Air Hose Fittings

Air Hose Tail Sizes

Match Both Ends of the Hose Tail

A hose tail has two different sizes to check: the BSP thread that connects to the equipment, and the hose barb that fits inside the flexible hose.

Check the Existing Thread Before Ordering

A male BSP hose tail screws into a compatible female threaded port. A female BSP hose tail screws onto a compatible male thread.

If the existing connection is difficult to identify, send us a photograph and the thread size before ordering.

Use the Correct Hose Clip or Clamp

Once the hose is pushed fully onto the barb, it should be retained using a suitable clip or clamp for the hose type, outside diameter, pressure and application.

• Match the hose barb to the hose internal diameter
• Match the clip or clamp to the hose outside diameter
• Use components suitable for the system pressure and operating environment
• Inspect the connection after pressurising and check for air leakage

Avoid Restricting the Air Line

Hose, fittings and couplings all contribute to the available airflow. For higher-demand pneumatic tools, using a hose tail or connection that is too small can add unnecessary restriction and pressure drop.

Complete the Air Hose Assembly

Alongside hose tails, Compressed Air Systems UK supplies O clips, Jubilee clips, pushfit fittings and quick-release couplings for compressed-air systems.

Quick-release profiles such as PCL and Euro are not automatically interchangeable, so check the coupling profile as well as the thread size when connecting to existing equipment.