Manufactures industrial electric flow heaters, tank heaters, preheating modules and Power-to-Heat systems for shipbuilding and industry.
ELWA Elektro-Wärme GmbH & Co. KG
Maisach (Frauenstr. 26)New on Amplifa
About ELWA
ELWA is a family business founded in 1931 and now run by the third generation, headquartered in Maisach near Munich. On a production area of 6,400 m², the company manufactures and assembles industrial electric flow heaters, tank heaters, preheating modules for any media, and Power-to-Heat systems for converting surplus electricity into heat. Production also includes pressure vessels, pipework, shell-and-tube heat exchangers, frame constructions, switch cabinets and systems. Welding is carried out to EN ISO 3834-2 using MAG and TIG processes on unalloyed steels and austenitic Cr-Ni steels; Type 4600 pressure vessels made from HII steel and stainless steel are approved by classification societies such as Bureau Veritas, DNV, ABS, CCS and RINA. Customers come from shipbuilding, industry, energy systems, motorsport, chemicals, the food industry and municipal utilities. The service portfolio ranges from consulting and engineering through production to commissioning, maintenance, repair and service contracts in the DACH region.
- Site
- Maisach
- Processes
- Metal active gas welding (MAG, process 135 per EN ISO 4063), Tungsten inert gas welding (TIG, process 141 per EN ISO 4063), Manufacture of pressure vessels / fusion welding of metallic materials per EN ISO 3834-2, Manufacture of industrial flow heaters / Flow Heaters, Manufacture of (pre-)heating modules / Preheating modules for any media, Power-to-Heat systems (P2H) – conversion of surplus electricity into heat (e.g. 1 MW, 22, Tank heaters (tank heaters, e.g. ERH 800 RF/WR; Type 4600 pressure vessels 8–355 l, Ø 114.3–600 mm,, Plant construction and switch cabinet construction (Plant construction and switch cabinet building)
- Materials
- Unalloyed steels (EN ISO/TR 15608 group 1.1), Austenitic Cr-Ni steels (EN ISO/TR 15608 group 8.1), HII (pressure vessel steel, Type 4600 standard pressure vessel), CNS (stainless steel, Type 4600 standard pressure vessel), Unalloyed steels (EN ISO/TR 15608 group 1.1, incl. HII), Austenitic Cr-Ni steels (EN ISO/TR 15608 group 8.1, incl. CNS), MAG welding (metal active gas welding per EN ISO 4063), TIG welding (tungsten inert gas welding per EN ISO 4063)
- Certificates
- DIN EN ISO 9001:2015, DIN EN ISO 14001:2015, EN ISO 3834-2, AD 2000 HP0 / HP100R / EN 13445-4 / EN 13480-4 / EN 12953-4, DNV Module A2 Directive 2014/68/EU Pressure Equipment, DNV Welding Workshop Approval Pressure Equipment Class I II, DNV Type Approval 4600 Ships Pt.4 Ch.7 Pressure Equipment, DNV Type Approval 4700 Ships Pt.4 Ch.7 Pressure Equipment, CCS Type Approval 4600, CCS Type Approval 4700, BV MODE II SCHEME Type 4600/4700, BV Type Approval 4600 Unfired Pressure Vessels, BV Type 4700 Plate Heat Exchanger Certificate, ABS Type 4600 Certificate Marine Vessel Rules, ABS Type 4700 Certificate Marine Vessel Rules, RINA Audit Statement, EN ISO 3834-2 (TÜV SÜD, valid until 10.04.2028), AD 2000 HP0 / HP100R (TÜV), Classification societies (DNV, BV, ABS, CCS, RINA)
- Founded
- 1931
- Industries
- Shipbuilding, Industry, Energy systems/Energy supply, Motorsport, Municipal utilities, Chemicals
- 01
Consulting
- 02
Engineering/Design
- 03
Manufacturing (welding, vessel construction, switch cabinet construction)
- 04
Assembly
- 05
Commissioning support
- 06
Maintenance & Repair
- 07
Spare parts & Service contracts
Materials & Processes
Unalloyed steels (EN ISO/TR 15608 group 1.1, incl. HII)
Base material for pressure vessels, pipework and frame constructions, e.g. Type 4600 standard pressure vessels for oil.
Austenitic Cr-Ni steels (EN ISO/TR 15608 group 8.1, incl. CNS)
Stainless steel for pressure vessels and heat exchangers, e.g. Type 4600 for water and bilge water.
