Regenerator Crown Thermocouple: India’s Complete Manufacturer Guide for Glass Furnace Crown, Regenerator & Refiner Temperature Monitoring

Inside a glass melting furnace, the difference between profit and disaster can be measured in degrees. The crown — the arched refractory roof spanning the melting tank — operates at temperatures between 1,400°C and 1,600°C in direct contact with flame from the burners below and corrosive combustion gases above. Run it too hot, and the refractory arch begins to corrode and slag at an accelerated rate, leading to premature furnace campaign failure that can cost a glass plant crores of rupees in emergency repairs and lost production. Run it too cool, and melting efficiency drops, fuel consumption climbs, and glass quality becomes inconsistent.

The instrument that makes precision crown temperature control possible — and that every serious glass plant in India runs continuously — is the Regenerator Crown Thermocouple: a purpose-engineered R type, double-ceramic-protected, platinum-rhodium noble metal assembly rated to 1,600°C, specifically designed to survive the most thermally aggressive measurement environment in the glass industry.

This is India’s most complete guide to the Regenerator Crown Thermocouple: the furnace architecture behind why it exists, the engineering inside Aavad’s ARFS model, where every glass plant in India needs it, and everything you need to source the right assembly.

Understanding Glass Furnace Architecture: Why Crown Temperature Is the Most Critical Measurement Point

To understand why a Regenerator Crown Thermocouple is a purpose-built specialty product rather than just any high-temperature thermocouple, you first need to understand the structure of a regenerative glass melting furnace.

The Crown: The Furnace’s Structural and Thermal Core

The crown is the arched refractory roof of the melting tank — the structure that spans the molten glass bath and contains the combustion space above it. The burners fire horizontally across this space, generating flame temperatures between 1,600°C and 1,800°C in the combustion zone. The crown directly faces this flame.

The crown’s thermal condition is the single most important indicator of furnace health:

• Crown temperature too high: The refractory material (typically silica, magnesia-chrome, or alumina-zirconia-silica depending on the furnace design) begins to soften, flux with combustion products, and undergo accelerated corrosion. Once crown refractory starts to fail, the deterioration is rapid and exponential — a cold repair or even a complete furnace rebuild may be the only remedy. In a large container or float glass furnace, an emergency crown repair can mean weeks of lost production and costs measured in crores.
• Crown temperature too low: The combustion efficiency drops, fuel consumption per tonne of glass increases, and the glass in the melting tank may not reach the correct melt temperature for complete fining (removal of dissolved gases and seeds). The result is poor glass quality — stones, seeds, and inconsistent viscosity at the forming end.

Crown temperature control sits at the intersection of furnace longevity, energy efficiency, and glass quality — simultaneously. No other single measurement point in the furnace has this combined impact.

The Regenerator: Heat Recovery and Its Own Monitoring Requirement

Regenerative glass furnaces — which account for the vast majority of large-scale container, flat, and specialty glass production worldwide — use regenerators: large chambers packed with refractory “checkerwork” (a lattice of refractory bricks) that alternately recover heat from the furnace exhaust gases and preheat the incoming combustion air. A typical regenerative furnace reverses firing direction every 20–30 minutes, alternating which regenerator is in “heat storage” mode and which is in “preheating” mode.

Why regenerator temperature monitoring matters:

• The top of the regenerator chamber — the regenerator crown — is the highest-temperature zone in the regenerator structure, reaching temperatures that can exceed 1,400°C–1,500°C in a well-fired large furnace
• Overheating of the regenerator crown causes the same refractory degradation mechanism as overheating the melter crown — with the additional complication that regenerator repairs are extremely difficult without taking the furnace completely offline
• Temperature monitoring in the regenerator allows plant engineers to track checker bed performance, identify uneven heat distribution, and monitor the thermal efficiency of the heat recovery system — directly affecting fuel consumption per tonne

The Refiner: Quality Control at the Final Forming Stage

The refiner is the section of the furnace downstream of the melting tank where the glass is held at controlled temperature for final homogenization and seed removal before it is distributed to the forming machines. Temperature uniformity in the refiner directly determines the viscosity consistency of the glass reaching the forehearths and forming equipment — and therefore the dimensional consistency and defect rate of the finished product.

