ASME B16.1 Pipe Fittings

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111 Products

How to Identify and Measure Fittings

Pipe size is an industry designation, not the actual size. View information about how to measure threaded and unthreaded pipe and pipe fittings.

FM-Approved Low-Pressure
Cast Iron Threaded Pipe Flanges

Suitable for use in fire-protection applications, these flanges are brittle and can be quickly opened with the strike of a sledge hammer.

High-Pressure Iron and Steel Threaded Pipe Fittings

These fittings can stand up to high-pressure applications. Use them in noncorrosive environments.

FM-Approved Low-Pressure Cast
Iron Unthreaded Pipe Flanges

FM-approved for fire protection applications, these flanges are cast iron, so they're brittle and can be quickly opened by hitting them with a sledge hammer.

FM-Approved Iron Pipe Fittings with Flanged Ends

FM approved, these fittings are suitable for use in fire-protection systems. All have flat-surface flanged ends that only mate to another same-size flat-surface flange, pump, or valve with a gasket to create an access point in a pipeline.

Low-Pressure Aluminum Threaded Pipe Flanges

Also known as Pressure Class 125 flanges, these are for use in low-pressure applications. Flanges are aluminum, which is lightweight with good corrosion resistance.

Aluminum Unthreaded Pipe Flanges

Use these unthreaded flanges in low-pressure applications. Also known as Pressure Class 125 flanges.

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How to Identify and Measure Fittings

Control of Liquids, Gases, and Solids

FM-Approved Low-Pressure
Cast Iron Threaded Pipe Flanges

High-Pressure Iron and Steel Threaded Pipe Fittings

FM-Approved Low-Pressure Cast
Iron Unthreaded Pipe Flanges

FM-Approved Iron Pipe Fittings with Flanged Ends

Low-Pressure Aluminum Threaded Pipe Flanges

Aluminum Unthreaded Pipe Flanges

Flanged Gradual On/Off Valves

How to Identify and Measure Fittings

Control of Liquids, Gases, and Solids

FM-Approved Low-PressureCast Iron Threaded Pipe Flanges

High-Pressure Iron and Steel Threaded Pipe Fittings

FM-Approved Low-Pressure CastIron Unthreaded Pipe Flanges

FM-Approved Iron Pipe Fittings with Flanged Ends

Low-Pressure Aluminum Threaded Pipe Flanges

Aluminum Unthreaded Pipe Flanges

Flanged Gradual On/Off Valves

FM-Approved Low-Pressure
Cast Iron Threaded Pipe Flanges

FM-Approved Low-Pressure Cast
Iron Unthreaded Pipe Flanges