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Black ring gasket with raised face for three inch pipe

Zoro Select

Zoro Select BULK-FG-322 Ring Gasket 3" 150 1/16

SKU CH-NNNB-YAK7W

FKM ring gasket fits 3-inch ANSI Class 150 flanges and handles temperatures from -20 to 450 degrees Fahrenheit

  • FKM material resists chemicals up to 450 °F
  • Fits 3-inch Class 150 flanges with 1/16-inch thickness
  • Operates reliably from -20 °F to 450 °F
  • Black ring gasket with 3-1/2-inch inside diameter
  • California Proposition 65 warning for reproductive-harm chemical

3-inch Class 150 Viton Ring Gasket

This Viton ring gasket fits 3-inch pipe and ANSI Class 150 flanges. The FKM material handles temperatures from minus 20 degrees F to 450 degrees F. It has a 3 1/2-inch inside diameter and a 5 3/8-inch outside diameter at 1/16-inch thickness. The black gasket contains no insert or binder material.

Temperature and pressure boundaries

The gasket is rated for a maximum operating temperature of 450 degrees F and a minimum of minus 20 degrees F. ANSI Class 150 defines the pressure envelope for the flange pairing. No hardness rating or metal-detectable feature is provided. The material is not x-ray detectable and includes no mounting hardware.

FKM material compatibility

The single specification that decides fit is the FKM gasket material, which determines chemical resistance for the fluid in the system. Buyers who need a different elastomer or a metal-detectable gasket for food or pharmaceutical lines cannot use this part. The gasket is sold without fasteners or included hardware.

Highlights

  • FKM material resists chemicals up to 450 °F
  • Fits 3-inch Class 150 flanges with 1/16-inch thickness
  • Operates reliably from -20 °F to 450 °F
  • Black ring gasket with 3-1/2-inch inside diameter
  • California Proposition 65 warning for reproductive-harm chemical

Specifications

BrandZORO SELECT

Questions about this item

Which size matches a 3 inch pipe with a 150 class flange?

The gasket is built for a 3 inch pipe size and ANSI Class 150 flanges, with a 3 1/2 inch inside diameter and 5 3/8 inch outside diameter.

What does the 450 degree F maximum temperature mean for daily use?

It indicates the highest continuous heat the FKM material can withstand without degrading, suitable for hot oil, steam or chemical lines up to that limit.

How does the 1/16 inch thickness affect the seal on a raised face flange?

The thin 1/16 inch profile compresses evenly under bolt load, filling the raised face groove without excessive extrusion or blow-out risk.

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