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Sealing Plugs
KOENIG-EXPANDER® - Sealing Plugs for operating pressure up to 350 bar

HK 030-CK55-111

Installation Instructions

Series HK

Drilled hole

  • The drilled hole must be within the tolerances shown on the preceding data sheets.
  • Holes must be round within 0.05 mm.
  • With hard materials the bore roughness should be from Rz = 10 - 30 µm. for best results.
  • Longitudinal rifles and spiral grooves should be avoided. These influence the sealing effectiveness.
  • The bore must be free of oil, grease and chips.

Setting procedure

  1. Insert the plug in the tool, making sure that the sleeve is against the nosepiece.
  2. After inserting the plug into the hole (making sure the tool is flush to the work surface) activate the tool to expand the plug. The mandrel will break apart when the proper tension has been reached.
  3. When correctly installed, the tapered portion of the mandrel will be below the sleeve surface. A projecting mandrel indicates an over tolerance hole or too thin wall thickness.

Note:

  • The assembly of KOENIG Expander®s should only be done in a clean working area.
  • Sleeve and mandrel of the plug should not be cleaned or lubricated.

Tools

 For trouble free installation of KOENIG Expander®s use the tools and appropriate components according to the data sheet.

Plug removal

With KOENIG Expander® HK Series plug removal is possible.

Procedure:
  1. Drive the mandrel from the sleeve with a punch.
  2. Drill out the sleeve and remove the mandrel.
  3. Bore the hole to the next larger Expander diameter per the data sheet.
  4. Clear chips, remnants of the sleeve, and oil and grease from the bore.
  5. Install a new KOENIG Expander®.
Note: After plug removal always install the next larger size plug.

Subject to technical alterations.
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