Flat Face Socket Weld Flange is a type of flange that is welded directly to a pipe end using a socket weld. This type of flange has a flat face and is used in applications where the pressure is relatively low. They are commonly used in industries such as the food and beverage industry, as well as in hydraulic systems. The main advantage of this flange is that it allows for easy alignment of the pipe and flange during installation, making it quick and straightforward.