High duties with hot thermal oil, hot water or steam on the tube side, cooling of hot process media.
There is no gasket between the media that could age or would need replacing. The unit is cleaned by chemical flushing rather than by brush or lance. If a medium carries solids or fouls heavily, we recommend a filter upstream of the unit or the fully dismountable type.
Design and limits
It belongs to the welded ranges: a tube coil in a stainless steel shell, no gasket between the media. Flanged connections on the tube and shell side, available with profiled tubes.
| Type designation | SC-HG |
|---|---|
| Operating temperature | up to 200 °C |
| Operating pressure | up to 16 bar |
| Connections | Flanges on tube and shell side |
| Tubes | plain or profiled |
| Dismountable | no |
The limits do not necessarily apply at the same time. The sizing and the quote are binding.
Strengths
- Higher operating temperature than the other welded ranges
- The largest sizes of the high-temperature type, for high duties
- Stands on feet, installed on the floor or on a foundation
- Belongs to the welded ranges: no gasket between the media
Limits
- No higher operating pressure than the other welded ranges
- Needs an installation area on the floor or on a foundation
- Cleaned by chemical flushing rather than by brush or lance
Pressure and temperature limits
The types differ in their temperature and pressure limits. The table above gives the values for this type; the comparison shows all types side by side.
The limits do not necessarily apply at the same time. The configurator checks the temperature limit itself during selection; operating pressure and material are fixed in the quote.
Materials
Shell, tube coil and nozzles are made of stainless steel 1.4307 or 1.4404, flanges, where fitted, of painted steel or stainless steel. The quote fixes which material fits.
The hot medium flows through the tube coil, the cold one through the shell. The coil absorbs the different thermal expansion of tube and shell.
A lot of heat at high temperatures
Where hot thermal oil, hot water or steam has to transfer high duties, the smaller sizes of the high-temperature type are not always enough. The sizing picks the size from your duty, temperatures and permissible pressure drops; you set the number of units in parallel in the configurator (one unit if left blank). Thermal oil is not in the configurator's calculation catalogue: choose “Other medium” there and name thermal oil, with fluid properties if known. The enquiry then goes to our engineers, who do the sizing.
The table above gives the operating temperature limit; it does not necessarily apply at the same time as the maximum operating pressure. Plan an installation area on the floor or on a foundation for the feet.
Selection and sizing
You do not have to pick the type in advance. The configurator determines type and size from your operating data: media, temperatures, mass flows and permissible pressure drops. Where the calculation model ends, our team does the sizing, for example with a pressure-drop limit on an oil, glycol or steam side.
Our team reviews the sizing; only the sizing and the quote are binding. The guide explains what the sizing works with.