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Air Line Fittings Specifications
It is vital that you consider your specific application before purchasing air couplings. Without due consideration given to the seal, material, connection, size, working pressure or temperature of the system you are using, you may purchase a product that is redundant for your requirement. Read the information below to find out more about the different specifications available for air couplings.
Seals
Check the compatibility of your seals with the media you are planning on using. For chemical compatibility, check our guide. Buna Nitrile seals are supplied as standard with Viton available on request.
Materials
All of the fittings come in Nickel Plated Steel & Nickel Plated Brass as standard. However, stainless steel is also available on request (stainless steel offers high resistance to corrosion, and is specifically designed for liquid or aggressive media). Ask us for advice on the fitting material if you’re unsure.
Connections
Consider the type of connection you require, as air line fittings can be:
Male
Female
Hosetail
Sizes
We are able to offer air couplings in the following sizes:
4mm – 13mm
Working Pressures & Temperatures
Our air couplings are highly resilient, and can withstand extreme working conditions.
20°C to +100°C 1 15 bar (230 PSI)
Coded Systems
If the application demands that no systems are ‘cross-connected’, coding is always an option. Please ask us for more details on our coded air line connectors.
What Type of Valve Do I Need?
There are different types of valved (or non-valved) fittings. In this section, we have outlined the different options so you can decide which is best for your application.
Straight-Through/Straight-Thru
These couplings have no shut-off valve and so they offer the greatest possible flow rates since, without a valve, there is no obstruction in the flow path. Fittings with an integrated valve can often experience a certain level of ‘turbulence’ which is avoided with this solution. Straight-through couplings are ideal for liquid media – e.g. water. Before unlocking, the flow must be stopped.
Single Valve Shut-Off
On a single shut-off system, the plug or nipple half is designed ‘straight-through’ without a valve, but the socket half shuts off immediately as soon as the connection is broken. The media stays in one end of the line only. This is an ideal solution for the operation of compressed air tools. It provides the user with more control than a ‘straight-through’ connection.
Double Valve Shut-Off
As the name might suggest, in this solution, shut-off occurs in both halves of the fitting as soon as it is disconnected. Double shut-off valves stop the flow in both the socket and the plug. The media, therefore, remains safely trapped in both ends of the connecting line and none of the media is lost. This option is especially suitable when transferring aggressive media or in sensitive environments where no spills can be tolerated, such as in a clean room.
Air Line Fittings FAQs
What is an Air Line Connector?
Air line connectors are a range of quick-release style couplings specifically designed for use with air tools and air lines. Air couplings are typically used in applications where the lines need to be connected and disconnected frequently, such as where equipment may be mobile or lines need to be broken frequently. These fittings are normally valved with a single shut-off mechanism.
Our range includes ‘standard’ industrial air connectors, which characteristically provide high flow rates. This is especially important when used in compressed air applications since the speed and pressure of the airflow is paramount to the design and function of the equipment. These air couplings are usually used in cleaning equipment, machinery, or hydraulics.
Which Air Line Connector do I Need? Are they Interchangeable?
The fittings we supply are interchangeable with those offered by manufacturers such as:
Rectus
Schraeder
Parker
Hansen
Walther
Tema
If a branded product is already in place, our equivalent air line fittings will be fully compatible. Just match the ‘Series Type’, which should be marked on the side of the fitting.
PLEASE NOTE: The standard airline couplings are not used for breathing air apparatus. Please consult the Sales Office for more information +44 (0)1235 512 500.
How do you Connect Air Hose Fittings?
These couplings are easy to use. They are ‘quick release’ fittings, so connecting and disconnecting them can be done simply and swiftly. In fact, you can usually do this with one hand, without the use of tools. We’re not even showing off! They are lightweight and compact in design.
To create the connection, the plug is pushed into the socket, which makes the sleeve spring forward and automatically lock into place. When disconnecting the fitting, simply pull the sleeve back and the coupling is disconnected immediately.
What is the Best Way to Maintain Air Couplings?
As with all types of couplings and air hose fittings, if the fittings are in frequent use, we would always recommend thorough and consistent maintenance schedules/assembly asset management systems be implemented. We can assist you with advice on this subject and would be happy to help. Call the team on +44 (0)1235 512 500 to find out more.
What are the Applications that Air Line Fittings are Used in?
Our diverse range of air line fittings and couplings means that they are suitable for a wide range of applications, including:
Automotive
Aeronautics
Mobile Hydraulics
Electrical Engineering
Chemical Technology
Safety Technology
Food Technology
Medical Technology
Machinery Construction
Please call us for further information on any product within this range. Our team is experienced and happy to help.
Click the link below to find our FAQs page and discover everything there is to know about Air Line Fittings. Alternatively, you can contact us: