Koenig Sealing Plugs

The Worlds Leading Sealing System

The KOENIG - Expander Plug is a unique system to seal holes with absolute integrity in various types of hydraulic and pneumatic components such as controls, valves, regulators, relays, cylinders, motors, presses, pumps, etc., which have one thing in common. That is that hydraulic fluid or gaseous medium under pressure flow through channels in the device. Many times these channels must be drilled from outside to connect internal passages. These drilled holes must then be sealed pressure tight to operate the device and prevent leaks. A number of other sealing methods can be used but can often be more costly and less reliable.

The KOENIG - Expander Plug provides a safe, quick, leakproof, and low cost method for sealing cross-drilled holes. It ensures peak performance with a comfortable safety margin even in extreme applications. They are available in five styles and in different materials.

All drawings for these items are available in our catalogue on the download section of the site.