GASKET, KLNGR C4401, 1.500" 0.125 THK

The 13850RF125B0150FC is a green Klingersil C-4401 Class 300/400/600 ring face Flange Gasket with a 1.5 inch nominal pipe size, a Class 300/400/600 pressure rating, and a thickness of 0.125 inch. This flange gasket fills the microscopic imperfections in flange faces so the joint holds pressure.

It resists steam and hot water, elevated flange loads, and a broad range of process chemicals. That behavior comes from the compound itself: Klingersil C-4401 is specified for clean release and easy removal at teardown, consistent thickness and density across the sheet. Applications involving strong oxidizing acids in some grades or service beyond the published pressure-temperature envelope call for a different compound.

Maintenance and OEM teams specify it across steam and hot water systems, chemical processing, and pulp and paper.

This item is sold individually under part number 13850RF125B0150FC. As always, verify media compatibility and operating conditions against the requirements of your specific application. APG supports cross-referencing from drawings, samples and competitor numbers when a listed size is not an exact fit.