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airline female adaptor

PCL Female Adaptor 1/4" BSP Air Line Fitting Coupling


Genuine PCL standard adaptors with 1/4" BSP female taper thread. Hardened and plated steel for longer life. PCL part number ACA2746.

The PCL standard air line adaptor is suitable for most compressed air line applications. Designed and manufactured alongside PCL couplings, these adaptors have become the benchmark in the UK for quality and reliability.

Used with PCL Vertex, PCL Airflow, PCL Non-Corrodible, PCL Safeflow, Twin-Y-Couplings, Sealey Couplings, Draper Couplings, Rectus 19, CEJN295 and Quick Coupling UK style.

Sizing advice

BSP thread sizes can be confusing; BSP size is not the same size as the physical thread diameter. When measuring BSP male taper threads the measurement should be taken halfway along the length of the thread. BSP female threads are always parallel along the whole length of the thread – see size guide below.

BSP size                 Diameter of thread

¼”           -               13.1mm Approx.

3/8”         -               16.6mm Approx.

½”           -               21.0mm Approx.


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