A pin lug fitting is a type of hose coupling that is commonly used in low-pressure applications, such as irrigation systems, fire hoses, and pumps. The function of a pin lug fitting is to connect hoses or pipes together securely, so that fluids or gases can flow between them without leaking or being lost.
Pin lug fittings consist of two parts: a male fitting and a female fitting. The male fitting has a round, smooth end with a raised ring or "pin" around the circumference. The female fitting has a recessed groove or "lug" that is designed to fit over the pin on the male fitting. When the two fittings are pressed together, the lug slides over the pin, creating a tight, secure connection.
Pin lug fittings are known for their ease of use and reliability. They are simple to install and remove, and they provide a strong, leak-proof seal. They are also lightweight and relatively inexpensive, which makes them a popular choice for many applications. However, they are not suitable for high-pressure or high-temperature applications, as they may not be able to withstand the stress and may leak or fail.