Features and benefits

  • Pressure relief controllers group
  • Pressure and differential pressure relief controllers (A, PA)
    Relief pump/application and forward heat power to other connections

    Pressure and differential pressure relief controllers consist of a valve and a pressure actuator. Primarily used to limit a pressure (A) / differential pressure (PA) over a system/substation/pump. Controllers are normally closed: AV(P)A due to a normally closed valve and AF(P)A due to a stretching spring.

    Pressure and differential pressure relief controllers are primarily installed into a bypass. They can be used to enable heat power distribution to other network connections or idle flow in case the connection(s) close(s) completely. Pressure and differential pressure relief controllers can protect variable flow pumps from overload in the event that flow falls below minimum pump capacity.

    A pressure relief controller can also be installed into the return to maintain a higher desired (static) pressure in the system.

     

  • Introduction to differential pressure controllers

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