Installations in the presence of steep slopes

When the ground is actually a steep slope, the drainage system must keep the flow rate in the pipeline within the provisions of the relevant Safety Standards.
Normally, flow rate must be not more than 4-5 m/s.

 

HOFIT is able to provide two systems:

 

Innovative VORTEX DROP system: This exploits the centrifugal force to create a controlled turbulence and release the kinetic energy necessary to maintain equilibrium between the upstream and downstream conditions. Special devices also enable to break the flow at the outlet, thereby guaranteeing a laminar flow.

 

DOUBLE DROP system with an inner and outer drop: In the case of limited flows, the sewage drops down at the inlet tee and flows in the main channel; in the case of high flows, part of the sewage will drop at the tee, whilst the remaining part will enter directly into the manhole to create a dynamic load which increases the piezometric level.

 

The big advantage of the VORTEX DROP system is the greater efficiency compared with a traditional drop. Less drops are necessary. The pipeline can be parallel to the groundhence reducing excavation; the final result is a better performance at a lower overall cost.

The Hofit dissipation chambers have been developed through the cooperation with leading research institutions.

•