Polypropylene Lined Pipe & Fittings

PP-Lined Pipe and Fittings

Based in St. Louis, SEMCOR has been a long time provider of pipe fittings and other fluid handling products for clients throughout the Midwest. For more than 100 years, we have been striving to offer our customers the best products on the market today and to back up everything we sell with exceptional service and support.

If you’re in the market for polypropylene (PP)-lined pipe and fittings, we can help. We have an extensive supply and we are able to quickly process and deliver orders for clients in Missouri, Illinois, Indiana, Kentucky and Iowa, so you can get to work faster. We also offer extensive customization and fabrication services for special projects.

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Uses and Applications

polypropylene-lined-pipe-supplierPolypropylene is one of the most economical types of plastic pipe fittings. It offers a number of the benefits of more expensive PTFE good resistance to both basic and acidic chemicals. PP-lined piping can be used safely in temperatures up to 225ºF. It possesses some abrasion resistance and becomes brittle at lower temperatures.

Typical industries and applications in which PP-lined pipe is employed include water treatment, chemical processing, food and beverage, and power generation. For detailed product specifications and more information on potential applications, contact SEMCOR directly.

PP Lined Pipe & Fittings Brands

SEMCOR is an authorized distributor of PP pipe fittings by Resistoflex®, a leading manufacturer of fluid handling products. Through this partnership, we are able to offer the company’s comprehensive lineup of products, including both polypropylene copolymer and polypropylene homopolymer lining, in a wide range of sizes and configurations.

Polypropylene homopolymer linings are typically used with 1”-8” swaged pipe and 1”-12” fittings. Polypropylene copolymer linings are somewhat more ductile and possess lower temperature resistance. They are used with Thermalok® piping between 1”-12”.

Resistoflex Design Manual

Resistoflex Field Fab Manual


We are able to provide extensive customizations to any PP-lined pipe fitting or related product. If you have special requirements that can’t be met with an off-the-shelf product, get in touch with one of our sales engineers directly.

View Products & Contact Us

Get in touch with a SEMCOR representative directly to learn more about our current inventory of Resistoflex PP-lined pipe fittings and other products. One of our team members will be happy to discuss your requirements and help you choose the pipelining that will offer the best overall combination of value and performance.

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