MSS SP-25 Pipe Flanges | McMaster-Carr

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About Pipe and Fittings

Measure your pipe and fittings to identify their pipe size, thread size, schedule, and thread type. Then, find compatible components.

Metal Pipe and Pipe Fittings

Low-Pressure Steel Threaded Pipe Flanges

These flanges are for low-pressure applications in noncorrosive environments.

Low-Pressure Steel Threaded Pipe
Flanges for Low Temperatures

Use these Pressure Class 150 pipe flanges in low-pressure lines where temperatures drop down to -40° F.

High-Pressure Steel Threaded Pipe Flanges

Also known as Pressure Class 1500 steel flanges, these have the strength to handle high pressures.

Low-Pressure Steel Unthreaded Pipe Flanges

Bolt two flanges of the same size together with a gasket to create an access point in a pipe line.

Extreme-Pressure Steel Unthreaded Pipe Flanges

For excellent strength in extreme-pressure applications, choose these heavy duty Pressure Class 1500 flanges.

High-Pressure Stainless Steel
Unthreaded Pipe Flanges

Use these heavy duty forged flanges for high-pressure applications.

Metal Pipe and Pipe Fittings

Low-Pressure Steel Threaded Pipe Flanges

Low-Pressure Steel Threaded PipeFlanges for Low Temperatures

High-Pressure Steel Threaded Pipe Flanges

Low-Pressure Steel Unthreaded Pipe Flanges

Extreme-Pressure Steel Unthreaded Pipe Flanges

High-Pressure Stainless SteelUnthreaded Pipe Flanges

Low-Pressure Steel Threaded Pipe
Flanges for Low Temperatures

High-Pressure Stainless Steel
Unthreaded Pipe Flanges