Technical support

Always a competent answer – Use our know-how and more than 80 years of experience to solve your individual gasket problem.

Technical support

We answer every gasket question


Whether you have a technical question or would like more detailed information about our gaskets, our technical support team is here to help.

Our experienced team supports you in the design and calculation of flange connections with a holistic view of the location to be sealed.

    Our services in detail:

    • Gasket resistance
    • Dimensions
    • Tightening torques
    • Special types
    • And much more

      Do you have a technical question or a specific gasket problem?
      We have solutions and answers ready!

      Tightening torque calculations

      We will be pleased to help you with the calculation of tightening torques of your flange connection on an order-specific basis. The calculation is carried out according to AD 2000 B7 on the basis of our determined gasket characteristics according to DIN EN 13555.

      Scope of Application:

      AD 2000 Leaflet B7 – Bolts

      • Gaskets and bolts that are predominantly subjected to static loads
      • Gaskets that are not subjected to additional (extreme) conditions of abuse
      • For calculation temperatures above 300 °C and more than 40 bar, expansion bolts should be used
      • Shaft diameters greater than 10 mm are not suitable for use
      • At least 4 bolts must be inserted.

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          Kroll & Ziller Germany

          Reisholzstrasse 15
          40721 Hilden

          Kroll & Ziller POLSKA Sp.z oo

          Liściasta 17
          91-357 Lódž

          Kroll & Ziller CZ sro

          Mostecká 85 – Vtelno
          CZ – 434 01 Most