The DDL® GmbH
Implementation technology & sealing systems
For over 20 years we have been developing and manufacturing feedthrough technology & sealing systems – wall feedthroughs, pipe feedthroughs and cable feedthroughs – for the construction industry.
Quality products from DDL®
Our compatible system inserts and sealing packings, as well as our products for pipeline construction, meet every requirement – that’s what we stand for.
Documents & Brochures
Find brochures, flyers, assembly instructions, schematic drawings, test documents and tender texts available for download.
News
New Year’s Eve 2025/26
Company will be closed from Thursday, December 18, 2025 to and including Tuesday, January 6, 2026 read more ›
Holidays in May
Our company is closed on Thursday 01.05.2025 and Friday 02.05.2025 as well as on Thursday 29.05.2025 and Friday May 30,… read more ›
The new DDL website
Experience all the products and information in our new clear design. read more ›