igentäpning

Igentätning is a Swedish term for the process of resealing a component or system after it has been opened, with the goal of restoring leak-tightness to liquids or gases. The prefix igen- indicates repetition, and tätning means sealing, such as with gaskets or sealants.

Common contexts include automotive engines and transmissions, plumbing and heating systems, refrigeration, HVAC, and industrial equipment. It is used when repair work requires joints to be resealed to prevent leaks and maintain pressure.

Techniques vary by application but typically involve cleaning surfaces, inspecting for damage, selecting an appropriate sealing method (new gasket, O-ring, or mechanical seal), and reassembling with correct torque and alignment. Sealants may be used in some cases; others rely on pre-formed gaskets.

Materials include gaskets (rubber, cork, cellulose), O-rings (nitrile, fluorocarbon), sealants, and mechanical seals. Choice depends on fluid compatibility, temperature, and service life.

Quality control often includes leak testing after reassembly, such as pressure decay or helium leak tests. For critical systems, adherence to manufacturer specifications and industry standards is advised.

In English, the concept is usually described as resealing. The Swedish term igentätning reflects the same idea within Swedish technical vocabulary.

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