ASTM A153 Pipe Flanges | McMaster-Carr

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7 1/2"

11"

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253 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.

Low-Pressure Galvanized Iron
and Steel Threaded Pipe Fittings

The galvanized finish on these fittings provides fair corrosion resistance. Fittings are for use in low-pressure applications.

Medium-Pressure Galvanized Iron
and Steel Threaded Pipe Fittings

A galvanized finish gives these fittings fair corrosion resistance. They have the strength to handle medium-pressure applications.

Medium-Pressure Clamp-On Connectors

Use in medium-pressure applications up to 230 psi.

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How to Identify and Measure Fittings

Pipe and Pipe Fittings

FM-Approved Low-Pressure
Cast Iron Threaded Pipe Flanges

Low-Pressure Galvanized Iron
and Steel Threaded Pipe Fittings

Medium-Pressure Galvanized Iron
and Steel Threaded Pipe Fittings

Medium-Pressure Clamp-On Connectors

How to Identify and Measure Fittings

Pipe and Pipe Fittings

FM-Approved Low-PressureCast Iron Threaded Pipe Flanges

Low-Pressure Galvanized Ironand Steel Threaded Pipe Fittings

Medium-Pressure Galvanized Ironand Steel Threaded Pipe Fittings

Medium-Pressure Clamp-On Connectors

FM-Approved Low-Pressure
Cast Iron Threaded Pipe Flanges

Low-Pressure Galvanized Iron
and Steel Threaded Pipe Fittings

Medium-Pressure Galvanized Iron
and Steel Threaded Pipe Fittings