Bypass valve HDS

The HDS valve (HDS = hydrodynamic switch) is intended for following applications:  

1. Maintaining a certain differential pressure in a bypass system
   The bypass (overflow) valve opens when a defined pressure is reached. In case of fluctuating pressure, excessive water is lead through the bypass by continous regulation of the valve, thus protecting flow sensitive appliances.
    
2. Regulation of the differential pressure in heating systems
   The HDS maintains a minimum circulation within the boiler system.
   E.g. in heating circuits, the heating water will be conducted partly from the flow directly to the return.