Why the Crown Thermocouple Cannot Be a Standard Sensor

A standard K-type or even a standard S-type thermocouple assembly — the ARIS model used in general furnace applications — is not designed to survive the specific challenges of crown and regenerator measurement in a glass furnace:

Challenge 1: Extreme, Continuous Temperature — 1,400°C to 1,600°C

The ARFS Regenerator Crown Thermocouple is specifically rated to 1,600°C — 150°C above the ARIS standard R-type assembly (rated 1,450°C). This extended rating is not arbitrary; it matches the actual operating temperatures found at crown and regenerator monitoring points in large regenerative glass furnaces, where standard noble metal assemblies would be operating outside their rated envelope.

Challenge 2: Physically Larger Ceramic Assembly for Better Atmospheric Protection

The ARFS uses a 24 × 18 mm ID outer ceramic tube — significantly larger in cross-section than the standard ARIS outer ceramic (15 × 10 mm ID). This larger ceramic diameter serves two purposes:

1. Greater wall thickness means more ceramic mass between the furnace atmosphere and the noble metal sensing element — the outer tube can sustain more surface corrosion and thermal attack before the inner assembly is exposed
2. Greater structural strength in the thermal shock conditions of crown mounting, where the ceramic may experience more severe heating and cooling cycles during furnace reversals and operational changes than a sensor mounted further from the crown itself

Challenge 3: Double Ceramic Protection as Mandatory Architecture

The ARFS uses double protection — both an outer ceramic tube (24 × 18 mm ID, Ker-710, 500 mm) and an inner ceramic tube (15 × 10 mm ID, Ker-710, 500 mm) — joined with high-temperature alumina compound bonding at the transition between the SS 310 holding tube and the ceramic assembly. In general noble metal thermocouple service, double protection is important. In glass furnace crown service, it is non-negotiable:

• Glass vapor and silica contamination: Glass furnaces produce silica vapor (SiO₂) and volatile glass components at the high-temperature melting zone. Silica is a specific poison to platinum — it diffuses through ceramic protection at sustained extreme temperatures and forms platinum silicide compounds that permanently destroy the thermoelectric calibration of the noble metal element. The outer ceramic tube intercepts this contamination; the inner tube provides the secondary barrier if the outer is slowly permeated over months of service.
• Sodium and potassium vapor: Soda-lime glass production generates alkali vapors (Na₂O, K₂O) that can also attack both ceramic and noble metal elements at crown temperatures. Double protection significantly extends the time before these contaminants reach the sensing element.
• Thermal shock during reversal: Every 20–30 minutes during a regenerative furnace reversal, the thermal conditions at the crown change as the firing side alternates. The double ceramic system’s greater thermal mass handles these cyclic stresses better than a single-tube assembly.

Challenge 4: Alumina Compound Bonding at the Ceramic-to-Metal Joint

The joint between the metallic holding tube (SS 310, 30 mm OD) and the inner/outer ceramic assembly is made with high-temperature alumina compound bonding — not a simple mechanical press fit or standard refractory cement. This bonding method maintains the structural and gas-sealing integrity of the joint at sustained temperatures that would allow standard cements to crack, spall, or decompose, keeping the ceramic and metallic sections as a single coherent assembly throughout the thermocouple’s operating life.

### Full Specifications: Aavad ARFS Regenerator Crown Thermocouple

### The Precision Economics of Crown Temperature Control in Glass Manufacturing

The value of accurate, continuous crown temperature data isn’t abstract — it translates directly into measurable financial outcomes for every glass plant in India:

Refractory Life Extension

Silica crown refractory begins to undergo accelerated corrosion above approximately 1,600°C. Operating the crown at 1,570°C instead of 1,600°C doesn’t just mean “running 30°C cooler” — it means operating at a fundamentally different point on the refractory corrosion-rate curve. In silica refractory systems, small temperature reductions near the corrosion threshold can extend crown campaign life by months. In a large container glass furnace with a typical campaign life of 10–15 years, extending the campaign by 6–12 months through precise crown temperature control represents crores of rupees in deferred capital expenditure.

Fuel Efficiency and Energy Cost

Glass melting is an energy-intensive process. Natural gas or LPG consumption in a glass furnace is typically measured in the hundreds of millions of kilocalories per tonne of glass melted. Crown and regenerator temperature data feeds directly into combustion management — optimizing the air-to-fuel ratio, managing the reversal cycle timing, and balancing the regenerator loading — all of which directly affect specific fuel consumption (energy per tonne of glass). A 2–3% improvement in specific fuel consumption from better combustion management across a 200 tonne/day furnace represents significant annual fuel cost savings.

