Slip-on flanges, abbreviated as SOF, are designed to slip over the outside of pipe, long-tangent elbows, reducers, and swages. The flange has poor resistance to shock and vibration. It is easier to align than a weld neck flange.

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Slip-On Flange Sizes - 1/2" through 24"
	Raised Face & Flat Face ANSI Class 75, Industry Standard (in) ANSI Class 150, B16.5 (in) ANSI Class 300, B16.5 (in) ANSI Class 400, B16.5 (in) ANSI Class 600, B16.5 (in) ANSI Class 900, B16.5 (in) ANSI Class 1500, B16.5 (in) ANSI Class 2500, B16.5 (in)		Ring Type Joint ANSI Class 150, B16.5 RTJ (in) ANSI Class 300, B16.5 RTJ (in) ANSI Class 400, B16.5 RTJ (in) ANSI Class 600, B16.5 RTJ (in) ANSI Class 900, B16.5 RTJ (in) ANSI Class 1500, B16.5 RTJ (in) ANSI Class 2500, B16.5 RTJ (in)