GASKET, KLNGR C4401, 9.000", 150# RF

The 13850RF125A0900 is a green Klingersil C-4401 Class 150 ring face Flange Gasket built to a 9 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.

It resists steam and hot water, elevated flange loads, and hydrocarbons. Klingersil C-4401 is known for reliable sealing on flanges with modest surface finish, clean release and easy removal at teardown. It should not be specified for service in service beyond the published pressure-temperature envelope or strong oxidizing acids in some grades.

Maintenance and OEM teams specify it across power generation, refining, and steam and hot water systems.

Stocked as 13850RF125A0900 and sold individually. Check the compound against your process media, pressure and temperature before committing to a design.