A guide to quick release couplings

Quick release couplings are an essential part of the manufacturing process, regardless of manufacturer, all quick connect/ disconnect couplings have two common parts: a plug & a socket.


Our latest blog provides you with a guide to the couplings, how they can be used and their applications.



What are quick release couplings?

Quick release couplings are used to provide fast and easy connection and disconnection of fluid or air lines. Also known as quick connects, they are used to replace fitting connections that would require tools to assemble and disassemble.



How does a quick release coupling work?

They are designed with a spring loaded ball latching mechanism which automatically locks the two halves of the fitting together when they are pushed together. To release the connection, the sleeve is pulled back and the balls are unloaded to release the connection. The quick disconnect advantage is that this can be done quickly and by hand.



What applications are they used in?

The applications of quick release couplings can be found in many industries. These are essential components in connecting or disconnecting any mechanical lines.  You can find the use of quick release couplings in any kind of distribution system such as water, steam, vacuum, air, oil etc. When such systems require frequent connection and disconnection, the use of such a connector is essential for any fluid or system that flows through a line. The disconnection of such lines generally involve considerable amount of fluid loss. You can find straight through, single shut off and double shut off couplings.



Advantages of quick release couplings

The use of quick release couplings can ease and speed up the job and save a lot of money as well. Its use is as easy as connecting an electrical equipment for operation. As a result, they increase the output of the system and reduce its downtime. These devices reduce the demand of labour in installing and operating such systems. They also eliminate the use of screws and valves in a hydraulic or pneumatic system. Owing to this, the systems making use of such devices save a lot on initial installation and maintenance involved in repairing and replacing the valves and screws. With its use, spillage of costly and dangerous liquids and other fluids can also be prevented. This contributes to a cleaner environment, making way for a safe working environment, this can also minimize and prevent the loss of hydraulic and other fluids that are quite expensive.



How to install a quick release coupling

  • Before installation make sure that the selected quick release coupling is suitable for the fluid to flow through it and the surrounding atmosphere, with respect to its design (series), materials, seals, working pressure and working temperature.
  • The installation location of the quick connect coupling or of the plug must be selected in such a way that the operator cannot injure himself through dangerous locations in the direct vicinity, e.g. slipping, jamming, contamination or burning.
  • When using hoses, the permissible operating pressure of these hoses at the respective operating temperature must not be exceeded.
  • The hoses must be secured against slipping off the fittings with hose clamps which are suitable for the pressure and for the material of the hose.
  • Protective caps and protected plugs are recommended for uncoupled connectors and couplings, in order to prevent contamination or damage



Maintenance of quick release couplings

  • Quick connect couplings are largely maintenance-free with standard applications and careful treatment, with the correct selection of coupling type and materials.
  • Depending on the operating conditions, we recommend that a custom-made maintenance procedure, covering at least the following points, should be carried out:
    • Lubrication – There is no general lubrication rule. Depending of the application circumstances (e.g. degreasing media) the coupling should be regularly lubricated
    • Non-lubricating fluids (e.g. non-oiled, dry compressed air) also require light, regular lubrication of the coupling.
    • Lustration – In the event of dirt accumulation in the functional area of coupling and plug (compression area, operating elements) this must be cleaned


Periodic maintenance prevents function problems, reduces coupling forces, friction and wear of the sealing which leads to higher lifetime.



For more information on quick release couplings or to chat to our team about how they could help in your next project, get in touch HERE.

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