PSI Original LINK-SEAL® Modular Seals

Fields of Application

LINK-SEAL® Modular Seals are designed for a wide range of applications. LINK-SEAL® Modular Seals can be used wherever annular spaces need to be reliably sealed. Main fields of application:

  • Wall penetrations
  • Tank embedding
  • Casing pipe seals


  • High quality rubber parts  ensure  longest  lifetime
  • Potable water-, oil-, fuel-, solvent-, and high temperature-resistant versions available upon request
  • Safe positioning inside walling
  • Perfect even for retrofitting
  • Easy and quick installation thanks to pre-assembled modules
  • Choice of zinc-plated or S316 (V4A) stainless steel bolts
  • Different colours for different rubber qualities
  • Electrically isolating
  • Hydrostatic sealing against pressing water
  • Original product with longest lifetime experience on the market

The principle

The radial expansion of the rubber ensures a permanently pressure tight and secure sealing of the annular space. For very thin-wall plastic pipes e.g. pre-insulated, flexible and corrugated pipe systems, a PSI Compakt seal type FW is recommended.

Implementation KTW/W270*

The KTW/W270 version is used whenever the seal comes into contact with potable water such as such as elevated tanks and potable water tanks, etc.

  • Temperature resistance from -40 °C to +80 °C
  • Pressure tight up to 5 bar

* Elastomer tested in accordance with KTW and W270