Chemical Industry Heater Manufacturer

Frequently Asked Questions

• Q: What is the best sheath material for heating sulfuric acid?

• A: For concentrated sulfuric acid at room temperature, Teflon (PTFE) is an excellent choice. For hot, dilute sulfuric acid, alloys like Incoloy 825 or Hastelloy are required.

• Q: Can you provide a heater that is compatible with many different chemicals?

• A: 316L stainless steel offers good general corrosion resistance. For more aggressive or mixed chemical environments, a more exotic alloy like Hastelloy C276 is often the best choice for broad compatibility.

• Q: When do I need an explosion-proof heater?

• A: You need one whenever the heater is installed in a location where flammable gases, vapors, or combustible dust may be present in sufficient quantities to cause a fire or explosion.

• Q: What is a circulation heater and when should I use one?

• A: A circulation heater is a vessel with heaters inside that heats a fluid as it is pumped through it. It's ideal for heating fluids in a closed-loop system, providing fast and efficient heating.

• Q: How do I prevent coking or fouling on the heater elements?

• A: Use a low watt density design and ensure adequate fluid velocity across the heater elements. Our swirl-flow circulation heaters are excellent at preventing fouling.

• Q: Can you provide heaters with PTFE coating?

• A: Yes, we can apply a PTFE (Teflon) coating to our immersion heaters, providing an excellent chemical barrier for highly aggressive acids and bases.

• Q: What safety features should I include?

• A> We highly recommend a high-limit thermostat to prevent overheating and a thermowell for accurate temperature control. In hazardous areas, an explosion-proof enclosure is mandatory.

• Q: Can you support my project with engineering calculations?

• A: Yes, our engineering team can perform detailed heat loss and thermal calculations to ensure you get a heater that is correctly sized for your process, ensuring both performance and safety.