John Guest Reducer

The John Guest Reducer is an essential component in compressed air systems, designed to seamlessly connect pipes of different sizes. Its superior design and build quality make it a perfect choice for reducing pipe diameters in a wide range of pneumatic applications.

• Efficient Design: Enables the connection of differing pipe sizes, ensuring a smooth transition and maintaining optimal airflow.
• Quality Construction: Crafted from durable materials, the reducer is designed to withstand the rigours of industrial and commercial use.
• Easy Installation: Simplified push-fit connection eliminates the need for complex tools or procedures, significantly reducing installation time and effort.
• Secure Fit: Ensures a tight, leak-free connection that maintains system integrity and performance.
• Wide Application Range: Suitable for various applications including air, inert gases, and vacuum systems.

• Product Codes: PM061512E, PM061815E, PM062215E, PM062218E, PM062815E, PM062822E
• Available Sizes: 15mm x 12mm, 18mm x 15mm, 22mm x 15mm, 22mm x 18mm, 28mm x 15mm, 28mm x 22mm
• Material: Acetal Copolymer with Nitrile O-Ring.
• Temperature Range: Suitable for temperatures from -20°C to +70°C, ideal for various environmental conditions.
• Pressure Rating: Designed to handle air and pneumatics piping systems up to 10 bar.
• Compatibility: Works effectively with nylon, powder-coated aluminium, LLDPE tubing, as well as copper, PEXa, and other soft metal pipes.
• Applications: Optimal for air, inert gases, vacuum applications, and potable liquids.

Installing a John Guest Reducer is designed to be straightforward and user-friendly, following these simple steps:

1. Cutting the Pipe: Ensure both pipes (the larger and smaller ones) are cut squarely. This is critical for a proper fit. Use a John Guest pipe cutter for rigid nylon pipes. For aluminium pipes, utilise aluminium pipe cutters. After cutting, remove any burrs or sharp edges to avoid damaging the O-Ring. This step is important to maintain the quality of the seal.
2. Making the Push-Fit Connection: Slide the larger pipe into one end of the reducer and the smaller pipe into the other end. Push each pipe up to the pipe stop in the reducer. Make sure the pipes are aligned correctly within the reducer to ensure an effective and leak-free connection.
3. Checking the Connection: After inserting the pipe, pull it slightly to ensure the connection is secure. This test confirms that the fitting is properly engaged. Before using the system, conduct a thorough test to ensure there are no leaks and that all connections are secure.
4. Disconnecting the Fitting: Ensure the system is depressurised before attempting to disconnect. Push the collet towards the fitting to release the pipe. This step is crucial for a smooth disconnection. Carefully remove the pipe from the fitting.

Key Features / Tech Specs:

• Material: Acetal
• Medium: Air
• Working Pressure: 10 bar/145 psi at 23°C
• Working Pressure: 7 bar/101 psi at 70°C
• Working Temperature: -20°C - 70°C

Useful Info:

It is highly recommended that all fittings are pressure tested before use.

Do not use fittings with damaged or rough-edged pipe or tubing.

John Guest recommend using cleaners and sanitising agents that are above ph4 and low in hypochlorite levels

IMPORTANT: The technical data given on this website is for preliminary information purposes only and is published without guarantee. All line drawings are for illustrative purposes only and should not be regarded as wholly accurate in every detail. We reserve the right to withdraw or to alter the specification of any product without notice. For more information, please consult our Terms of Business.

If you require any further information, our excellent customer service team is here to help so please call us on 01794 835835.