90° Elbows Reducing

What is a 90 degree brass reducing elbow elbow used for in plumbing?

A 90-degree reducing brass elbow is a brass fitting that:

• Changes pipe direction by 90 degrees
• Reduces from one pipe size to a smaller size at the same time

So it performs two functions in one fitting: a turn and a size reduction.

How It’s Configured

Most commonly:

• Female thread (FIP) x Female thread (FIP)
• One side is larger, the other side is smaller

Here is an example:

• 1" FIP × ½" FIP reducing 90° elbow
• One side accepts 1" male pipe
• Other side accepts ½" male pipe

What It’s Used For

• When a larger supply line must turn and step down to a smaller branch
• Saves space and fittings (no separate reducer + elbow needed)

Common in:

• Water lines
• Hydronic heating
• Compressed air
• Light industrial piping

Why Brass?

• Corrosion resistant
• Strong and long-lasting
• Approved for potable water in most applications