FAQ

The raised face is intended to decrease the surface area of the seal, thus concentrating the surface pressure applied when mating the flange. The result is a stronger seal. The raised face has a machined serrated finish that will bite into the gasket whenever pressure is applied.

Weld Neck Flanges. It gives the highest level of joint integrity as it is butt-welded with a pipe. These types of flanges are used in high pressure and temperature application.

ANSI standard flange dimensions are designated as 150, 300, 400, 600, 900, 1500, and 2500, in sizes NPS 1/2 through NPS 24.

The term “flange” comes from the Old French word “flanchir” which means “to bend”. Flanges have long been used to connect pipes and cylinder-shaped fixtures. While primarily used in plumbing, flanges can also be found in train wheels and camera lenses.

The most common flange types are: Welding Neck Flange. Slip-on Flange. Socket Weld Flange.

Flanges are helpful to connect pumps, valves, pipes, and other parts to form a piping system. Flanges are typically welded or thread screwed to connect. The use of flanges allows a person for maintenance and easy repair of the pipe system.