Simplex Return Filters

Return simplex filters are positioned at the end of a return line to remove contaminants from the operating fluid before the fluid returns to the tank.

Strong, durable and die-cast aluminum housings, with Buna-N seals construction is perfect for return-line filtering, as line filters or as tank attachment filters on the tank or tank integrated filters in the tank.

  • Flow rates up to 15000 l/min
  • Working pressure up to 32 Mpa
  • Operating temperatures: -29°C to 121°C
  • Aluminum casting and Buna-N Seals
  • Wide range of indicator options
  • Various bowl length versions possible

These industrial simplex strainers are economical, space-saving units offering a variety of options, such as steel or plastic access covers, high-pressure option, numerous connections and accessories including bypass-valve, clogging indicators.

It is widely used in machinery, mobile and heavy-duty applications.

ModelFlow Rate
Pressure loss
ConnectElement Number
Low PressureRFA-25251,3,5,10,20,301.6Ø 15Initial:≤0.075 Max:0.35Thread1
RFA-4040Ø 20
RFA-100100Ø 32
RFA-160160Ø 40
RFA-250250Ø 50Flange
RFA-400400Ø 65
RFA-630630Ø 90
RFA-800800Ø 90
RFA-10001000Ø 90
Large FlowLFN-130013003~2001.6Ø100Initial:≤0.1 Max:0.35Flange1

Return Filters

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    Screw-in filter cover

    Lightweight and easy-operation, filter element can be easily taken out of the filter head.

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    Indicator Port

    Used for install indicator, indicating when to change filter elements

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    Rotary-pressing filter bowl

    Die-cast aluminum filter bowl ensure strength and durability.

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    Must be below the oil level.

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    Inlet port options include thread port or SAE 4-bolt flange to allow easy installation

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    Bypass valve

    When the pressure reaches to 0.35Mpa, bypass valve will open automatically to keep hydraulic system safe

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    Filter Head

    High-quality aluminum material, variety customizable colors options.

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    Fluid diffuser

    At bottom of the filter, help the medium flow stably to tank and avoid the air reentering.

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    Connect flange with tank

    Easy installation, both horizontal and vertical installation to tank are all right.

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