Sealey High Flow Couplings Guide
High-flow compressed-air couplings are designed to reduce restriction where air tools or equipment need greater airflow than standard fittings can comfortably deliver. This guide groups Sealey high-flow couplings so you can compare connector formats and sizes for workshop air systems.
Choosing high-flow air couplings
Use the points below as a practical starting point, then check the individual product page for the full technical information before ordering.
- Confirm the coupling profile matches the plugs already used on the hose and air tools.
- Check thread size and type before connecting the coupling to regulators, hoses or equipment.
- Make sure the compressor, hose and fittings can all supply the airflow required by the tool.
- Inspect couplings for wear, leakage and damaged seals as part of routine air-system maintenance.
Products covered in this guide
Open any product below to view its individual description, specification and current availability.
Sealey AC23 | PCL Coupling Body Male 1/2″BSPT
Sealey AC24 | PCL Screwed Adaptor Female 3/8″BSPT – Pack of 2
Sealey AC25 | PCL Screwed Adaptor Male 3/8″BSPT – Pack of 2
Sealey AC26 | PCL Screwed Adaptor Male 1/2″BSPT – Pack of 2
Sealey AC27 | PCL Adaptor Tailpiece 1/2″ Bore Hose – Pack of 2
Sealey AC28 | PCL Adaptor Tailpiece 3/8″ Bore Hose – Pack of 2
Sealey AC89 | PCL Screwed Adaptor Female 1/8″BSPT
Sealey AC90 | PCL Non-Corrodible Coupling Body Female 1/4″BSPT
Sealey AC91 | PCL Non-Corrodible Coupling Body Male 1/4″BSPT
Sealey ACH01 | High Flow Coupling Body Male 1/4″BSPT
Sealey ACH04 | High Flow Screwed Adaptor Male 1/4″BSPT – Pack of 5
Sealey ACH13 | High Flow Coupling Body Female 1/4″BSPT
Sealey ACH18 | High Flow Screwed Adaptor Female 1/4″BSPT – Pack of 5
Sealey ACH19 | High Flow Screwed Adaptor Male 3/8″BSPT – Pack of 5
Sealey ACH55 | High Flow Twin Coupling Body Female Thread 1/4″BSPT
Sealey ACH62 | High Flow Coupling Body Male 3/8″BSPT
Sealey ACH63 | High Flow Coupling Body Male 1/2″BSPT
Sealey ACH64 | High Flow Coupling Body Female 3/8″BSPT
Sealey ACH65 | High Flow Coupling Body Female 1/2″BSPT
Sealey ACH68 | High Flow Screwed Adaptor Male 1/2″BSPT – Pack of 5
Sealey ACH69 | High Flow Screwed Adaptor Female 3/8″BSPT – Pack of 5
Sealey ACH70 | High Flow Screwed Adaptor Female 1/2″BSPT – Pack of 5
Product specifications and compatibility can vary between models. Always check the individual product page before ordering.
Frequently asked questions
Useful checks before selecting from this product range.
How do I choose the right Sealey High Flow Couplings?
Start with the intended application, then compare the dimensions, capacity, specification and compatibility shown on the individual product pages. Use the exact model or part number where the product is equipment-specific.
Are all Sealey High Flow Couplings products interchangeable?
No. Similar-looking products can differ in size, rating, fitment or intended use. Check the individual specification before ordering and do not assume that one model can directly replace another.
What should I do if I am unsure which product I need?
Use the product code, equipment model and application details as your reference. If you are still unsure, contact the Tanair team before ordering so the relevant information can be checked.
Need help choosing?
If the correct option is not obvious from the product information, contact Tanair with the model, part number or application details.
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