Internal Couplings

Internal Couplings

With our selection of Fernco Internal Couplings, pipes such as plastic, cast iron and steel pipes with the same inner diameter can be joined quickly and easily, regardless of the outer diameter. They are used when, for various reasons, no normal couplings can be used. This is the case, for example, when a pipe is cut flush, a concrete pipe with a foot or a pipe with a damaged or uneven surface.

Product Benefits:

  • Significantly reduces labour time for connecting problem pipes
  • Watertight connection on any pipe material
  • Connects pipes of differing or irregular outside diameters
  • No need to expose external surface of pipe
  • Pipe stop indicates that the product is properly installed, when it is flush to the pipe end
  • Passes pressure tests
  • Provides shear load protection
  • The whole range conforms to the requirements of BS EN 295-4:2013

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    Product Information

    Normally, pipes are connected to each other with couplings via the outside of the pipe. However, there are situations where this is not possible…

    Concrete pipes with foot

    Pipes with damaged surface

    Flush cut pipes

    Partially or completely concreted pipes

    With our range of internal couplings, we offer you permanent and safe solutions for these situations. This makes it very easy to connect two pipes via the inner pipe surface. In addition, the Flexseal internal couplings are designed in such a way that the natural flow of the waste water etc. is not affected by the installation inside the pipe.

    ICON Internal Coupling

    For the secure internal connection of two pipes of irregular or inaccessible external profile.

    In the past there have been several low pressure pipe connections which would challenge any coupling manufacturer. The main examples include:

    These challenges have now been overcome with the launch of the Fernco Icon Coupling, a unique coupling which securely seals against the internal surface of two pipes. A secure, permanent, watertight and airtight connection is now guaranteed on pipes from DN150 to DN400 with an internal circular profile.
    This will be a true innovation for our industry, solving several problems encountered on site. With the same ease as any of our other flexible couplings, two pipes of irregular or inaccessible external profile can now be securely connected.

    Available to suit pipes with internal diameters from 150 – 400mm. Larger diameters will be available in due Course.

    Product Benefits:

    • Apart from the seal, no other materials and no special tools are required
    • The ICON complies with the requirements of DIN EN 295-4!
    • The connection is permanently tight. No soiling or contamination of the soil by sewage!
    • Due to the long service life, there are no additional costs for monitoring and maintenance
    • Pressure tight up to 0,5 bar
    • For the connection of PVCu pipes of nominal sizes DN 200, DN 250, DN 400 and DN 500, an overrunning sleeve may also be required to meet any diff erences in internal diameter. This is the only way to safely bridge the diameters!

     Technical Information:

    • Overall width of coupling is 130mm
    • Stainless steel components are Grade 1.4301 material. Grade 1.4401 (SS 316) is also available
    • Sizes 150mm up to 300mm with single bolt assembly; sizes greater than 300mm with two bolt assembly
    • Seal has tapered end sections for a smooth transition between the pipe bore and the coupling
    • Bushes can be used where there is a significant difference in Diameter
    Icon Mechanical with concrete and plastic pipes

    Data Table

    Article No.Size (DN)Inside Diameter (mm)WidthTorque (Nm)
    IC 150150149 - 15313015
    IC 200200198 - 20213015
    IC 200 KG (inkl. Ü-Muffe orange/braun)200198 - 20213015
    IC 200 PP/KG2000 (incl. Ü-Socket green)200198 - 20213015
    IC 250250248 - 25213015
    IC 250 KG (incl. Ü-Socket green)250248 - 25213015
    IC 250 PP/KG2000 (incl. Ü-Socket green)250248 - 25213015
    IC 300300299 - 30313015
    IC 300 KG2000 (incl. Bushes)300294 - 297 / 299 - 30213015
    IC 400400398 - 40213015
    IC 400 PP/KG2000 (incl. Ü-Socket green)400398 - 40213015
    IC 500500498 - 50213015
    IC 600600598 - 60213015

    Pushfit Internal Coupling

    The Internal Coupling Pushfit connects pipes with for example plastic, cast and steel pipes with diff erent outer diameters over the inner surface of the pipe, if for a variety of reasons, a normal coupling cannot be used.

    The new Pushfit connector is only 52 mm on each side in the pipes to be connected and reduces the pipe cross-section by less than 10%!

    It complies with all test criteria of DIN EN 295-4.

    • Group of Icon Pushfit Couplings
    • Icon Pushfit Installed

    The Icon Pushfit range consists of three variations designed to provide straight connections to DN100 and DN150 pipes, or to provide adaptor connections when DN100 pipes are connecting to DN150 pipe sizes.

    Straight Connection

    Adaptor Connection

    DN100

    Icon Pushfit Coupling for 6 inch pipes

    DN150

    Icon Pushfit Coupling for 4-6 inch pipes

    DN100 – DN150

    Product Benefits:

    • Can be installed in 30 seconds or less
    • Quick and easy alternative to standard couplings
    • Pushfit connection – no tools required
    • Can be removed and re-used
    • Watertight connection on any pipe material
    • Connects pipes of differing or irregular outside diameters
    • No need to expose external surface of pipe
    • Pipe stop indicates that the product is properly installed, when it is flush to the pipe end
    • Passes pressure tests
    • IC150P used on DN150 pipes conforms to shear load performance requirements of EN295

    Data Table

    Straight Connection

    Article No.Size (DN)Inside Diameter (mm)Width (mm)
    IC95P10093-98110
    IC100P10099-104,5110
    IC150P150148-153171

    Adaptor Connection

    Article No.Size (DN)Inside Diameter (mm)Width (mm)
    IC95-100P10093-98/99-103110
    IC95-150P100/15093-98/148-153141
    IC100-150P100/15099-103/148-153141

    Inside/Outside-Adaptor

    The Fernco Inside/Outside-Adaptor connects all pipes that are circular on the inside, such as concrete pipes with at-base, reinforced pipes or wall ducts.

    Produktbild Innen-Außen-Adapter IA

    The adaptor consists on one side of an inner sleeve made of an impact-resistant ABS material with a lip seal that is inserted into a defined pipe or borehole. The opposite side simulates the spigot end of a commercially available plastic pipe (e.g. KG / KG2000).

    Anschluss eines KG-Rohrs an ein Betonrohr mittels IA-Adapter

    Direct connection with KG socket

    Connection with 2B1 universal coupling All-In-One

    Anschluss eines KG-Rohrs an ein Betonrohr mittels IA-Adapter und SC-Manschette

    Connection to pipe spigot using standard coupling type 2B

    Anschluss eines KG-Rohrs an ein Betonrohr mittels IA-Adapter und DC Drainagekupplung

    Connections with adaptor couplings or drainage couplings.

    Product Benefits:

    • Pushfit connection – no tools required
    • Easy installation – within minutes
    • Safe against shear loads
    • No cleaning of the outside surfaces required.

    Data Table

    Article No.Size DNInside Diameter (mm) Spigot (mm)Outside Diameter (mm) Width (mm)
    IA10010099 - 104.5110125130
    IA125125123 - 127125145170
    IA150150147.5 - 153160180170
    IA200200198 - 202200220175
    IA225225/250220 - 225270250185
    IA250250248 - 252250270175
    IA300300298 - 302315333200

    Downloads

    Pushfit Internal Coupling

    Inside/Outside-Adaptor

    Pushfit Internal Coupling

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    Datasheet- ICON Internal Coupling

    Product Videos

    Icon Pushfit for 4 Inch Pipe Installation

    Icon Mechanical Coupling Installation

    Inside/Outside-Adaptor Installation

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