Above ground
Trenchless Technology

Today’s growing urban areas may make it impractical to make open trench excavations and disrupt the surface conditions in order to install, replace or renovate underground piping systems. “Trenchless technology” includes the lining of existing pipes, called “sliplining,” where a new pipe is installed inside the existing deteriorating pipe. It can also include the microtunneling process of boring a hole and pushing or “jacking” the new pipe into the created excavation. FLOWTITE Technology has products/technology to meet these new application needs.

The FLOWTITE manufacturing process is unique in that it easily permits a custom product to be made to meet the specific project requirements. With the ability to make custom diameters, FLOWTITE can create the optimum pipe size to match the inside diameter of the existing pipeline. This will provide the maximum flow capabilities while still permitting ease of installation. Standard FLOWTITE pipes can be assembled outside the deteriorated pipe and then pushed into place. This can be done even with low flows (less than 1/3 full). For pushing long distances, thrust rings can be built onto the spigot ends of the pipe, allowing the transfer of up to 40 tons per meter of circumference through the joint without affecting the sealing capability. This is especially important for rehabilitating pressure lines. For very large diameters (over 1,600mm) the pipe can easily be carried using a lightweight frame cart and assembled at its final position. The ability to manufacture variable lengths (standard length 6, 12 or 18 meters) can further help reduce installation time. Reduced installation time means lower installed costs and less “down-time” for the pipeline that is being rehabilitated.

Features Benefits

Custom diameter capabilities Minimizes the loss of interior dimension of the existing pipe, maximizes flow capabilities

Custom lengths Easier, faster installation, less pipe line service downtime


The FLOWTITE pipe designed for microtunneling and jacking is a GRP and concrete composite which takes advantage of both materials’ attributes. The GRP portion of the pipe provides a corrosion resistant pipe which is pressure rated while using the concrete outer layer of the composite to withstand the very high forces needed for “jacking” the pipe. Because the FLOWTITE jacking pipe is pressure rated, it is now possible to install pressure water and sewage systems using trenchless technology.

Features Benefits

Corrosion resistant material

All the benefits of a standard FLOWTITE pipe
Flowtite coupling technology

Pressure ratings same as a standard FLOWTITE pipe
Concrete outer layer

Permits pipe to be “jacked” in the same manner as non GRP-pipes