Polypropylene flue pipe 80 mm diameter, 1 metre length from SpiroFlex. The SpiroFlex SX-PPJ80R rigid PP section is engineered for exhaust and flue gas systems where chemical and corrosion resistance, dimensional stability and moderate temperature performance are required. This 80 mm flue pipe provides a straight, smooth-bore connection between gas or condensing boilers, furnaces and ventilation ducts in residential and light-commercial installations. The polypropylene construction resists common combustion condensates and many chemicals while remaining lightweight and easy to position.
Advantages
The SpiroFlex polypropylene flue pipe combines chemical and corrosion resistance with thermal stability at typical flue temperatures, maintaining shape and sealing integrity over time. Its smooth internal surface reduces flow resistance and soot accumulation. As a rigid 1 m section, it offers reliable mechanical alignment and straightforward joining to compatible fittings and seals. The material is non-metallic, reducing the risk of galvanic corrosion when installed near dissimilar metals.
Suitable for (tasks / use cases)
- Connecting gas or condensing boilers to flue systems
- Extending exhaust runs for furnaces and water heaters
- Ventilation and ducting in residential and light-commercial buildings
- Installations where chemical resistance to acidic condensate is required
Key specifications
- Material: polypropylene (rigid)
- Outer diameter: 80 mm (nominal flue size)
- Length: 1 metre
- Surface: smooth internal bore to reduce resistance
- Temperature performance: suitable for typical flue gas temperatures in residential and light-commercial applications
- Corrosion resistance: resistant to acidic condensates and many chemicals
How to use
Measure and cut the discharge line so that the 1 m section fits with the correct overlap for your chosen sealing system. Insert the pipe into compatible fittings or sockets, ensuring clean mating surfaces and correct orientation. Use manufacturer-recommended seals, clamps or adhesive where applicable, and follow appliance and local building regulations for flue installation, clearances and support spacing. Check for straight alignment and proper slope if condensate drainage is required, and perform a leak and draft test after installation.
Usage recommendations
Use the SpiroFlex polypropylene flue pipe with compatible PP fittings and seals designed for flue applications. Avoid exposure to open flame or temperatures above the material’s rated range. For gas appliance connections, follow appliance manufacturer instructions and local codes; installation by a qualified technician is recommended.
