Manufacturer of corrosion-free plastic heat exchangers for aggressive media – development, simulation and production from Krefeld.
CALORPLAST Wärmetechnik GmbH
Krefeld, Siempelkampstraße 94New on Amplifa
About CALORPLAST
Since 1981, CALORPLAST Wärmetechnik GmbH has developed and produced heat exchangers made entirely from engineering plastics such as PE-RT, PP, PVDF and PFA as well as in stainless steel design. The patented module technology combines thin-walled plastic tubes into modules that can be scaled into heat exchangers with high surface density and low pressure losses. The portfolio includes bath heat exchangers, gas-to-water heat exchangers including the Evolution Series for heat recovery, shell-and-tube and tube-plate heat exchangers, biogas heat exchangers and heat exchangers for vanadium redox flow batteries. Design is computer-aided through simulation (CFD, thermal calculation); customisation such as suspension, pipework and connections is implemented according to customer requirements. The units are designed for operating temperatures from -30 to +140 °C and operating pressures from 3 to 16 bar. Fields of application are surface engineering and electroplating, chemistry and pharmaceuticals, semiconductor technology, wastewater treatment, biogas, agriculture and livestock farming, aquariums as well as air handling and HVAC technology. The site and headquarters are located in Krefeld.
- Site
- Krefeld
- Processes
- Plastic bath heat exchangers (bath HX, XS, tank bottom, PFA coil, steam operation, XL), Gas-to-water heat exchanger (GWT), Gas-to-water heat exchanger – Evolution Series, Shell-and-tube heat exchanger (incl. laboratory and flue gas versions, condensers, evaporators), Tube-plate heat exchanger (horizontal and vertical, condensers), Biogas heat exchanger (biogas cooler/heater), Heat exchangers for vanadium redox flow batteries (VRFB), Heat recovery in ventilation systems (KVS, heat pump combination)
- Materials
- Polyethylene (PE, PE-RT / RT-HD), Polypropylene, Polyvinylidene fluoride, Perfluoroalkoxy, Stainless steel (VA), Polyethylene (PE-RT / RT-HD), Stainless steel, Patented module manufacturing process
- Founded
- 1981
- Industries
- Surface engineering / electroplating, Chemical and pharmaceutical industry, Semiconductor technology / electronics, Air handling and HVAC technology / heat recovery, Wastewater treatment, Biogas
- 01
Consulting and dimensioning by engineers
- 02
Computer-aided simulation (CFD, thermal design)
- 03
Customised construction based on prefabricated tube segments
- 04
Patented module manufacturing process
- 05
Pipework and internal switching of heating/cooling flows
- 06
Customer-specific customisation (suspension, pipework, connections)
Materials & Processes
Polyethylene (PE-RT / RT-HD)
Standard material for bath and gas-to-water heat exchangers, chemically resistant and cost-efficient.
Polypropylene
Used with aggressive process media and for housings made of double-wall panels or solid material.
Polyvinylidene fluoride
For highly corrosive media such as mixed acids in semiconductor and solar cell production.
Perfluoroalkoxy
Highest chemical resistance, available as PFA coil version of the bath heat exchanger.
Stainless steel
Design for high temperatures in combination with alkaline process media.
Patented module manufacturing process
Joins thin-walled plastic tubes into modules with high surface density and low pressure losses.
Locations
Krefeld
DEHeadquarters and production
- Materials
- PE-RT, PP, PVDF, PFA, stainless steel
- Machine and plant equipment (machine tools/production facilities)
- Module manufacturing process
- Simulation technology
Components & Products
Inside the production
Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Plastic bath heat exchangers (bath HX, XS, tank bottom, PFA coil, steam operation, XL)Apparatus engineering/heat exchangers | – | – | – | – | PE-RT (PE RT/HD), PP, PVDF, PFA, Stainless steel (VA), Operating temperature -30 to +140 °C, Operating pressure 3 to 16 bar, Pressure loss approx. 50–500 mbar, Heat exchanger surface area 1 to >500 m² (Sell Sheet BWT) |
| Gas-to-water heat exchanger (GWT)Apparatus engineering/heat exchangers | – | – | – | – | PE-RT (PE RT/HD), PP (PPs), PVDF, Operating temperature -30 to +140 °C, Operating pressure 3 to 16 bar, Gas volume flows up to 80,000 m³/h |
| Gas-to-water heat exchanger – Evolution SeriesApparatus engineering/heat exchangers | – | – | – | – | PE-RT (PE RT/HD), Capacity up to 80,000 m³/h exhaust air in one line, ErP 2018 compliant |
| Shell-and-tube heat exchanger (incl. laboratory and flue gas versions, condensers, evaporators)Apparatus engineering/heat exchangers | – | – | – | – | PE-RT (PE), PP, PVDF, PFA (limited versions), Operating temperature -30 to +140 °C, Operating pressure 3 to 16 bar, Pressure loss approx. 50 mbar, Heat exchanger surface area 1 to >20 m² |
| Tube-plate heat exchanger (horizontal and vertical, condensers)Apparatus engineering/heat exchangers | – | – | – | – | PE-RT, PVDF, Operating temperature -30 to +140 °C, Operating pressure 3 to 16 bar, Heat exchanger surface area 1 to >20 m² (per heat exchanger) |
| Biogas heat exchanger (biogas cooler/heater)Apparatus engineering/heat exchangers | – | – | – | – | PE-RT, Housing made of PE, Operating temperature -30 to 80 °C, Operating pressure liquid side 4 to 8 bar, Gas side max. 40 mbar, Gas volume 100–1,000 m³/h |
| Heat exchangers for vanadium redox flow batteries (VRFB)Apparatus engineering/heat exchangers | – | – | – | – | PE-RT, PP, PVDF, Operating temperature -30 to +140 °C, Operating pressure 3 to 16 bar, Pressure loss approx. 50–500 mbar |
| Heat recovery in ventilation systems (KVS, heat pump combination)Apparatus engineering/heat exchangers | – | – | – | – | PE-RT, PP, PVDF |
| Stainless steel bath heat exchanger versionApparatus engineering/heat exchangers | – | – | – | – | Stainless steel (VA) |
| Bath heat exchanger – PFA coil versionApparatus engineering/heat exchangers | – | – | – | – | PFA (perfluoroalkoxy) |
| Bath heat exchanger – steam operation version (steam as heating medium)Apparatus engineering/heat exchangers | – | – | – | – | PE-RT, PP, PVDF |
| Vertical airflow version (GWT)Apparatus engineering/heat exchangers | – | – | – | – | PE-RT, PP, PVDF |
| Barn climate control / climate chamber version (GWT)Apparatus engineering/heat exchangers | – | – | – | – | PE-RT, PP, PVDF |
| Computer-aided design/simulation (CFD, thermal design) and customer-specificEngineering | – | – | – | – | – |
| Development, design and production of custom plastic heat exchangersEngineering | – | – | – | – | PE-RT, PP, PVDF, PFA, Stainless steel (VA) |
| Customised construction based on prefabricated tube segmentsEngineering | – | – | – | – | PE-RT, PP, PVDF |
1 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| Machine and plant equipment (machine tools/production facilities) | – | – | – | – | Krefeld, Siempelkampstraße 94 |
Additional services
Reference customers
History
- 1981
Foundation; over 40 years of experience in the development and production of plastic heat exchangers
- 2006
PVDF tube-plate and shell-and-tube heat exchangers in use in wet benches of solar cell production (Case study no. 8)