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SCHROEDAHL Automatic Recirculation Valve

Schroedahl's pump protection unit so-called automatic recirculation valve automatically protects the pump against damage during low load. As soon as the flow through the pump approaches the "minimum flow" the bypass system opens and flow will be recirculated and guarantees the required minimum flow.

The SCHROEDAHL® Automatic Recirculation Valve combines 3 main functions in one shell:

  • Automatic recirculation flow for pump protection during low load conditions
  • Non-return function to protect the pump against influences from the system
  • Pressure reduction in the bypass during recirculation
Typical fields of application for SCHROEDAHL® Automatic Recirculation Valves are to be found where liquids are conveyed by pumps:
  • Power stations
  • Industrial plant
  • Petrochemical industries
  • offshore
The SCHROEDAHL® Automatic Recirculation Valve satisfies the requirements for automatic circulation in all types of systems.

Moreover, it excels in particular through:
  • Low installation and maintenance costs
  • Safe pressure reduction in the bypass in regards of cavitation and erosion
  • Individual adaption to the pump specifications
  • Few wear parts only
  • Service-friendly
  • Quality assurance measures in accordance to the requirements to DIN/ISO 9001
SCHROEDAHL-Arapp is one of the largest suppliers of Automatic Recirculation Valves in the world.