The FLKC4401RF125A6 is a Klingersil C-4401 Gasket Kit. This gasket kit simplifies ordering and reduces the chance of a missing item at assembly. Source specification: Stud Flange Kit.
It resists a broad range of process chemicals, steam and hot water, and hydrocarbons. That behavior comes from the compound itself: Klingersil C-4401 is known for reliable sealing on flanges with modest surface finish and a calendered, compressed fiber structure bound with elastomer. It is not the right choice where service beyond the published pressure-temperature envelope or strong oxidizing acids in some grades are present.
It sees regular use in refining, chemical processing, and pulp and paper.
Stocked as FLKC4401RF125A6 and sold individually. Review your operating media and conditions against this specification before installation.
description 6" 150# RF .125" THK C4401
uf_description2 STUD FLANGE KIT
ProductCode Description Gaskets - Kits - Commodity