Push-to-Connect · FF/FX/FH/FU Series

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Push-to-Connect Couplings · FF/FX/FH/FU Series

The FF series represents the consequential advancement of the long standing and proven flat seal couplings of the FH series. The use of better quality materials allows for even higher operating pressures than those pressures stated in the standard ISO 16028.

The construction of the flat valves ensures that coupling and decoupling only leads to minimum oil losses and/or air locks.

The major areas of use of these couplings are engines in environment critical areas and hydraulic tools. Their modular architecture ensures the availability of a large quantity of connections complying with international standards.


Working Pressure
250 ... 400 bar / 25 ... 40 MPa / 3625 ... 5800 PSI

The indicated pressure ratings only apply to the
coupling itself and depend on the connection type.

Working Temperature
-25° C ... +100° C / -13° F ... +212° F


Surface Finishing

Standard Seal Material(s)
NBR (Buna-N®), PTFE, PU

Alternative seal materials are available on request.