Depending on the configuration, Envirolock may include up to three key components: the composite liner, the annulus, and the end caps/bulkheads. TCI will customize its exact parameters based on each pipeline's specifications and the client's needs.

Annulus

(ECS Configuration) A porous mat-like PVC (or similar) material dubbed "Enviromesh" defines the annulus. It is wrapped around the pipe to an appropriate thickness. Principally, the Enviromesh is used to: 1) diffuse the energy (upwards of 5000 psi or more) of a leak "jet", and 2) provide the space to capture and contain any leaks within the annulus. In addition, the annulus houses a fiber-optic leak detection system. This safeguards the monitoring system from external threats and helps prevent false positives.

End Caps/Bulkheads

(ECS Configuration) These components chiefly prevent the migration of leaks to adjoining sections and into the environment while also reducing the possibility of "creep". In doing so, they protect ecosystems while enabling operators to pinpoint leaks without exploratory excavation. They are also cathodically sound and provide ingress into the system for leak detection cables.

Composite Liner

(ECS, EPRS, and ECA Configurations)

• Inner Liner - The inner liner, principally comprised of polyurea, provides chemical resistance as well as the required thermal expansion. properties. If needed, we can also add a ceramic polymer to enhance protection against more severe chemical/temperature environments (i.e. carbon dioxide service).
• Carbon Fiber - Multiple layers of carbon fiber are robotically wound around the inner liner to provide the required strength/reinforcement.
• Outer Shell - The outer shell, comprised of polyurea, resists both external corrosion and impacts.