Description
A thermocouple is one of the most widely used industrial temperature sensors because it measures temperature using the Seebeck effect. When two dissimilar metal conductors are joined together and exposed to a temperature difference, they generate a small electrical voltage proportional to that difference. This simple, reliable principle allows thermocouples to measure temperatures across a wide operating range without requiring an external power source.
As a trusted thermocouple manufacturer in India, Aavad Instrument Pvt. Ltd. designs and manufactures precision-engineered temperature sensors for demanding industrial applications. Our thermocouples are used across power generation, chemical processing, petrochemical plants, heat treatment facilities, food processing, pharmaceuticals, steel production, and many other industries where accurate temperature measurement is critical.
The Model AKFS-6×250 represents our standard head-type K-Type thermocouple. It features a Chromel-Alumel (K-Type) sensing element, a durable SS310 stainless steel sheath, a flameproof die-cast aluminium terminal head with IP67 protection, and double compression cable entries for dependable operation in hazardous industrial environments. Designed for temperatures from 0°C to 1200°C, the sensor offers excellent resistance to oxidation and scaling during continuous high-temperature service.
To support quality assurance and regulatory compliance, Aavad manufactures thermocouples with calibration available through our NABL-accredited calibration laboratory, providing nationally traceable calibration certificates where required. This helps customers meet quality management and process validation requirements while ensuring confidence in measurement accuracy.
Key Features
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Flameproof IP67 Die-Cast Aluminum Enclosure Engineered to contain internal electrical sparks and prevent ignition in hazardous, explosive process areas.
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Double Compression Cable Entry Gland Dual cable entries provide secure, vibration-proof wiring routing and gas-tight sealing.
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High-Temperature SS310 Protection Sheath Superior high-chromium stainless steel alloy resists surface scaling and thermal creep up to 1200°C.
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NABL Accredited In-House Calibration Every sensor can be supplied with formal, nationally traceable calibration certificates for strict quality audits.
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Adjustable 1/2″ BSP(M) Compression Fitting Enables easy installation depth adjustment directly on process vessels and pipelines.
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Rapid Thermal Response 6 mm Probe Slim outer diameter minimizes thermal mass for fast temperature tracking during dynamic process shifts.
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Simplex 2-Wire K-Type Calibration Delivers a clean, linear thermoelectric signal directly to field transmitters, controllers, or PLCs.
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Fully Customizable Manufacturing Custom probe lengths, outer diameters, process fittings, and element wire counts available upon request.
Applications
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Industrial Furnaces, Kilns, and Heat-Treating Lines High-temperature measurement inside heat-treatment chambers, annealing ovens, and ceramic kilns up to 1200°C.
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Hazardous Chemical and Petrochemical Processing Temperature tracking in classified zones requiring certified flameproof (explosion-proof) enclosures.
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Power Plants, Boilers, and Turbine Flues High-temperature monitoring across steam headers, boiler passes, and turbine exhaust manifolds.
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Metallurgical, Plastics, and Glass Manufacturing Reliable process control in glass melting, non-ferrous foundry lines, and plastic extrusion machinery.
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Oil & Gas Refining and Storage Terminals Secure temperature acquisition in volatile fuel processing, storage tanks, and flare systems.
Datasheet
FAQs
1. What does a Thermocouple Manufacturer do?
A Thermocouple Manufacturer designs, manufactures, and tests industrial temperature sensors used for accurate process temperature measurement in furnaces, boilers, reactors, pipelines, heat treatment plants, kilns, and industrial machinery. In addition to standard products, manufacturers provide customized thermocouple designs, application-specific configurations, calibration services, and process connections to meet diverse industrial requirements.
2. What makes SS310 Stainless Steel superior to SS316 at elevated temperatures?
SS310 stainless steel contains a higher percentage of chromium (24–26%) and nickel (19–22%) than SS316, providing significantly better resistance to oxidation, scaling, and thermal fatigue at elevated temperatures. While SS316 is generally recommended for applications up to approximately 650°C, SS310 forms a stable protective oxide layer that withstands continuous service temperatures up to 1200°C. This makes SS310 an excellent choice for industrial furnaces, boilers, flue gas systems, kilns, and other high-temperature process heating applications.
3. What does the Flameproof (Explosion-Proof) rating on the terminal head signify?
A Flameproof (Explosion-Proof) Terminal Head is designed to safely contain any internal ignition that may occur due to electrical sparks. Its heavy-duty die-cast aluminum construction and precision-machined flame paths prevent flames or hot gases from escaping and igniting the surrounding hazardous atmosphere. This makes flameproof thermocouples suitable for use in oil & gas facilities, petrochemical plants, refineries, chemical processing units, and other hazardous industrial environments where explosive gases or vapors may be present.
4. What is the function of the Double Cable Entry port on the terminal enclosure?
The Double Cable Entry design allows separate input and loop-through signal cables to be connected within the same terminal head, reducing the need for external junction boxes during field installation. Compression cable glands provide a secure, dust-tight, moisture-resistant, and gas-tight seal around the cables, helping maintain the enclosure’s IP67 protection rating while simplifying wiring and maintenance.
5. Can this Thermocouple Assembly be customized for specific plant configurations?
Yes. Aavad Instrument Pvt. Ltd. manufactures thermocouple assemblies to meet specific plant requirements. In addition to the standard Model AKFS-6×250 with a 6 mm outer diameter, 250 mm insertion length, and 1/2″ BSP(M) process connection, we offer customized sheath lengths, diameters, process connections (BSP, BSPT, NPT, and Metric), simplex or duplex sensing elements, different thermocouple types, flameproof or weatherproof terminal heads, and optional head-mounted 4–20 mA temperature transmitters for industrial automation systems.
