4.000" 150# RF (WHD)

The 13850RF125A0400FC is a green Klingersil C-4401 Class 150 ring face Flange Gasket measuring a 4 inch nominal pipe size, a Class 150 pressure rating, and a thickness of 0.125 inch. This flange gasket fills the microscopic imperfections in flange faces so the joint holds pressure. Source specification: NPS, 0.125 THK Gasket, Klngr C4401.

Expect good resistance to hydrocarbons, steam and hot water, and a broad range of process chemicals. Klingersil C-4401 is specified for a calendered, compressed fiber structure bound with elastomer, consistent thickness and density across the sheet. It should not be specified for service in strong oxidizing acids in some grades or service beyond the published pressure-temperature envelope.

Typical settings include refining, chemical processing, and power generation.

Stocked as 13850RF125A0400FC and sold individually. Confirm chemical compatibility, pressure and temperature against your own application requirements before installing. If you need a size, durometer or compound that is not listed, APG can cross-reference from a print, a sample or a competitor part number.