REF #1061
A Style
PCL A-style air line couplings and adaptors for general compressed air systems. The A-style is the most common coupling format in UK workshops and general industry, and is compatible with the majority of air tools, blow guns and spray guns made for the UK market. Swivel adaptors allow the hose to rotate freely at the coupling point, reducing kinking and torsional stress. Fixed adaptors are used where the connection point is static.
PCL A-style couplings are not interchangeable with European or US coupling formats: if you are connecting to equipment from continental Europe or North America, check the coupling standard before ordering. The fittings in this range are available in male and female BSP thread versions to suit valves, regulators, and air tool inlets. Size your coupling to the flow requirement of the tool rather than the thread size of the port.
-
-
REF #1060
Euro Coupling
From
View Product
£22.31 INC VAT
£18.59 EXC VAT
Understanding PCL A-style air line couplings
The A-style coupling is the UK standard for general compressed air connections in workshops, garages and general industry. It is the coupling found on most UK-market air tools, spray guns, blow guns and hose reels. If your workshop runs on air, there is a good chance it already runs on A-style couplings throughout. The A-style body uses a push-and-release mechanism: insert the male plug, twist to lock, and it is held under pressure. To release, pull back the collar and withdraw the plug.
Swivel adaptors and fixed adaptors serve different purposes. A swivel adaptor, fitted at the hose end where it connects to the air line, allows the hose to rotate freely rather than twisting under working pressure. Over the course of a working day this makes a measurable difference to hose wear and fatigue. Fixed adaptors are used at static connection points such as wall-mounted take-off points or pressure regulator outlets.
Interchangeability between coupling standards is a common source of confusion. PCL A-style is specific to the UK market. European coupling formats, including the Euro coupling used across continental Europe, are physically different and will not connect with A-style equipment. If you are running tools sourced from mainland Europe, check the coupling standard on the tool before ordering adaptors.
Frequently Asked Questions
What is a PCL A-style coupling?
A PCL A-style coupling is the standard compressed air coupling in UK workshops and general industry. It uses a push-and-release mechanism: insert the male plug into the female socket until it clicks, and it locks under pressure. To disconnect, pull back the collar on the socket and withdraw the plug. The A-style is the coupling format found on most UK-market air tools, blow guns and spray guns.
Are A-style couplings compatible with all air tools?
A-style couplings are compatible with air tools that use the same standard. Most air tools sold for the UK market use A-style connections. Tools supplied for the European market may use a different coupling standard, such as the Euro coupling, which is physically different and not interchangeable. Check the coupling type on any imported tool before connecting it to an A-style line.
What is the difference between a swivel and a fixed adaptor?
A swivel adaptor allows the hose to rotate freely at the coupling point during use, preventing torsional stress from building in the hose. A fixed adaptor is rigid: the hose cannot rotate. Swivel adaptors are the right choice for hose connections at the tool end or where the hose sees rotation during use. Fixed adaptors suit static connection points such as wall take-off points.
What thread sizes are A-style couplings available in?
A-style couplings are available with BSP male and female threads. Common sizes are 1/4 BSP and 3/8 BSP for most workshop air tools. Larger BSP sizes are available for higher-flow connections. The thread size should match the port on the tool, regulator or valve it connects to.
Are A-style couplings the same as European couplings?
No. PCL A-style is a UK-specific coupling format. European coupling formats, including the Euro coupling used widely in continental Europe, are physically different and will not connect with A-style equipment. If you need to connect UK A-style equipment to European-format tools, you need an appropriate adaptor; the male plugs and female sockets are not directly compatible.