Couplings & Adaptors

What is the difference between Airflow and Vertex Couplings?

PCL’s Airflow and Vertex Couplings have many similarities; both feature the distinctive blue silicone band with a steel construction and corrosive resistant, both have the same specifications and are compatible with PCL's Standard Adaptors, however the main difference between the Airflow and Vertex is the application they are used for.

Identifying couplings can be difficult, especially if there is no branding etched or printed on the sleeve - and when it comes to adaptors, different profiles do not interchange.

Coupling connections are subject to Health and Safety regulations due to the vibrations associated with air tool use.

Thread sizes are based on trade size rather than actual dimension, which often leads to confusion. Here's our simple guide to measuring a thread and identifying it as a British Standard Pipe (BSP).