Vessel manufacturing in Freudenberg: pressure vessels and filter vessels up to 5000 mm diameter, 20 m length and 30 t unit weight.
ADF-Apparatebau GmbH
57258 Freudenberg (commercial and industrial park Hommeswiese)New on Amplifa
About ADF-Apparatebau
Since 1967, ADF-Apparatebau GmbH has been producing vessels for a wide range of applications at its Freudenberg site. A large share of revenue is generated by the manufacture of filter vessels used in drinking water treatment, bathing water treatment, full demineralization systems and the beverage industry. The manufacturing range includes adsorption vessels, activated carbon filters, pressure accumulator boilers, degassers, ion exchangers, reactors, stripper and absorption columns as well as other apparatus up to a diameter of 5000 mm, a length of 20 m and a unit weight of 30 t. Materials processed include structural steels, pressure vessel steels, austenitic steels and duplex steels; welding is performed using TIG, MIG/MAG, submerged arc and manual metal arc welding. Carbon steel vessels receive an internal hard rubber lining or epoxy resin interior coating through partner companies. Technical drawings are produced using 2D CAD, and strength calculations to AD-2000 are part of the service portfolio. 20 employees work in administration and production; the company is certified to EN ISO 3834-3 and holds the AD 2000 HP 0 approval. As of January 2023, 2000 projects had been completed and 8100 pressure vessels built.
- Site
- Freudenberg
- Processes
- Vessel construction (apparatus engineering, welded construction), TIG welding, MIG/MAG welding, Submerged arc welding, Manual metal arc welding, Internal hard rubber lining (by partner companies), Epoxy resin interior coating (by partner companies), High-voltage testing of interior coating for defects (pores)
- Materials
- S235JR, S355JR, P235GH, P265GH, P250GH, P355NH, 1.4301, 1.4541
- Certificates
- EN ISO 3834-3, AD 2000 HP 0
- Founded
- 1967
- Employees
- 20
- Industries
- Drinking water treatment, Bathing water/swimming pool technology, Full demineralization, Beverage industry, Pressure vessel construction, Apparatus engineering
- 01
Design (2D CAD to customer specifications)
- 02
Strength calculation to AD-2000
- 03
Welded construction (TIG, MIG/MAG, submerged arc, manual metal arc)
- 04
Corrosion protection: hard rubber lining or epoxy resin interior coating
- 05
High-voltage testing of the interior coating
- 06
Acceptance in accordance with Pressure Equipment Directive 2014/68/EU
Materials and Processes
S235JR (structural steel)
Structural steel for general vessel constructions.
S355JR (structural steel)
Higher-strength structural steel for load-bearing vessel components.
P235GH (pressure vessel steel)
Pressure vessel steel for exposure to internal pressure and elevated temperatures.
P265GH (pressure vessel steel)
Pressure vessel steel for boilers and apparatus in pressure vessel construction.
P250GH (pressure vessel steel)
Pressure vessel steel for pressure-loaded vessel components.
P355NH (pressure vessel steel)
Higher-strength pressure vessel steel for increased requirements.
1.4301 (austenitic steel)
Stainless steel for corrosion-exposed vessels.
1.4541 (austenitic steel)
Titanium-stabilized stainless steel for vessels in plant engineering.
1.4571 (austenitic steel)
Molybdenum-alloyed stainless steel for increased corrosion requirements.
1.4404 (austenitic steel)
Molybdenum-alloyed stainless steel for aggressive media.
1.4462 (duplex steel)
Duplex steel for high strength and corrosion resistance.
Site
Freudenberg
DEHeadquarters, production and administration (commercial and industrial park Hommeswiese)
- Part weight / size
- up to 30 t unit weight, Ø 5000 mm, length 20 m
- Materials
- Structural steels, pressure vessel steels, austenitic steels, duplex steels
- TIG welding
- MIG/MAG welding
- Submerged arc welding
- Manual metal arc welding
Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Vessel construction (apparatus engineering, welded construction)Joining | – | 20 m × 5000 mm (diameter) | 30 t (unit weight) | – | S235JR, S355JR, P235GH, P265GH, P250GH, P355NH, 1.4301, 1.4541, 1.4571, 1.4404, 1.4462 |
| TIG weldingJoining | – | – | – | – | Structural steels, Pressure vessel steels, Austenitic steels, Duplex steels |
| MIG/MAG weldingJoining | – | – | – | – | Structural steels, Pressure vessel steels, Austenitic steels, Duplex steels |
| Submerged arc weldingJoining | – | – | – | – | Structural steels, Pressure vessel steels, Austenitic steels, Duplex steels |
| Manual metal arc weldingJoining | – | – | – | – | Structural steels, Pressure vessel steels, Austenitic steels, Duplex steels |
| Internal hard rubber lining (by partner companies)Surface | – | – | – | – | Carbon steel (vessels) |
| Epoxy resin interior coating (by partner companies)Surface | – | – | – | – | Carbon steel (vessels) |
| High-voltage testing of interior coating for defects (pores)Testing | – | – | – | – | – |
| Acceptance in accordance with EU Pressure Equipment Directive 2014/68/EU Module G (notified body)Testing | – | – | – | – | – |
| Technical drawings with 2D CAD to customer specificationsEngineering | – | – | – | – | – |
| Strength calculations to AD-2000 (pressure vessels)Engineering | – | – | – | – | – |
| Manufacture of pressure vessels (certified to EN ISO 3834-3, AD 2000 HP 0)Joining | – | 20 m × 5000 mm (diameter) | 30 t (unit weight) | – | S235JR, S355JR, P235GH, P265GH, P250GH, P355NH, 1.4301, 1.4541, 1.4571, 1.4404, 1.4462 |
Additional services
Quality and Approvals
The company is certified to EN ISO 3834-3 with an associated quality management system and holds the general pressure vessel approval to AD 2000 HP 0. Every interior coating is tested for defects by high-voltage testing; acceptance is carried out by a notified body under EU Pressure Equipment Directive 2014/68/EU Module G or as a works acceptance under Art. 4(3).
| Evidence | Freudenberg |
|---|---|
| EN ISO 3834-3 | |
| AD 2000 HP 0 |
History
- 1967
Founding and start of vessel production for a wide range of applications.
- 2023
As of January 2023: 2000 completed projects, 8100 pressure vessels built, 56 years of experience.