• Interference Joint

    The interference joint system consists of an integral bell and spigot. The spigot end has a buttress type, male thread for easy installation. The belled end contains the mating female threads. The tapered buttress threads make it easy to join while giving it a high pull out strength of 1000 lbs. The joint is concrete tight it a high pull out strength of 1000 lb. The joint is concrete tight but not water tight.

  • Straight Socket

    The straight socket system consists of an integral bell and spigot where the bell is bonded on. The spigot end easily slides into the belled end. This joining system is intended for use with Champion Fiberglass epoxy adhesive.

  • Gasket Joints (Triple Seal)

    The gasket joint system consists of an integral bell and spigot. The belled end has a triple seal gasket in addition to the interference joint. The triple seal gasket fits into a permanent groove formed during the manufacturing of the conduit. Because of this design, thermoplastic retainer rings, which often fall out during cold weather, are not necessary. The triple seal gasket provides a water tight seal. When properly installed, the triple seal gasket in combination with the interference joint has a pull out strength of 2000 lb. Triple seal gasket without interference joint (e.g. after a field cut) has a pull-out strength of 500 lb.

  • Tight Lock Joint

    The Tight Lock Joint is the interference joint or the straight socket joint combined with epoxy adhesive. The adhesive is applied to the spigot end of the conduit, and after the proper set-up time, the joint is as strong as the conduit itself. This type of joining method provides the best water tightness and pull-out strength. For pull-out strength.

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  • Interference Gasket Joints (IPS)
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  • Male Adapters (Tapered Threads)-2

    Male adapters with tapered threads (NPT) are generally used for joining to female threads of rigid steel, Myers type hubs or terminating into precast iron boxes with female thread entrances.

  • Male Adapters w/Gasket (Tapered Threads)-2

    Male adapters with tapered threads (NPT) are generally used for joining to female threads of rigid steel, Myers type hubs or terminating into precast iron boxes with female thread entrances.

  • Special_Adapter__PVC_fittings

    This terminal adapter has tapered threads and a straight shoulder so it can fit under the PVC sleeve of a PVC coated steel fitting.

  • Female Terminal Adapters-2

    This adapter is generally used for joining fiberglass conduit with galvanized rigid steel (GRS) conduit. It has the same threads as GRS conduit and can easily be attached to GRS conduit.

  • Female Terminal Adapters w/ Gasket-2

    This adapter is generally used for joining fiberglass conduit with galvanized rigid steel (GRS) conduit. It has the same threads as GRS conduit and can easily be attached to GRS conduit.

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    Stop coupling is sometimes referred to as a double bell coupling.

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    Other angles can also be manufactured, such as 2.5ยบ etc. Please contact Colonial TelTek for consultation.

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    Expansion Joints
    Stop coupling is sometimes referred to as a double bell coupling.

    Single Expansion Joint Socket x Spigot, no O-Ring
    Installation of Expansion Joints

    • When the duct is shorter than 50 ft., no Expansion Joint needed
    • When the duct is between 50 ft. up to 200 ft., install one Expansion Joint at the mid point
    • If the duct is longer than 200 ft., install one Expansion Joint every 200 ft. apart
    Note:
    All Expansion Joints have a yellow line on the nipple end of the joint for proper installation.

  • Fiberglass Conduit & Fittings (90 degree x 12 in.)
  • Fiberglass Conduit & Fittings (90 degree x 24 in.)
  • Fiberglass Conduit & Fittings (90 degree x 36 in.)