HydroLimiter® Slide Valve

Active, robust flow control for controlling water levels and managing cascades

The Area of Application

Modern sewer networks handle storm water, mixed effluents and wastewater using flow controls and discharge regulators, such as the HydroSlide and ElectroSlide from the Steinhardt product range. These instruments keep discharges from basins and sewers constant over the whole impounding length (Q = const).
Limiting flows is a separate task; for example, a flow must be set according to one specific impounding head value (Q ≠ const). Impounding takes place upstream.
Flow limitation also entails setting water levels. In this case, the HydroLimiter is installed against the high water pressure downstream (UW). The float is controlled by the backwater in the downstream channel.

The Solution

The HydroLimiter is extremely well-suited to control discharges or to limit maximum water levels. It is a cost-effective alternative when accuracy of the discharge is of secondary importance or when optimisation of channel volumes, using cascades, is desired.

HydroLimiter OW model
(upstream installation)
The discharge characteristics of the HydroLimiter in upstream installation can be adjusted on site by altering the lever position in accordance with the discharge flow diagram. Discharge characteristics are influenced by the backwater and the maximum discharges decrease.

HydroLimiter UW model
(downstream installation)
The HydroLimiter serves to limit the maximum water level, for instance in order to use storage areas in preceding channels and to protect downstream channels from flooding. This also applies to pump stations.
The discharge characteristics should be clarified with Steinhardt GmbH.
The HydroLimiter UW model is reinforced in order to cope with high hydraulic pressure.

The Advantages

  • controls discharges
  • limits maximum water levels
    for forming cascades
  • low-cost alternative when discharge accuracy is subordinate
  • complete stainless-steel construction, material 1.4301 (V2A), 1.4571 (V4A) on request
  • robust construction
  • easy mounting, no wall clearance
  • complete with stainless-steel fastenings and sealing material