Aggressive media eat through conventional steel. PTFE-lined, GRP and composite systems exist to stop that — and the right one starts with your process conditions.
Discuss your application01 · In service
Acids, chlorides and other corrosive process fluids sit in constant contact with the bare steel wall.
Each technology has its own limits on temperature, pressure and chemistry. We help select the system that fits your process — not a one-size-fits-all answer.
A fluoropolymer liner inside a steel shell combines near-universal chemical resistance with the pressure rating and support of metal pipe.
Glass-reinforced plastic is light, does not rust and resists many corrosive fluids — well suited to large-bore and buried lines.
Polypropylene or PVDF liners offer an economical barrier where temperature and chemistry sit within their range.
Matched pipe, fittings, valves and spools built as one system — so every wetted part is protected, not just the straight runs.
An educational sequence showing why operating conditions come before material selection. It does not represent a Valorex product, a repair method, or an application-specific recommendation.
The internal metal surface meets the process fluid across the wetted flow path.
Chemistry, concentration, contaminants, flow conditions, and operating cycles all influence how that exposure should be evaluated.
Attack may develop at particular areas rather than uniformly across the entire surface.
The illustration keeps the affected metal visible. It does not suggest that existing metal loss can be reversed by choosing another material system.
Chemistry, temperature, and pressure are considered together before a system architecture is selected.
A PTFE-lined metal system and a GRP composite system are distinct constructions with different design, joining, support, and suitability considerations. They are not interchangeable.
A newly specified lined pipe can place a protective barrier between the process fluid and its metal shell.
This is a separate new-system cross-section—not a transformation or repair of the corroded pipe shown earlier. Final material and system selection requires application-specific engineering review.