid damage to the pit during handling/
transport:
•
Do not tip the pit from the lorry.
•
Use straps of textile or similar materials when lifting the pit on
or from a lorry or moving it.
•
Do not drag the pit over the ground.
•
Always use a suitable means of transport.
•
Point loads must not occur.
•
The pit must not be exposed to sharp edges.
•
Fix the pit securely during transport.
Fig. 10 Lifting the pit (PUST04 - PUST10)
9
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