ELWA

ELWA

ELWA- ELWA Power-to-Heat systems are the perfect choice to transform your excess electrical energy into heat for your thermal applications. ELWA‘s history began in 1931 when Dipl. Ing. Anton Hilpoltsteiner bought the electrical department from the insolvent assets of a Munich-based company, banking its future on building electrically heated devices. In the early years, ELWA produced electric cookers for domestic and industrial applications. The development of electrical continuous flow heaters was also set in train in this period. In addition to series production at that time, ELWA also offered its customers special fabrications for specific applications. The electrically powered on-board galleys for Zeppelin airships were developed and produced by ELWA.

At the start of the 20th Century, the electrical industry was still something rather exotic, but it soon underwent significant growth and the family firm, ELWA, also profited from this development. The company came through the Second World War without suffering serious damage, and was able to resume normal operations smoothly at the end of the conflict. The need to provide equipment for private households and the production industry meant that ELWA enjoyed full order books, making modernisation and expansion necessary. In 1962, the old production hall and the villa dating back to the founder‘s time were linked together by a modern administrative block. In this period, the two most important branches of the business were building canteen kitchens and producing continuous flow heaters for ship-building and industry.

In 1971, A. Hilpoltsteiner Senior died and the company passed into the hands of his daughter Hedwig Hausler and son A. J. Hilpoltsteiner, who became the Managing Director and guided ELWA through the 1970s and the difficult times in the 1980s. Two important decisions were taken during this period: production was expanded to include the areas of plant construction and switch cabinet building.

Ever since 1985, switch cabinets, pumps and heaters have been combined into efficient systems. The success of reliable ELWA products fuelled international interest in technology ”Made in Germany“. Contacts and business links were forged throughout the world.

ELWA established itself as a strong, innovative company in the international market. By 1988, ELWA had become a standard supplier for many engine manufacturers and IT systems began to be introduced. The preheater area continued to develop further. Important cooperation deals such as with fuel module manufacturers secured the market position.

In 1993 and 1995 the development of control technology and plant construction was pushed ahead decisively. The product range was extended time and time again. In 2002 A. Hilpoltsteiner passed away unexpectedly, at a sadly early age. Today the company is managed by Dipl.Ing. (FH) Markus A. Hilpoltsteiner in the third generation.

Canteen kitchen construction, which had up to that point been a second pillar of the company, was abandoned. The company grew, enjoying increasing success. Quite soon, the production facilities on Munich‘s Landsberger Strasse had become too cramped. At the turn of the year 2008/2009, ELWA moved to its new facilities in Maisach, located on the outskirts of the Bavarian metropolis. On a production area of 6400 m² with the latest working conditions, excellently trained employees manufacture ELWA devices for shipbuilding, industry, energy systems and motorsport.

Product Groups

  • Flowheaters
  • Tank heaters
  • Power-to-Heat
  • (Pre-)heating modules

Flowheaters

ELWA manufactures electric continous flow heaters in different designs. All products feature highest quality and flexibility to adapt the heater perfectly to the application.

Operating voltage, specific surface load, material of vessel and protection tubes, position and dimension of connecting flanges… there is almost no limitation to adapt the design to perfectly fulfill the requirements of our customers applications.

To guide you to the product best suited for you application, please use the fluid/application guide below… or scroll down to use the quick type guide  …if you prefer to check all available designs.

4600 RF

4600 RF heater are our workhorses for lower pressures up to 10 bar. They come with exchangeable heating elements (without draining the pressure vessel),  adjustable surface load (Watt density) according to customer specs. Mild steel or stainless materials can be used.

KEY FEATURES

  • Heating elements exchangeble without darining
  • Power rating 3 … 228 kW
  • Floor or wall mounting (each horizontal or vertical)
  • Watt density adjustable
  • (Almost) free positioning of pipe connections
  • Perfect for heating of oil, emulsions or similar fluids

4600 WR

4600 WR heater are our workhorses for higher pressures up to 16 bar and for watery mediums (cooling water / emulsions) . They come with exchangeable heating elements (you will need to drain the pressure vessel). Mild steel or stainless naterials can be used.

KEY FEATURES

  • Heating elements exchangeble without darining
  • Power rating 3 … 427 kW
  • Floor or wall mounting (each horizontal or vertical)
  • Watt density 6,5 W/cm2
  • (Almost) free positioning of pipe connections
  • Perfect for heating of water, emulsions or similar media

4600 MT

4600 MT heater are our workhorses for higher pressures up to 16 bar. They come with exchangeable heating elements (without draining the pressure vessel), adjustable surface load according to customer specs. Mild steel or stanless naterials can be used.

