AN Unions, Couplers & AN Fittings

What Does a Female Coupler Do?

A female coupler, also known as a female union fitting or AN (Army-Navy) female coupler, is an essential component in fluid transfer systems, particularly in the automotive industry. Its primary function is to connect two male AN fittings or hoses securely. Female couplers are designed with internal threads that mate with the external threads of male AN fittings.

These couplers play a crucial role in creating leak-free connections in various automotive applications, including fuel systems, oil systems, and hydraulic systems. They are available in different sizes and materials to accommodate specific fluid transfer needs.

What Is the Difference Between Male and Female Couplers?

The main difference between male and female couplers lies in their design and purpose. Male couplers have external threads and are designed to be inserted into female fittings. In contrast, female couplers have internal threads and are designed to accept male fittings.

When assembling fluid transfer systems, male couplers are typically used on hoses and components, while female couplers are used as connectors on pipes or other fixed parts of the system. The combination of male and female couplers allows for secure and sealed connections, preventing leaks and ensuring the efficient flow of fluids.

How Much Do AN Union Couplers Cost?

The cost of AN union couplers can vary depending on factors such as the size, material, and brand. Generally, standard AN union couplers are relatively affordable and can cost between $5 and $20 each. However, for specialized or high-performance applications that require precision engineering and materials like stainless steel or aluminum, prices may be higher.

It's essential to choose the right AN union couplers that match your specific automotive needs, as they are critical components in fluid systems that demand reliability and leak-free performance.