Construction products detail

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).

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.


new decision
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