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 / toFlächenschutzsystem 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: 18.02.2025Flächenschutzsysteme mit der Typenbezeichnung "RA" DENIOS AG
Dehmer Straße 58-66
32549 Bad Oeynhausen
Z-38.6-180 Z: 16.09.2019
G: 22.10.2024Abdichtungssystem aus Stahl für Auffangräume und Ableitflächen Scheven GmbH
Max-Planck-Straße 77
40699 Erkrath
Z-38.6-191 Z: 20.09.2022
G: 20.09.2027Raumauskleidung aus Stahl Protectoplus
Lager- und Umwelttechnik GmbH
Grüner Kamp 19-21
24768 Rendsburg
Z-38.6-232 Z: 20.10.2020
G: 20.10.2025LaCont Flächenschutzsystem aus Stahl für Betonauffangwannen LaCont Umwelttechnik GmbH
Halberstädter Straße 20A
39435 Egeln
Z-38.6-279 Z: 28.05.2020
G: 12.06.2025Raumabdichtungssystem "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: 17.11.2026Auffangraumauskleidung aus Stahl (AQUAPROTECT Flächenschutz-System) LSD Gefahrstofflagertechnik GmbH
Vistrastraße 15
14727 Premnitz
Z-38.6-74 Z: 04.09.2020
G: 04.09.2025