MAG welding (metal active gas welding per EN ISO 4063)
Fusion welding process for unalloyed steels in vessel and plant construction.
TIG welding (tungsten inert gas welding per EN ISO 4063)
Fusion welding process with solid wire or solid rod filler for steel and stainless steel.
Locations
Maisach
DEAdministration, manufacturing and assembly
- Part weight / size
- up to 1 t unit weight (welding)
- Materials
- Steel (group 1.1, HII), stainless steel (group 8.1, CNS)
- Flow heater manufacturing
- Pressure vessel manufacturing
- Switch cabinet construction
- System assembly
Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Metal active gas welding (MAG, process 135 per EN ISO 4063)Joining | – | 1.5 m × max. Ø 1500 mm | 1 t | – | Unalloyed steels (EN ISO/TR 15608 group 1.1), Austenitic Cr-Ni steels (EN ISO/TR 15608 group 8.1) |
| Tungsten inert gas welding (TIG, process 141 per EN ISO 4063)Joining | – | 1.5 m × max. Ø 1500 mm | 1 t | – | Unalloyed steels (EN ISO/TR 15608 group 1.1), Austenitic Cr-Ni steels (EN ISO/TR 15608 group 8.1) |
| Manufacture of pressure vessels / fusion welding of metallic materials per EN ISO 3834-2Joining | – | 1.5 m × max. Ø 1500 mm | 1 t | – | EN ISO/TR 15608 group 1.1, EN ISO/TR 15608 group 8.1 |
| Manufacture of industrial flow heaters / Flow HeatersEngineering | – | – | – | – | Steel, Stainless steel |
| Manufacture of (pre-)heating modules / Preheating modules for any mediaEngineering | – | – | – | – | – |
| Power-to-Heat systems (P2H) – conversion of surplus electricity into heat (e.g. 1 MW, 22Engineering | – | – | – | – | – |
| Tank heaters (tank heaters, e.g. ERH 800 RF/WR; Type 4600 pressure vessels 8–355 l, Ø 114.3–600 mm,Engineering | – | 600 mm | – | – | Steel (HII), Stainless steel (CNS) |
| Plant construction and switch cabinet construction (Plant construction and switch cabinet building)Assembly | – | – | – | – | – |
1 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| Production site (manufacturing and assembly of heaters, modules, pressure vessels and switch | ELWA Elektro-Wärme GmbH & Co. KG | – | Production area 6,400 m² | – | Maisach (Frauenstr. 26, D-82216 Maisach) |
Additional services
Quality & Certifications
Manufacturing is carried out to DIN EN ISO 9001:2015 and ISO 14001:2015; fusion welding is certified to EN ISO 3834-2 (TÜV SÜD), supplemented by AD 2000 HP0/HP100R as well as type approvals from DNV, BV, ABS, CCS and RINA. Non-destructive testing is the responsibility of named qualified personnel.
| Evidence | Maisach |
|---|---|
| DIN EN ISO 9001:2015 | |
| DIN EN ISO 14001:2015 | |
| EN ISO 3834-2 (TÜV SÜD, valid until 10.04.2028) | |
| AD 2000 HP0 / HP100R (TÜV) | |
| Classification societies (DNV, BV, ABS, CCS, RINA) |
History
- 1931
Founded by Dipl.-Ing. Anton Hilpoltsteiner by taking over the electrical department of an insolvent Munich company; electric stoves, development of flow heaters and electrically operated on-board galleys for zeppelins.
- 1950–1962
Post-war growth; 1962 new modern administration building; construction of canteen kitchens and flow heaters for shipbuilding and industry.
- 1971
Death of A. Hilpoltsteiner Senior; taken over by Hedwig Hausler and A. J. Hilpoltsteiner; expansion into plant construction and switch cabinet construction.
- 1985
Integration of switch cabinets, pumps and heating elements into efficient systems; international partnerships.
- 1988
ELWA becomes a standard supplier for engine manufacturers.
- 1993–1995
Advances in control technology and plant construction; expansion of the product portfolio.
- 2002
Death of A. J. Hilpoltsteiner; leadership by Dipl.-Ing. (FH) Markus A. Hilpoltsteiner, third family generation.
- 2009
Relocation from Munich to Maisach into a modern plant with 6,400 m² of production space.