
Vessels, apparatus, filters, piping and plants made of steel and stainless steel – up to 16 t unit weight

GOH Behälter- und Anlagenbau GmbH
Netphen · StadtallendorfNew on Amplifa
About GOH GmbH
GOH GmbH is a family-owned medium-sized company with two production sites in Germany and around 100 employees. GOH Behälter- und Anlagenbau GmbH, headquartered in Netphen (Siegerland), designs and manufactures plants, tanks, vessels, filters, piping system components, spherical resonators, valve housings and custom constructions made of steel and stainless steel. Production ranges from one-off fabrication to complete assembly in accordance with German and international pressure vessel codes; welding is performed using processes such as manual arc welding, submerged arc welding and MAG/TIG welding on components up to 30 mm wall thickness, 10 m length and 16 t unit weight. GOH Filtertechnik GmbH in Stadtallendorf (around 30 employees) manufactures and distributes pressure vessels and apparatus worldwide, including standard and custom filters for pharma, chemical, petrochemical and aviation applications. The portfolio includes consulting during the planning process, drawing creation, design review and international acceptance. Customers include pharmaceutical, chemical, petrochemical, aviation, drinking water, district heating and LNG/gas industries.
- Site
- Netphen
- Processes
- Fusion welding (111 manual arc welding, 121 submerged arc welding, 135 MAG solid wire, 136, Vessel construction (vertical and horizontal vessels for liquids, gases, solids), Plant engineering (one-off fabrication, pre-assembly, complete assembly), Piping fabrication incl. pipe fittings (tees, reducers, branches, segment bends,, Filter manufacturing (standard and custom filters, pressure vessels and apparatus), Spherical resonators and pulsation dampers at all pressure levels, Valve housing fabrication (mixing of hot/cold gas, use at high temperatures), LNG components for operation at cryogenic temperatures down to -420 degrees Fahrenheit
- Materials
- Steel (materials according to EN 10025), Pressure vessel steel (DIN EN 10028-2+3), Stainless steel (DIN 17440), Steel (EN ISO/TR 15608 group 1.1, 1.2), Stainless steel (EN ISO/TR 15608 group 8.1), heat-resistant steels, Steel and stainless steel (ISO 9001 scope), Structural steel
- Certificates
- DIN EN ISO 9001:2015, EN ISO 3834-2, AD 2000 data sheet HP0 / HP 100R (EN 13445-4), DGRL-0036-QS-1385-22 (DGRL Module D1/H/H1), ASME U-Stamp, Further approvals (UDT TÜV Poland, SVTI TÜV Switzerland, Germanischer Lloyd), AD 2000 data sheet HP0 / HP 100R, DGRL Module D1/H/H1, UDT (TÜV Poland) / SVTI (TÜV Switzerland) / Germanischer Lloyd
- Employees
- ~100
- Industries
- Pharmaceutical industry, Chemical industry, Petrochemical industry, Aviation sector, Drinking water technology, Energy/district heating
- 01
Consulting during the planning process
- 02
Design / drawing creation and design review
- 03
Material procurement (steel, stainless steel)
- 04
Cutting, fabrication and fusion welding (111, 121, 135, 136, 138, 141)
- 05
Pre-assembly / complete assembly
- 06
Non-destructive testing and quality control
- 07
International acceptance and delivery
Materials & Processes
Structural steel
Unalloyed steels according to EN 10025 for steel construction, piping and vessels.
Pressure vessel steel
Materials for pressure vessels and piping according to DIN EN 10028-2+3.
Stainless steel
Corrosion- and acid-resistant steels according to DIN 17440 for vessels, filters and apparatus.
Unalloyed steels (EN ISO/TR 15608)
Weldable base materials of groups 1.1 and 1.2 in accordance with the EN-ISO-3834-2 certificate.
Stainless steel (EN ISO/TR 15608)
Austenitic stainless steels of group 8.1 in accordance with the EN-ISO-3834-2 certificate.
Heat-resistant steels
For valve housings for mixing hot and cold gas at high temperatures.
Materials according to VdTÜV data sheets
Approved materials for piping and pressure vessels in accordance with applicable codes.
Sites

Netphen
DEProduction site for vessel and plant engineering (headquarters)
- Part weight / size
- up to 16 t unit weight, ø max. 2500 mm, length up to 10 m
- Materials
- Steel (EN 10025, DIN EN 10028-2+3), stainless steel (DIN 17440)
- Fusion welding processes: manual arc welding (111), submerged arc welding (121), MAG (135/136/138), TIG (141)

Stadtallendorf
DEProduction site for filter technology – pressure vessels, apparatus and filters
- Materials
- Steel and stainless steel
Components & Products








Inside the production




Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Fusion welding (111 manual arc welding, 121 submerged arc welding, 135 MAG solid wire, 136Joining | – | 10 m | 16 t | – | Steel (EN ISO/TR 15608 group 1.1, 1.2), Stainless steel (group 8.1) |
| Vessel construction (vertical and horizontal vessels for liquids, gases, solids)Joining | – | ø 2500 mm (max. diameter) | 16 t | – | Steel, Stainless steel |
| Plant engineering (one-off fabrication, pre-assembly, complete assembly)Assembly | – | – | – | – | Steel and stainless steel (various material variants) |
| Piping fabrication incl. pipe fittings (tees, reducers, branches, segment bends,Joining | – | – | – | – | Materials according to EN 10025, Materials according to DIN EN 10028-2+3, Materials according to DIN 17440, Materials according to VdTÜV data sheets, foreign material codes |
| Filter manufacturing (standard and custom filters, pressure vessels and apparatus)Joining | – | – | – | – | Steel, Stainless steel |
| Spherical resonators and pulsation dampers at all pressure levelsJoining | – | – | – | – | – |
| Valve housing fabrication (mixing of hot/cold gas, use at high temperatures)Joining | – | – | – | – | heat-resistant steels |
| LNG components for operation at cryogenic temperatures down to -420 degrees FahrenheitJoining | – | – | – | – | – |
| Steel construction (frames, supports, substructures, access platforms, ladders)Joining | – | – | – | – | Steel |
| Custom vessel and custom construction fabrication according to customer specificationJoining | – | – | – | – | Steel, Stainless steel |
| Design / drawing creation and design review according to customer specificationsEngineering | – | – | – | – | – |
| Non-destructive testing (qualified personnel according to certificate)Testing | – | – | – | – | – |
Additional services
Quality & Certificates
GOH GmbH works with certified welding personnel and qualified personnel for non-destructive testing; the work and procedure qualifications for all processed materials are on file. Welding supervision (IWT/IWS) and responsibility for non-destructive testing are firmly anchored in dedicated personnel.
| Evidence | Netphen | Stadtallendorf |
|---|---|---|
| DIN EN ISO 9001:2015 | ||
| EN ISO 3834-2 | ||
| AD 2000 data sheet HP0 / HP 100R | ||
| DGRL Module D1/H/H1 | ||
| ASME U-Stamp | ||
| UDT (TÜV Poland) / SVTI (TÜV Switzerland) / Germanischer Lloyd |
History
Active in the market for over 25 years (as of website 2024/2025)