Ten top tips for spiral heat exchangers
Ten top tips to keep your spiral heat exchanger in tip top condition
- Never open a unit if one or both channels are pressurized. Any attempt to do so may cause personal injury and/or damage the unit and its surroundings.
- Ensure that key operating conditions (temperatures and flow rates) match the original specifications.
- Lift the unit by its lifting lugs and not by the connections or the cover lug.
- During transportation or prolonged periods of shutdown, cover gaskets and/or hook bolts may loosen, so please tighten in a diagonally opposite sequence.
- Make sure all residual air has been removed from the unit before start up.
- Open and close valves slowly to avoid water hammer from pressure surges during start-up and shutdown.
- For fluids which contain solid particles, always operate in accordance with the design rate to avoid thickening or clogging.
- Use Cleaning-In-Place (CIP) or back flushing to avoid the need to open the heat exchanger for cleaning.
- Cover gasket must be changed after each opening, so keep a spare gasket on site.
- In case of shut down either for a long period, using corrosive fluid or threat of a freezing risk, flush and/or drain the heat exchanger.
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