Polypropylene (PP/PPH) shell and tube heat exchanger for non-oxidizing corrosive fluids. Lightweight, corrosion-resistant and cost-effective versus metal construction for acid and alkali cooling and heating.
PP/PPH Shell and Tube Heat Exchanger
Our polypropylene (PP/PPH) shell and tube heat exchangers are engineered for non-oxidizing corrosive fluids where metal construction is unnecessary or uneconomic. Made from PP/PPH, they provide reliable heat transfer for acid and alkali cooling, heating and condensation at low to moderate temperature.
Where PP/PPH Fits
Stainless steel shell and tube exchangers are chosen for oxidizing media (e.g. nitric acid) and higher temperatures. Silicon carbide is specified for the most aggressive, high-temperature services. PP/PPH shell and tube exchangers are the cost-effective choice for non-oxidizing duties such as hydrochloric acid, dilute sulfuric acid and alkaline solutions at moderate temperature.
Key Features
- PP/PPH wetted surfaces — excellent resistance to non-oxidizing acids and alkalis
- Lightweight and easy to handle versus steel or glass-lined units
- Cost-effective construction for large heat-transfer surface areas
- Configurable tube count, length and pass arrangement
- Graphite-modified PP grade available for improved thermal conductivity
Typical Applications
- Cooling of hydrochloric acid and other non-oxidizing acid streams
- Heating and tempering of alkaline (caustic) solutions
- Condensation duties where the vapor is non-oxidizing
- Electroplating, pickling and surface-treatment auxiliary circuits
Construction & Materials
Shell, tube sheets and heads are fabricated from PP/PPH. Tubes and internals are selected against the specific fluid and temperature.
Selection Parameters
| Parameter | Specification |
|---|---|
| Heat transfer area | [ Customizable m² range ] |
| Design pressure | [ Customizable shell / tube side, bar or MPa ] |
| Max. service temperature | [ Customizable — PP ~60 / PPH higher ] |
| Shell / tube material | PP / PPH [ Customizable ] |
| Arrangement | Fixed tube sheet / floating head [ Customizable ] |
FAQ
When should I choose PP/PPH over stainless steel?
Choose PP/PPH for non-oxidizing acids and alkalis at moderate temperature where the lower material cost and weight are advantageous. Do not use it for oxidizing media (e.g. nitric acid) or above its temperature limit.
Can PP/PPH handle high temperatures?
PP service is typically limited to around 60–70 °C; PPH grades extend the limit. For higher temperatures, stainless steel or silicon carbide should be considered.
Request a Quotation
Share your fluid, temperature, pressure and duty, and our engineering team will size a PP/PPH shell and tube exchanger to match.
