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Pipes and fittings with PTFE lining

 


Plastics used as a material for valves are useful because of its good chemical resistance, especially when it comes to such medium as water, solvents, acids, bases and salines. Plactics quite often are more sufficient material than metalls, therefore they are often used in chemical industry.

One of the most common material in petrochemical industry, which requires anti-corrosion materials, is polyvinyl chloride (PVC), poliethylene, phenolics, furaldehyde, epoxide, polyester , polyamide and polytetrafluorethylene (PTFE). The most universal material, when it comes to chemical resistance, as well as to temperature range (from -100 to +260°C) is polytetrafluorethylene (PTFE). This material is resistant to all chemical mediums and is even resistans to aqua regia (nitro-hydrochloric acid), which melts even noble metals (i.e. gold).

PTFE is very popular in industry especially when it comes to developing pipelines (all elements), tanks, valves etc.

Introducint plastics in chemical industry allows to extend the resilience of the equipment, what helps to gain economical advantage.


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