Skip to content
Submit a quotation form and a member of our team will be in touch to assist you with your order
Submit a quotation form and a member of our team will be in touch to assist you with your order

DuctPlug - Reusable Rubber Expansion Plug for Pipe Sealing

Rubber Expansion Plug for Pipe Sealing – Reliable, Reusable, Rapid-Fit Stopper

Designed for performance, the rubber expansion plug from AC Cable Solutions is a top quality mechanical stopper for sealing open ended ducts and pipes in utility, telecom, rail and highway works environments. Stops water, air, debris or rodents getting in – no adhesives, resins or mess.

These plugs are suitable for use in critical UK infrastructure projects, including motorway communications networks and maintenance hubs. Manufactured from corrosion free HDPE and a pressure rated thermoplastic elastomer, they provide a long lasting barrier for underground and exposed conditions.


🔧 Features That Deliver

  • Rapid fit with no tools required – Insert & tighten
  • Integrated tie rings for easy pull cord attachment
  • Wide diameter and size range to fit ducts from 20mm to 165mm
  • Reusable – remove and refit with ease

🛠 Applications

For sealing:

  • Blank ducts, conduit ends, core holes and entry points
  • Manholes and equipment cabinets
  • Cable pathways in motorway communications and highway works
  • Projects requiring certified sealing for water and air to 0.5 bar

This pipe stopper gives a reliable effective seal to protect infrastructure – no interruption during maintenance or upgrades.

📏 Show Sizes
Size Description Duct ID Range (mm)
AC25 DuctSeal Plug 25 20 – 24 mm
AC32 DuctSeal Plug 32 25 – 29 mm
AC40 DuctSeal Plug 40 32 – 37 mm
AC50 DuctSeal Plug 50 37.5 – 46 mm
AC63 DuctSeal Plug 63 46.5 – 60 mm
AC75 DuctSeal Plug 75 60 – 75 mm
AC90 DuctSeal Plug 90 75 – 88 mm
AC100 DuctSeal Plug 100 88 – 100 mm
AC110 DuctSeal Plug 110 100 – 110 mm
AC150 DuctSeal Plug 150 148 - 165 mm (coming soon)

Comprehensive range of sizes, ensuring you have the right plug for every pipe and conduit.


📍 Proudly Supporting UK Infrastructure

Whether you’re installing new ductwork in Manchester or maintaining data routes in the South East, our sealing solutions are used by contractors across the UK. All units are built to spec for UK climate and project standards.


🪰 Technical Overview

  • Material: HDPE body with thermoplastic elastomer gasket
  • Sealing: Airtight and watertight to 0.5 bar
  • Sizes: Available for duct IDs 20mm to 165mm
  • Full range of reference codes for easy product selection. Get your quote today!