What is a coupler?

Pneumatic quick couplers, also known as air couplers or pneumatic quick disconnects, are primarily used for pneumatic applications. Couplers connect air tools, hoses or gears to compressed air supplies. Couplers are also used with other gases and be used with low-pressure fluids. 

There are a variety of couplers such as general-purpose or manual connect, push-to-connect and special purpose. The coupler half has a shut-off valve that is automatically opened when a mating nipple is injected and automatically closes when the nipple is removed.  Pneumatic couplers come in a variety of seals, sizes, thread sizes, connections, grades and materials. 

What are the features of a coupler?

• Pushes the plug into the socket for simple & secure connection
• Reduces connection time and improves efficiency
• Has a low connection resistance, allowing easier connection or disconnection
• All sockets, plugs and tubes can be connected in one push to connect operation

What are pneumatic couplers used for?
They are used to attach onto the end of hoses and allow them to connect speedily and effortlessly to various types of equipment.

The coupler is divided into 2 main categories:-

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