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NORMACONNECT®

FGR

FGR pipe couplings are a compact, economical and reliable means of connecting plain-ended pipes. They are suitable
to join plastic and metal pipes, and especially pipes made from stainless steel. They can be used in mechanical
engineering and construction, shipbuilding, civil engineering, and in hydro technology.

Double-lip sealing system

(Fig. A)                                                          (Fig. B)                                      (Fig. C)

The patented double-lip sealing system (Fig. A) of the FGR pipe couplings offers double safety. It provides maximum
sealability at both low and high operating pressures.

When the bolts of the coupling are tightened, sealing lip 1 is pressed onto sealing lip 2, thus providing a highly reliable
seal even under conditions of low pressure, vacuum or extreme loads acting on the joint (Fig. B).

The special sealing lip design means that when the internal pressure (P) increases, the sealing lips are pressed more
firmly onto the pipe surface ensuring an even stronger seal (Fig. C).

Coupling Types and Suitable Applications

 Pipes to be         Size (mm)                        FLEX         FLEX E                         FLEX 3          REP E
   Joined
                     26.9 to 168.3                  70 to 32 bar  70 to 32 bar                        -         60 to 32 bar
 Metal to Metal     180.0 to 1219.2                 50 to 7 bar   30 to 4 bar                         -         30 to 4 bar
                    326.0 to 2032.0                                                            16.5 to 1.5 bar
Plastic to Plastic   26.9 to 168.3                        -             -                             -               -
Metal to Plastic    180.0 to 1219.2                    16 bar        16 bar                           -            16 bar
                     26.9 to 168.3                  16 to 4 bar   16 to 4 bar                         -         16 to 4 bar
                    180.0 to 1219.2                    16 bar        16 bar                           -
                                                    16 to 7 bar   16 to 7 bar                                         -
                                                                                                                      -

 Pipes to be         Size (mm)          GRIP         GRIP E       COMBI-GRIP E  COMBI-GRIP     PLAST-GRIP E     PLAST-GRIP    GRIP E-FP
   Joined
                    26.9 to 168.3    70 to 32 bar   70 to 32 bar           -           -               -               -      60 to 32 bar
 Metal to Metal                            -        20 to 2 bar            -           -               -               -      20 to 65 bar
                    180.0 to 419.0                                         -           -               -               -
Plastic to Plastic                   32 to 2.5 bar        -                -           -            16 bar             -            -
                    180.0 to 711.2         -              -                -           -               -         16 to 6 bar        -
Metal to Plastic                           -              -            16 bar          -               -               -            -
                    40.0 to 168.3                      16 bar                                                                       -
                                        16 bar                             -      16 to 6 bar          -               -
                    200.0 to 406.4                        -                                                                         -
                       38/40 to            -
                      160/168.3

                    200.0/204.0 to
                     406.0 /406.4

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