The Benefits of Safety Couplers

When it comes to compressed air systems, safety is of the highest importance. This is where air safety couplers come into play. That’s because they offer a range of benefits that make them different from standard air couplings. In this article, we’ll explore the differences between air safety couplings and standard air couplings, the advantages they bring, and the various types available.


What are Safety Couplings?

Air safety couplers do the same job as standard air couplings, but with one major difference. Even though they can look very similar to standard couplings, safety couplings have a 2-stage release system. The first step is to release the air pressure from the coupling and the second stage is to disconnect the coupling. What this does is ensure your air hose does not whip around with the built up air pressure and cause an injury to you or others around you. Additionally, it prevents damage to nearby equipment or the hose of fitting itself.

A labelled image showing what air hose whip is. A person has released an air hose from a standard air coupling which makes the air hose thrash around uncontrollably.


Standard Air Couplings Vs Safety Couplings

To get a better understanding of air safety couplings, we need to see how they differ from regular air couplings. Air safety couplings make safety a priority, whereas standard air couplings are primarily designed to perform tasks efficiently. In addition, when using air safety couplers you are eliminating the risk of hose whip which can cause accidents.

There are a few different types of safety couplers, here are a few of them:


Safety Sleeve Couplings

Sleeve couplings work by pulling back the sleeve of the coupling once to release the air between the air hose and coupling, and then pulling the sleeve back again to release the coupling from the hose. Take a look at the video below to demonstrate this.

Video screenshot of a demonstration between the release of a standard air coupling and a safety sleeve coupling

Explore Safety Sleeve Couplings from PCL and Parker

Both PCL and Parker have a fantastic range of sleeve design safety couplings. For example, PCL’s Safeflow couplings are available in many different sizes in male, female and hosetail variations. Click the image below to view the range.

Image banner showing PCL's safeflow couplings - click the image to browse the range


Parker Rectus Safety Sleeve Couplers:


Push Button Couplings 

Push button safety couplings work with 2 clicks of a button. The first click releases built up air from within the airline hose and then the second press safely releases the coupling from the hose. As a demonstration, this short video from our partner PCL, shows exactly how this works with their new range of push button safety couplings (which you can purchase here). 

Video screenshot of the new push button safety couplings from PCL

Push Button Couplers from Prevost, PCL and Parker

Push button safety couplers are provides by some of the world’s leading pneumatic manufacturers including Prevost, PCL and Parker.

There are generally 2 types of push button couplers: T19 which is the standard UK size for couplings & adaptors, or T25 which is the Euro flow size (often used with air compressors as more air flow can move through the larger bore size of the coupling).

T19 Standard Safety Button Couplings

PCL Push Button Safety Couplings:

Prevost T19 Safety Button Range:


Prevost 19 BSI Safety Couplings

Prevost BSI Hose Tail Coupling


Prevost 19 BSI Safety Couplings

Prevost BSI Female Coupling


Prevost 19 BSI Safety Couplings

Prevost BSI Male Coupling


T25 Euro Flow Safety Button Couplings

Parker Rectus Tema Safety Button Couplers:


Parker Rectus T25 Safety Couplings

T25 Hosetail Euro Push-Button Safety


Parker Rectus T25 Safety Couplings

T25 Female Euro Push-Button Safety


Parker Rectus T25 Safety Couplings

T25 Male Euro Push-Button Safety


Prevost T25 Safety Button Couplers:


Prevost 25 ESI Safety Couplings

Prevost ESI Male Coupling


Prevost 25 ESI Safety Couplings

Prevost ESI Hose Tail Coupling


Prevost 25 ESI Safety Couplings

Prevost ESI Female Coupling



Twist and Lock Safety Couplings

Twist and lock safety couplings work by simply twisting the coupling one way to release the pressure from the coupling, and then twisting the other way to disconnect it from the hose.

Our twist and lock couplings are available in T25, T24 and T30 ranges from Parker Legris.

Advantages of Air Safety Couplers

Two-stage safety air couplings offer several advantages compared to standard air couplings, making them a valuable choice in various applications. Here are the key advantages of the safety couplings:

  • Enhanced Safety: As mentioned previously, the primary advantage of safety air couplings is in the name itself – safety. They incorporate a two-step disconnection process, which significantly reduces the risk of accidental hose whipping and the sudden release of compressed air. This design helps protect both equipment and personnel, reducing the risk of injuries and accidents in the workplace.
  • Minimised Air Loss: Safety couplings reduce the amount of air that escapes when disconnecting the coupling. In standard air couplings, air pressure can be released suddenly, causing inefficiency and energy wastage. Therefore, it’s the safety coupling’s job to allow a controlled release, saving energy and keeping the system running well.
  • Versatility: Most safety couplings are available in a range of styles and configurations to suit various applications, from low pressure to high pressure systems and in various different types and sizes. 

Summary: Air Safety Couplings

In a nutshell, air safety couplings are a key part of any compressed air system. They really focus on safety and efficiency. They offer a bunch of benefits, like automatic shut-off, ease of use, and compatibility features that regular air couplings don’t have. You’ve got plenty of choices to pick from, so you can find the air safety couplings that fit your needs perfectly. This means your workspace will be safer and work more efficiently.

If you need any help or advice about air couplings, please don’t hesitate to give us a call: 01932 348777

Browse Safety Couplings
A thumb pushing down on the blue button on a safety coupling from PCL


Ready to read more? Read our ultimate guide to air fittings (couplings & adaptors)