Our legendary Flow of Fluids handbook, Technical Paper 410 was introduced in 1942 and became the quintessential guide to understanding the flow of fluids through valves, pipes and fittings. Our most recent 2020 edition now includes a chapter on Heat Transfer.




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North Carolina 28704
United States

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We offer technical expertise and advice because we understand that specialized products require customized expert support. We also offer training programs on-demand.


Safety is our priority. When working with corrosive or abrasive media in the chemical, petrochemical, refining, oil & gas, power and biopharma industries, our products meet high safety standards and are therefore used and accepted in these industries, worldwide.


Quality is always at the core of our business. Our products are subjected to thorough measurements and quality checks throughout the production process. Each finished product is carefully inspected and tested in a final check. With our quality checks and programs in place, we can assure a consistent quality.

About TP410®

PSI® offers solutions for the chemical, energy, paper, steel and pharmaceutical industries.

PSI products combine the best materials including Teflon® PTFE, Polypropylene, and PVDF with innovative manufacturing technology to help our customers operate more reliably, safely and cost effectively.

Teflon® is a trademark of DuPont. Only DuPont makes Teflon®.