Tank heater

Based on the standard electric flow heater, ELWA manufactures tank insertion heaters, either with or without suction neck (series 800 / series 400). The heating inserts offer the same unique technical advantages as our standard heaters. With adaptable specific surface load and compact design, these heating inserts are perfectly suited to keep the temperature in tanks at the required level.

Tank heater 800 WR / 400 WR

The series 800 heating inserts offer the same unique technical advantages as our standard heaters. With adaptable specific surface load and compact desing, these heating inserts are perfectly suited to keep the temperature in tanks at the required level. Fluids: Oil, Emulsion / Power (max): 300 kW / Temperature (max): 150 °C / Pressure (max): 10 bar

Tank heater ERH 800 RF / 400 RF

The series 800 RF heating inserts feature design characteristics which make these units unrivalled on the market. The high variability of the design allows a perfect adaption to any process conditions. There is no better solution to heat up tanks.

Power-to-Heat

We all want to leave the next generations a world worth living in. Therefore, we must decarbonize immediately and decisively to mitigate climate change. If we are forced to use fossil fuels in certain applications, we must do so efficiently. And if we already have renewable energy sources on the grid, we must avoid curtailments.

  • ELWA Power-To-Heat systems have been developed to make a valuable contribution to decarbonization as a highly efficient technology in the field of sector coupling.
  • ELWA Power-To-Heat systems can be perfectly combined with heat pumps, combined heat and power plants, battery systems and large thermal storage units. We will be happy to advise you on how the various technologies can be perfectly combined.

ELWA P2H Advantages

  • Safety concept for 24 / 7 fully automated operation
  • Low maintenance & individually replaceable heating elements
  • Preventive maintenance & remote maintenance
  • Modular concept for very high system power
  • Powerful control system for extremely fast response times
  • Suitable for primary and secondary control power (PRL & SRL)
  • Control of additional system components possible

P2H compact

24 kW, 48 kW

P2H medium

144 kW, 216 kW, 288 kW, 360 kW, 432 kW, 576 kW, 792 kW, 1008 kW, 1680 kW

P2H MLB

400 VAC, 1008 kW
690 VAC, 1680 kW

(Pre-)heating modules

ELWA manufactures continous flow heaters of different designs. We use these heaters in combination with control boxes, pumps and other components to provide ready-to-run units for a wide variety of application. This product portfolio is completed with water supply systems, sludge collecting modules, PTH power-to-heat systems.

Preheater KVE

KVE units ready-to-run units including electrical preheater, control cabinet and circulating pump. Fluids: water, emulsion / Power (max): 147 kW / Temp (max): 100°C / Pressure (max): 10 bar.

Preheater KVES

KVES units are ready-to-run units including electrical preheater, control cabinet and circulating pump. These units are used to preheat the cooling water of large diesel engines or to serve as a heat source for sub-systems with heat exchangers. Fluid: water, emulsion / Power (max): 427 kW / Temp (max): 100°C / Pressure (max): 10 bar.

Preheater KVD

The series KVD heaters offer highly effective heating power for processes with water or similar media. The KVD series is based on high quality shell and tube heat exchangers. With the mounted control cabinet and the integrated pumps we offer configurable units which can be used for many applications. We use high-quality centrifugal pumps. The units can be adapted to any operating voltage between 230 VAC and 690 VAC.

Preheater KVT

The series KVT heaters offer highly effective heating power for processes with water or similar media. The KVT series is based on high quality shell and tube heat exchangers. With the mounted control cabinet and the integrated pumps we offer configurable units which can be used for many applications. We use high-quality centrifugal pumps. The units can be adapted to any operating voltage between 230 VAC and 690 VAC.

Preheater KVEc

The ultracompact KVEc heaters offer highly effective heating power for processes with water or similar media. Due to the flexible design, the units can be adapted to any operating voltage between 230 VAC and 690 VAC.

Power-to-Heat

ELWA Power-To-Heat systems have been developed to make a valuable contribution to decarbonization as a highly efficient technology in the field of sector coupling. ELWA P2H systems can be perfectly combined with heat pumps, combined heat and power plants, battery systems and large thermal storage units.