
Our PFA-coated Type J Thermocouple s are built to thrive in the toughest chemical environments. Made with iron and constantan, these sensors handle temperatures from -210°C to 760°C with ±1.1°C accuracy. The PFA coating acts like a shield, protecting against acids, alkalis, and other corrosive substances, making them perfect for chemical reactors and processing tanks. We customize every detail—probe length, diameter, connectors—to fit your specific setup, ensuring reliable performance in harsh conditions. These thermocouples are your go-to for precise temperature monitoring where corrosion is a constant challenge.
The chemical processing industry is booming, driven by demand for specialty chemicals, pharmaceuticals, and advanced materials. Thermocouples are critical for monitoring temperatures in reactors and pipelines to ensure product quality and safety. Industry trends show a shift toward automation, with IoT-enabled sensors providing real-time data for process optimization. Corrosion-resistant materials like PFA are in high demand as plants handle increasingly aggressive chemicals. Stricter regulations, like those from OSHA and EPA, push for reliable sensors to meet safety and environmental standards. Our PFA-coated Type J thermocouples are designed to keep up with these evolving needs.
Our PFA-coated Type J thermocouples are workhorses in corrosive chemical environments. They monitor temperatures in reactors processing acids, alkalis, or solvents, ensuring consistent production quality. In pharmaceutical manufacturing, they track conditions in chemical synthesis, maintaining precision for drug production. They’re also used in wastewater treatment to monitor corrosive liquids and in food processing for acidic or cleaning solutions. Their moisture and corrosion resistance makes them versatile for any industry dealing with harsh, wet, or chemically aggressive conditions, delivering reliable data every time.
Why Choose Us?
Our PFA-coated Type J thermocouples stand out for their durability and precision in corrosive environments. Every sensor is calibrated in our ISO 17025-certified lab, ensuring the accuracy needed for critical chemical processes. We offer custom designs—think specific probe lengths or sealed connectors—that fit your setup perfectly, unlike generic sensors from others. The PFA coating we use is top-grade, providing unmatched protection against chemical attack. Another company might offer standard thermocouples, but our tailored solutions and fast delivery keep your operations running without a hitch. We’ve got pre-tested stock ready to ship, so you’re never waiting.
Parameter | Type J (PFA-Coated) | Type K | Type T | Type E |
|---|---|---|---|---|
Alloy Composition | Iron/Constantan | Chromel/Alumel | Copper/Constantan | Chromel/Constantan |
Temperature Range | -210°C to 760°C | -200°C to 1350°C | -270°C to 370°C | -270°C to 870°C |
Accuracy (SLE) | ±1.1°C or 0.4% | ±1.1°C or 0.4% | ±0.5°C or 0.4% | ±1.0°C or 0.4% |
Corrosion Resistance | High (PFA coating) | Moderate | High | Moderate |
Moisture Resistance | Excellent | Moderate | Excellent | Moderate |
Vibration Resistance | Low (iron prone to fatigue) | Moderate | Moderate | High (flexible design) |
Best Applications | Corrosive chemical solutions, food | General-purpose, industrial | Food safety, cryogenics | Automotive, chemical processing |
Magnetic Properties | Strongly magnetic (positive wire) | Slightly magnetic (positive wire) | Non-magnetic | Non-magnetic |
Our PFA-coated Type J thermocouples are the perfect choice for monitoring temperatures in corrosive chemical solutions, offering top-tier durability and accuracy. With industry trends pushing for reliability and compliance, custom sensors keep you ahead of the curve. From chemical reactors to wastewater treatment, we deliver tools that handle the toughest conditions with ease. Choose us for thermocouples that stand up to corrosion and perform flawlessly, every time.




About Us:
Our 12,000㎡ factory is equipped with complete capabilities for research, production, testing, and packaging. We strictly adhere to ISO 9001 standards in our production processes, with an annual output of 1,200 tons. This ensures that we meet both quantity and quality demands. Furthermore, all products undergo rigorous simulated environment testing including high temperature, high pressure, and corrosion tests before being dispatched, ensuring they meet customer specifications.
For all our clients, we offer timely and multilingual after-sales support and technical consulting, helping you resolve any issues swiftly and efficiently.

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FAQs:
Why are PFA-coated Type J thermocouples ideal for corrosive chemical solutions?
Type J thermocouples, with iron and constantan, paired with PFA coatings, resist acids, alkalis, and other corrosive chemicals, ensuring reliable performance up to 760°C.What temperature range can PFA-coated Type J thermocouples handle?
They measure from -210°C to 760°C, suitable for a wide range of chemical processing applications.How durable is the PFA coating in harsh chemical environments?
The PFA coating provides excellent resistance to corrosion, abrasion, and chemical attack, extending sensor life in aggressive settings.Can PFA-coated Type J thermocouples be customized for specific chemical processes?
We tailor probe lengths, diameters, and terminations to fit your reactors, tanks, or pipelines perfectly.How accurate are PFA-coated Type J thermocouples?
They offer ±1.1°C or 0.4% accuracy (special limits of error), delivering precise readings for chemical processes.What industries use PFA-coated Type J thermocouples besides chemical processing?
They’re used in food processing, pharmaceuticals, and wastewater treatment for corrosion-resistant temperature monitoring.How do PFA-coated Type J thermocouples perform in moist environments?
The PFA coating ensures excellent moisture resistance, making them ideal for wet or humid chemical environments.Are PFA-coated Type J thermocouples suitable for high-pressure systems?
Yes, with robust construction and sealed designs, they perform reliably in high-pressure chemical setups.
