John Guest Nylon Compressed Air Pipe

• Material: Nylon
• Application medium: Compressed air
• Manufacturer: John Guest
• Available sizes: 12mm to 28mm
• Standard lengths: 3 metre straight lengths
• Maximum working pressure: Up to 15 bar, temperature dependent
• Temperature range: -20°C to +65°C
• Installation support spacing: Every 800mm
• System type: Air ring main and pneumatic distribution systems

Designed specifically for compressed air ring main systems, this nylon pipe provides a lightweight and flexible alternative to traditional metal air pipework. It is well suited to workshops, factories and industrial environments where clean, dry air distribution is required.

Compared to aluminium air pipe systems, nylon offers a lower pressure rating, typically between 7 and 15 bar depending on operating temperature, making it ideal for many standard pneumatic applications. The material is hardwearing, corrosion resistant and easy to handle on site, reducing installation time and effort.

The pipe is fully compatible with John Guest push-fit connectors, allowing for quick system modifications and expansions without the need for solvents, adhesives or specialist tools. Due to the bespoke and technical nature of this product, all sizing and application details should be carefully checked prior to ordering, as cut pipe lengths cannot be returned.

• Purpose-designed for compressed air: Engineered specifically for pneumatic air ring main systems
• Lightweight nylon construction: Easier handling and installation compared to metal pipework
• Temperature and pressure rated: Suitable for up to 15 bar depending on operating temperature
• Push-fit compatibility: Works seamlessly with John Guest fittings for fast, clean installation
• Corrosion resistant: Will not rust or degrade in typical workshop or industrial environments
• Flexible installation options: Allows for expansion bends and adaptable routing on longer runs

1. Preparing for Installation: Understand that thermoplastics like nylon behave differently from steel pipes. They expand more, requiring a flexible method of installation to accommodate this expansion. Avoid constraining the pipe at both ends to prevent buckling and stress.
2. Mounting and Clips: Install the horizontal pipe clips first. Attach clips to vertical pipes only after applying a small amount of pressure to the system to ensure correct positioning. Nylon pipe work is lighter than steel, so the mountings need not be as robust. John Guest connectors simplify modifications without the need for solvents or adhesives.
3. Expansion Considerations: For long pipe runs, use an expansion bend to accommodate pipe expansion. Maintain approximately 10cm distance between the wall and the pipe around columns or pillars, and keep a 400mm distance between the fittings and the pipe clip.
4. Air Quality: To ensure clean, dry air at the outlets, which is vital for the performance and longevity of ancillary equipment, install a filter in the system and use John Guest Water Trap Tees to trap any condensate residue.
5. Choosing Pipe Size: Select the pipe and diameter based on the required flow and pressure drop. Refer to the provided flow rates for guidance, considering both nylon and aluminium pipe options​​.