Koenig Expanders

metal-to-metal Hole sealing plugs in the uk

  • Ball / Push Type Plugs
  • Mandrel / Pull Type Plugs

Koenig sealing plugs seal holes with complete reliability. Expansion plug technology forms a 100% leakproof metal-to-metal seal

Koenig Expanders seal holes with complete reliability. Expansion technology forms a tight metal-to-metal seal that’s 100% leakproof.

Koenig drilled hole sealing plugs have revolutionised hole sealing in nearly every advanced industry. 5 billion units have been installed globally with failure rates below 1PPM. From hydraulics and oil rigs to automotive and aerospace applications, Koenig expanders reliably stop holes leaking under high pressures in extreme environmental conditions.


 

All hole sealing products

Koenig Expander Series 173 sealing plus. Aluminium sleeve and Stainless Steel ball.

Series CV 173 | Expander

Sleeve: Aluminium 2024-T4, QQ-A 225/6

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

Pressure: Up to 210 Bar (3000 psi)

LK Pull Type Sealing Plug

Series LK 950 Expander

Sleeve: Case hardened steel, Soft Annealed Gun Finish

Mandrel: Steel, Special Oil Film Lubrication

Koenig Expander Series LK 600 pull-type sealing plug

Series LK 600 | Expander

Sleeve: Stainless Steel, Special Oil Film Lubrication

Mandrel: Stainless Steel, Special Oil Film Lubrication

Pressure: Up to 60 bar

Koenig Expander Series SK 552 long mandrel pull-type sealing plug

Series SK 552 Long Mandrel Expander

Sleeve: Case Hardened Steel, Gun Metal Finish

Mandrel: Heat Treatable Steel, Special Oil Film Lubrication

Koenig Expander Series SK 550 Pull-type sealing plug

Series SK 550 Expander

Sleeve: Case Hardening Steel, Gun Metal Finish

Mandrel: Heat treatable steel, Special Oil Film Lubrication

Koenig Expander Series MB 600 push type sealing plug for drilled holes

Series MB 600 Expander

Sleeve: Stainless Steel 1.4305.

Ball: Stainless Steel 1.4301

Pressure: Up to 450 Bar (6,5000 psi)

Koenig Expander Series MB 600 INCH push type hole sealing plug

Series MB 600 Inch Expander

Sleeve: Stainless Steel 1.4305

Ball: Stainless Steel 1.4301

Pressure: Up to 450 Bar (6,500 psi)

Koenig Expander Series CV 173 Inch push type sealing plug

Series CV 173 Inch | Expander

Sleeve: Aluminium 2024-T4, QQ-A 225/6

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

Pressure: Up to 210 Bar (3,000 psi)

GET IN TOUCH

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