Metal sealings for collecting devices

Metal sealings are installed in collecting devices made of concrete to make them liquid-tight.

Liquid-tight collecting trays and devices are enclosures serving to meet the requirement for secondary containment under water law. They are used to catch and retain substances hazardous to water leaking from storage tanks and pipes.

Regulatory framework

DIBt grants general construction technique permits (aBG) for metal sealings confirming that both the construction and water law requirements have been met. The construction techniques are thus deemed to be suitable in accordance with Section 63 of the Water Resources Act (WHG).

Please also note the applicable provisions of the federal states following the Model Administrative Provisions – Technical Building Rules (MVV TB).

Application forms

National procedure

A national technical approval (abZ) and/or oder general construction technique permit (aBG) is granted upon application (see Model Building Code (MBO), Sections 16a(2) and18(2) and (4)). This also applies to amendments and supplements to, or renewals of existing approvals and/or construction technique permits.

No formal requirements apply. The following information is needed: name and address of the applicant, description of the product and/or construction technique and its field of use or application, type of decision required (new decision, amendment or supplement to, or renewal of, an existing decision).

Please feel free to use the template below.

Application for a national technical approval and/or construction technique permit (3 pages)

Version: January 2018; Application form

Application for amendment / supplementation / renewal of a national technical approval and/or construction technique permit (4 pages)

Version: January 2018; Application form

Guideline: How to provide drawings for national technical approvals and general construction technique permits (5 pages)

Version: July 2017

  • abZ/aBG
  • Z = new decision | E = supplement | Ä = amendment | V = renewal | G = valid until
    Subject concerned Applicant Decision no. Validity
    from / to
    Flächenschutzsystem aus Stahl zur Abdichtung von Auffangräumen und Abfüllflächen

    PRO H2O! GmbH

    Systeme aus Stahl

    Fachbetrieb WHG

    Jahnstraße 12

    32361 Preußisch Oldendorf

    Z-38.6-154 Z: 06.09.2021
    G: 18.02.2025
    Flächenschutzsysteme mit der Typenbezeichnung "RA"

    DENIOS AG

    Dehmer Straße 58-66

    32549 Bad Oeynhausen

    Z-38.6-180 Z: 16.09.2019
    G: 22.10.2024
    Abdichtungssystem aus Stahl für Auffangräume und Ableitflächen

    Scheven GmbH

    Max-Planck-Straße 77

    40699 Erkrath

    Z-38.6-191 Z: 20.09.2022
    G: 20.09.2027
    Raumauskleidung aus Stahl

    Protectoplus

    Lager- und Umwelttechnik GmbH

    Grüner Kamp 19-21

    24768 Rendsburg

    Z-38.6-232 Z: 20.10.2020
    G: 20.10.2025
    LaCont Flächenschutzsystem aus Stahl für Betonauffangwannen

    LaCont Umwelttechnik GmbH

    Halberstädter Straße 20A

    39435 Egeln

    Z-38.6-279 Z: 28.05.2020
    G: 12.06.2025
    Raumabdichtungssystem "BEKASTEEL S" aus nichtrostendem Stahl für Auffangräume und Ableitflächen aus Beton

    STEULER-KCH GmbH

    Berggarten 1

    56427 Siershahn

    Z-38.6-307 Z: 17.11.2021
    G: 17.11.2026
    Auffangraumauskleidung aus Stahl (AQUAPROTECT Flächenschutz-System)

    LSD Gefahrstofflagertechnik GmbH

    Vistrastraße 15

    14727 Premnitz

    Z-38.6-74 Z: 04.09.2020
    G: 04.09.2025

Holger Eggert
Head of Section – Water Pollution Control: Tanks, Pipes and Safety Systems

Phone +49 30 78730-324
Email hee(at)dibt(.)de

Legal reference documents

Testing, certification, inspection