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Live Sewer Re-Line

Project: Live Sewer Re-Line

Carrier Size: Nominal 42” & 39” Semi Elliptical (SE)

Casing Size: Variable  – Semi Elliptical

Spacer Model: HD 50 & HDX-38

Kwik-ZIP HD-50 and HDX-38 spacers were utilized to facilitate the sliplining of new semi-Elliptical FRP liner pipe around curves into an existing concrete semi-elliptical pipe for a sewer replacement project in Los Angeles.

Two different pipe sizes utilised in the project required the use of the two kwik-ZIP models – one of Kwik-Zip’s advantages is the provision of flexibility of solutions which can meet a wide range of project requirements.

Two kwik-ZIP spacer rings were installed on each 2.8m pipe segement to protect the carrier pipe from abrasion or damage during the pipe installation.

kwik-ZIP’s HD spacers are well suited for use in environments with rough surfaces as their curved bow design allow them to be easily pulled or pushed over rough ground surfaces.

Furthermore, the unique design enables kwik-ZIP spacers to be used on any pipe profile as was a significant requirement in this project.

Kwik-ZIP’s spacers have no metal parts and are made from Kwik-ZIP’s engineered thermoplastic blend – a high-grade thermoplastic that is flexible, extremely tough and has a low coefficient of friction.

Both the HDX and HD spacers are simple and the efficient installation process does not require any special tools.

For further information on kwik-ZIP products and to discuss your specific project requirements please contact us



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Our Casing Spacer and Centralizer Systems

  • HDX / HDXT Casing Spacers
    FOR Medium to Heavy Weight Pipe in Cased Crossings
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  • HD Series Casing Spacers
    FOR Trenchless and Cased Crossings, Slip Lining
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  • GT Series Centralizers
    FOR Rock Bolts, Soil Nails, Anchors, Small Dia Drop Pipe
    View product information
  • 380 Series Centralizers
    FOR Gravel Packed Screens, Casing, Drop Pipe
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  • 155 Series Centralizers
    FOR Pump Installation and Anchors and Sheathing
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  • Tools
    FOR 155 & 380 series
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Product Range

  • HDX Series Casing Spacers
  • HD Series Centralizers and Casing Spacers
  • GT Series Centralizers
  • 380 Series Centralizers
  • 155 Series Centralizers
  • Installation Tools (required for 155 / 380 Series only)

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Installation guides

  • Installation Guide for the 155 and 380 Series
  • Installation Guide for the HD Series
  • Installation Guide for HDX
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