Which piping component is used to connect two sections of pipe and is typically bolted with a flat face?

Which piping component is used to connect two sections of pipe and is typically bolted with a flat face?

• A. Reducer
• B. Flange
• C. Elbow
• D. Tee

Answer: (B)

When joining two sections of pipe, you want something that sits between the ends, provides a sealed connection, and can be easily taken apart for maintenance. A flange fits that role: it’s a flat-faced ring with bolt holes that mates with a matching flange on the adjacent pipe. Bolts pass through the holes and clamp the faces together, with a gasket between them to create a leak-tight seal. The flat-face type is particularly straightforward because the smooth contact surface ensures even pressure and reliable sealing when the bolts are tightened. The other options serve different purposes. A reducer changes the pipe diameter, not the joining method. An elbow redirects flow with a bend. A Tee adds a branch to the line. None of those are simply bolted, flat-faced joints used to connect two pipe sections with a gasket.

When joining two sections of pipe, you want something that sits between the ends, provides a sealed connection, and can be easily taken apart for maintenance. A flange fits that role: it’s a flat-faced ring with bolt holes that mates with a matching flange on the adjacent pipe. Bolts pass through the holes and clamp the faces together, with a gasket between them to create a leak-tight seal. The flat-face type is particularly straightforward because the smooth contact surface ensures even pressure and reliable sealing when the bolts are tightened.

The other options serve different purposes. A reducer changes the pipe diameter, not the joining method. An elbow redirects flow with a bend. A Tee adds a branch to the line. None of those are simply bolted, flat-faced joints used to connect two pipe sections with a gasket.