SFC KOENIG SFC KOENIG, an IDEX Corporation unit, leads global sealing and flow control innovation since 1927 as the original metal-to-metal sealing solution inventor. Products including KOENIG EXPANDER and CHECK VALVE deliver best-in-class performance across automotive, aerospace, hydraulics, and medical applications. SFC KOENIG combines heritage expertise with custom engineering.
Best-in-class sealing and flow control solutions combining century-long expertise with innovation
OEMs in automotive, aerospace, hydraulics, and medical requiring advanced sealing solutions
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Last verified: February 2, 2026
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