<1 PPM =
Unmatched Performance
<1 PPM =
Unmatched Performance
Expert Engineering =
Design-In Support
5+ Billion Installed =
Proven Reliability
KOENIG EXPANDER® plugs seal drilled holes with best-in-class reliability.
KOENIG RESTRICTORS® provide precise flow control in fluid systems.
Precision KOENIG CHECK VALVE® parts:
Use our Product Selector to quickly identify the best expander plug and flow restrictor component based on key specifications.
The original inventor of the one-piece sealing solution, SFC KOENIG has led the industry in quality, reliability and performance since 1927.
Wherever safe, secure sealing and flow control is needed, SFC KOENIG is there.