Series CV 173 | Expander

Part Number

CV 173


Aluminium & Stainless Steel


The Series CV 173 Koenig expander plug seals drilled holes with complete reliability.

Expander technology forms a complete metal-to-metal seal as the stainless steel ball is pressed into the aluminium sleeve.

The 100% metal-to-metal seal removes the need for any sealants, adhesives, or waste. Which reduces lifetime costs of the seal and improves sustainability.

Product Highlights

  • 100% leak-proof
  • Complete metal-to-metal seal
  • Suitable for counter bored holes only

Technical Specs


Aluminium 2024-T4, QQ-A 225/6


Stainless Steel, AISI 302/304, Wax Film Lubrication (Diameter Dependant)

Dimensions In


Size Range & Pressure

Up to 210 Bar (3000 psi) From 3.0mm - 12.0 mm


For more information on the Koenig range, to chat about an application or to request an engineer to call or visit, please don’t hesitate to call or fill out the below form.

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