FAQs

General

What does PP stand for in piping?

PP pipe stands for polypropylene pipe. It is a versatile plastic polymer used in many industries because of its durability and eco-friendly profile. In venting systems, PP pipe provides a dependable alternative to traditional materials, reducing installation time and improving system safety.

What is PP material made of?

PP, or polypropylene, is a thermoplastic polymer known for being lightweight, strong, and recyclable. Centrotherm uses flame-retardant polypropylene to manufacture InnoFlue® vent pipes and fittings, ensuring safety and durability in heating systems. This material resists corrosion and harsh flue gases, making it ideal for modern condensing appliances.

What is PP pipe?

PP pipe refers to piping made from polypropylene (PP), a durable plastic widely used in flue gas venting systems. Centrotherm’s InnoFlue® PP pipes are lightweight, gasketed, and engineered for safe, reliable venting. Unlike PVC, PP pipes don’t require glue or solvents, making installation cleaner, faster, and more environmentally friendly.

Learn more about our InnoFlue® Polypropylene vent systems.