John Guest Reducing Tee
Technical Specification
- Product type: Reducing push-fit tee
- Manufacturer: John Guest
- Body material: Acetal copolymer
- Seal material: Nitrile O-ring
- Maximum working pressure: Up to 10 bar
- Temperature range: -20°C to +70°C
- Connection method: Push-fit, fully demountable
- Compatible pipe materials: Nylon and powder-coated aluminium
- Application media: Compressed air, inert gases, vacuum and potable liquids
- Country of manufacture: United Kingdom
Description
This reducing tee fitting is designed to connect two pipes of equal diameter while branching off to a smaller pipe size, making it ideal for integrating reduced outlets within compressed air and pneumatic systems. It is commonly used in air ring main installations where flow needs to be distributed efficiently without oversizing branch lines.
The push-fit design enables rapid, tool-free installation without the need for heat or sealing compounds, helping to significantly reduce installation time. A precision-engineered collet locking system holds each pipe securely without deformation or flow restriction, while the integrated nitrile O-ring ensures a dependable, airtight seal.
Fully demountable for ease of maintenance, the fitting allows systems to be modified or extended with minimal downtime. Manufactured from tough engineered plastic, it is compatible with John Guest nylon and powder-coated aluminium pipe.
Key Features & Benefits
- Reduced branch connection: Connects two equal pipes with a smaller branch outlet
- Instant push-fit installation: No tools, hot works or sealing agents required
- Demountable design: Enables easy maintenance and system modifications
- Secure collet locking system: Holds pipes firmly without damage or flow restriction
- Airtight sealing: Nitrile O-ring ensures reliable, leak-free performance
- Wide compatibility: Suitable for plastic and soft metal pipe materials
- Multi-application use: Ideal for compressed air, inert gases, vacuum and potable liquids
- Made in the UK: Manufactured and assembled to consistently high quality standards


| SKU | John Guest Code | A (mm) | B (mm) | C (mm) | D (mm) | E (mm) | F (mm) | G (mm) | H (mm) | I (mm) | J (mm) |
| 382523 | PM3018AE | 18 +0.05/-0.10 | 15 +0.05/-0.10 | 84.5 | 42.3 | 31 | 31.1 | 12 | 28.7 | 37.9 | 52.3 |
| 382524 | PM3022AE | 22 +0.05/-0.10 | 15 +0.05/-0.10 | 90.6 | 45.3 | 34.3 | 35.6 | 12.1 | 28.7 | 41.6 | 59.4 |
How to Install a John Guest Reducing Tee
Simplified Installation Process:
- Preparation: Ensure that the tubing or pipes are cut squarely and free from damage.
- Insertion: Insert the tubing into the tee until it reaches the tube stop, using the collet locking system for a secure fit.
- Connection Confirmation: Perform a gentle tug on the tubes to confirm a secure and airtight connection.
- Disconnection: To remove, push the collet squarely against the fitting and withdraw the tube.
- Flexibility: Suitable for diverse environments, including air and pneumatics systems, vacuum lines, and potable liquid systems..
Advantages of the Installation Process:
- No Tools Required: The push-fit technology eliminates the need for tools, making installation quick and hassle-free.
- Time-Efficient: The installation process is significantly faster compared to traditional methods, enhancing productivity.
- Safety: The installation process requires no hot works, reducing risk and ensuring a safer working environment.
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