Glass Quality and Forming Efficiency

In the refiner and forehearth sections, temperature uniformity directly determines glass viscosity consistency at the forming machines. Temperature variation translates to variation in gob weight, forming forces, and ultimately wall thickness consistency in container glass. Precise refiner temperature monitoring — enabled by the same type of noble metal thermocouple — reduces forming downtime and defect rates.

### Where Regenerator Crown Thermocouples Are Used — India’s Complete Glass Industry Map

Container Glass — Bottles, Jars, Vials

India’s container glass industry is distributed across several key manufacturing clusters:

Uttar Pradesh — Firozabad and Agra: The most concentrated glass manufacturing geography in India. Firozabad alone hosts dozens of glass furnaces producing primarily glass bangles, decorated glass, and specialty glass items. The broader Firozabad-Agra cluster includes container glass producers serving FMCG, food and beverage, and pharmaceutical packaging markets.

Gujarat — Bharuch, Surat, Vapi, Vadodara: Industrial and pharmaceutical glass manufacturing. Bharuch hosts several glass plants including producers serving the pharmaceutical vials and bottles market. Gujarat’s glass industry serves both domestic consumption and export markets.

Maharashtra — Nashik, Pune, Mumbai environs: Nashik hosts major container glass producers. The Mumbai industrial belt includes specialty glass manufacturers.

West Bengal — Kolkata, Howrah, Bardhaman: Long-established glass manufacturing industry, particularly in container and domestic glass categories.

Telangana — Hyderabad and environs: Includes float glass and specialty glass production.

Uttarakhand — Rishikesh, Roorkee: Several pharmaceutical glass tube and vial manufacturers.

Rajasthan — Jaipur, Alwar: Domestic glass and decorative glass manufacturing.

Float Glass and Architectural Glass

Gujarat — Bharuch (Saint-Gobain, Gujarat Guardian): Two of India’s largest float glass plants operate in Bharuch, Gujarat — Saint-Gobain Glass India and Gujarat Guardian Limited. Float furnaces operate at larger scale and higher temperature consistency requirements than container glass furnaces, making regenerator crown temperature monitoring even more critical.

Rajasthan — Bhiwadi (AGC Glass India): A major float glass production facility.

Tamil Nadu — Sriperumbudur (Asahi India Glass / AIS): One of India’s leading automotive and architectural glass manufacturers.

Andhra Pradesh — APSEZ / Visakhapatnam area: Emerging glass manufacturing investments.

Specialty, Technical, and Pharmaceutical Glass

Gujarat: Bharuch, Vapi, Surat — pharmaceutical ampoule, vial, and tube glass producers serving India’s pharmaceutical API and formulation industry

Uttar Pradesh: Ferozabad (laboratory and specialty glass), Noida environs

Rajasthan: Alwar, Bhiwadi

Fiberglass and Glass Wool

Gujarat — Mehsana, Bharuch: Industrial fiberglass and glass wool producers

Tamil Nadu — Chennai and Sriperumbudur: Fiberglass manufacturing for wind energy and industrial applications

Blast Furnace, Rolling Kiln, and Other High-Temperature Applications

While the Regenerator Crown Thermocouple is primarily designed for glass furnace crown and regenerator monitoring, its ARFS construction — with the larger 24×18 mm outer ceramic, double protection, and 1,600°C rated range — also makes it applicable in:

Blast Furnace Hot Blast Stove Monitoring

Blast furnace hot blast stoves — also known as Cowper stoves — are large regenerative heat exchangers that alternate between “on gas” (burning) and “on blast” (delivering hot air to the blast furnace tuyeres). The stove dome and crown temperatures, and the checker chamber peak temperatures, involve measurement conditions directly analogous to glass furnace regenerator monitoring: extreme temperatures, regenerative cycling, and the need for long-term reliable noble metal thermocouple service.

