Neoperl® Flow Restrictor

  1. General Details

    Flow restrictor, or regulators, are used to limit the maximum flow output go the shower heads and bidet nozzles on which they are installed.

    Flow regulators or restrictors are used in faucets, kitchen sprays, showerheads and shower hand sprays to meet general code and standard requirements, and save water and energy without sacrificing comfort of use. They can be inserted directly into a faucet, kitchen spray or showerhead or as an integral component of our PCA® aerator line.


    The flow restrictor must be installed so that the direction of the water flow was as shown below ; the side of the restrictor with the black rubber ring must face the incoming flow of water.

    WARNING: If the flow restrictor is not installed in this manner, the flow of water will dislodge the black rubber ring and will damage the restrictor.

    Common flow restrictor used in hotels

    • 4L/minute flow restrictors: typically used on bidet nozzles
    • 6 and 8L/minute flow restrictor: typically used on showerheads.

  2. Product Features

    A flow regulator is a component which maintains a predefined flow rate near-constantly and mostly independently from the prevailing line pressure.

    It is mounted invisibly inline and compensates for pressure variations between 1 and 8 bar.

    NEOPERL® flow regulators are designed to be used exclusively in clear water applications. Possible applications for flow regulators:

    √ water sharing
    evenly distribution of water at a predefined flow rate

    √ water saving
    e.g. for bath or shower applications (see illustration)

    √ technical applications
    cost-efficient solutions for various technical applications.

    Flow Regulators are also a crucial component in every PCA aerator.

  3. Video: Washer regulator for shower Hoses
  4. Video: Flow regulator technology: how it saves water
  5. Order Enquiry
    Order Enquiry Form on Product page
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