Custom, DVS-certified plastic manifold systems for geothermal energy, energy, water and industry
GNV GmbH
GeisaNew on Amplifa
About GNV GmbH
Since 2005, GNV GmbH has been developing and producing custom, DVS-certified plastic manifold systems for demanding construction and industrial projects. The portfolio includes ground probe shafts and manifold shafts in various load classes, PE-100 geothermal manifolds with SEB system for hydraulic balancing, venting and individual probe control, ready-to-install prefabricated PE well shafts as well as manifold pipes for ice storage and energy fences. Production is highly automated using certified DVS welding processes, complemented by custom constructions, fittings, technical accessories, rental machines and on-site installation services. Customers are construction companies, energy suppliers and project developers implementing complex drilling projects. GNV GmbH supplies customers in more than 18 countries and completes more than 6,000 projects annually for over 700 customers.
- Site
- Geisa
- Processes
- Plastic welding (DVS-certified welding processes), Production of ground probe shafts / manifold shafts, Production of geothermal manifolds & SEB system (PE-100 manifolds), Production of well shafts / well system (ready-to-install prefabricated), Automated production of manifold pipes (ice storage & energy fences), Installation (on-site, SEB system optimized for installation), Production of fittings and technical accessories, Custom drawing and quotation
- Materials
- PE-100, PE (polyethylene)
- Certificates
- DVS-certified welding processes
- Founded
- 2005
- Industries
- Geothermal energy, Energy supply, Water, Industry, Construction companies, Project development
- 01
Inquiry and consultation
- 02
Drawing and individual quotation
- 03
Automated production to certified DVS standards
- 04
on-time and installation-ready delivery
- 05
On-site installation
Materials & Processes
PE-100
Material for geothermal manifolds and the SEB system with hydraulic balancing and individual probe control.
PE (polyethylene)
Used for well shafts, manifold shafts and manifold pipes for ice storage and energy fences.
Locations
Geisa
DEHeadquarters and production
- Materials
- PE-100, PE
Products & Components
Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Plastic welding (DVS-certified welding processes)Joining | – | – | – | – | PE-100, PE |
| Production of ground probe shafts / manifold shaftsPlastics | – | – | – | – | PE |
| Production of geothermal manifolds & SEB system (PE-100 manifolds)Plastics | – | – | – | – | PE-100 |
| Production of well shafts / well system (ready-to-install prefabricated)Plastics | – | – | – | – | PE |
| Automated production of manifold pipes (ice storage & energy fences)Plastics | – | – | – | – | PE |
| Installation (on-site, SEB system optimized for installation)Assembly | – | – | – | – | – |
| Production of fittings and technical accessoriesPlastics | – | – | – | – | PE |
Additional services
Reference customers
Quality
Production is carried out using certified DVS welding processes and automated, standards-compliant processes. This ensures reproducible quality under the most demanding technical requirements.
| Evidence | Geisa |
|---|---|
| DVS-certified welding processes |
History
- 2005
Start of development and production of custom, DVS-certified manifold systems by GNV GmbH
- 2025
Named the 100th "Hidden Champion" at the Thuringian ChampionsMEET in Blankenhain on 27 May 2025