Major blast furnace operators in India: Jamshedpur (Tata Steel) | Bhilai (SAIL) | Rourkela (SAIL) | Durgapur (SAIL) | Bokaro (SAIL) | Vijayanagar/Hospet (JSW Steel) | Visakhapatnam (RINL/Vizag Steel)

Rolling Mill Kilns and Tunnel Kilns

Ceramic tile tunnel kilns in Morbi, Gujarat — India’s largest ceramics manufacturing cluster — involve zone temperatures at the peak firing zone that overlap with the ARFS’s rated range. While standard noble metal assemblies (ARIS/ASWS) typically serve these applications, the ARFS’s larger ceramic section provides additional protection life in kilns with higher particulate loading or more aggressive atmospheres.

Installation Guidance: Mounting the Crown Thermocouple Correctly

Correct installation of a Regenerator Crown Thermocouple is as important as correct specification — an incorrectly positioned or poorly sealed crown thermocouple provides unreliable data that leads to poor furnace management decisions.

Mounting Position

Crown thermocouples are typically installed through the crown arch from the outside — penetrating the refractory arch to position the exposed ceramic sheath inside the furnace combustion space. The installation depth (how far the ceramic tip projects into the combustion space) determines what the sensor is actually measuring:

• Too shallow: The thermocouple tip sits partly within the refractory arch rather than in the open combustion space, reading a temperature influenced by the refractory mass rather than the actual combustion space temperature
• Correct depth: The tip projects into the open combustion space, reading the representative crown temperature that drives the management decisions the sensor is installed to support
• Too deep: Risk of direct flame impingement or exposure to glass carry-over, accelerating element contamination

The exposed ceramic sheath length of 350 mm on the ARFS is designed to allow correct projection depth into the furnace combustion space from the crown mounting point.

Sealing the Crown Penetration

The penetration through the crown refractory must be correctly sealed around the holding tube to prevent:

• Hot gas escape through the penetration, which would create a local hot spot on the external crown surface and heat the SS 310 holding tube beyond its rated temperature
• Cold air infiltration through the penetration, which would create a local cold spot in the combustion space and provide false-low readings

High-temperature refractory castable or fiber blanket sealing around the holding tube at the crown penetration is standard practice — confirm the sealing method with your furnace engineering team.

Cable Routing

From the IP-67 rated connection head at the external crown surface, the thermocouple signal cable routes away from the furnace exterior. The crown exterior is hot — often 300°C–500°C at the outer refractory surface — which means standard PVC cable would degrade quickly. Specify FG/FG/SS (fiberglass/fiberglass/stainless steel braid) cable for the run from the connection head to the nearest cool junction box, consistent with the cable type used on Aavad’s transition joint and MI thermocouple assemblies.

Maintenance and Replacement Planning for Crown Thermocouples

Expected Service Life

Crown thermocouple service life in glass furnaces is highly variable and depends on:

• Furnace atmosphere contamination levels (silica vapor, alkali vapor, sulfur)
• Operating temperature (closer to 1,600°C significantly reduces ceramic and noble metal life vs. 1,400°C operation)
• Furnace stability (frequent upsets and rapid temperature cycling stress the ceramic)
• Installation quality (poor sealing, incorrect depth, or mechanical stress on the assembly all reduce life)

A realistic range for double-ceramic R-type crown thermocouples in modern well-managed glass furnaces is 6 months to 2+ years per sensor. Plants with older furnaces, more contaminating glass compositions, or less stable operation may see shorter intervals. Planned replacement during the annual maintenance shutdown — rather than emergency replacement during production — is the correct maintenance philosophy.

Calibration Drift Monitoring

Noble metal thermocouples drift over time — slowly, but measurably. In a well-managed glass plant, crown thermocouples should be periodically compared against a known-good reference instrument (or sent for NABL recalibration) to detect accumulated drift before it affects the furnace management decisions being made from the sensor’s data. Aavad’s NABL-accredited calibration laboratory provides this service.

When to Replace: Warning Signs

• Sudden reading shift (step change rather than gradual drift): often indicates ceramic breach, element contamination, or electrical junction issue
• Increasing noise or instability on the reading: indicates degrading insulation resistance inside the ceramic assembly — typically from progressive contamination
• Physical inspection showing outer ceramic surface erosion, discoloration, or cracking during a cold maintenance window

India-Wide Coverage

Aavad Instrument supplies Regenerator Crown Thermocouples PAN India from Ahmedabad, Gujarat, with specific deployment experience in India’s glass and high-temperature processing industries:

Gujarat: Ahmedabad, Bharuch, Surat, Vadodara, Vapi, Ankleshwar, Mehsana, Rajkot, Morbi, Jamnagar, Gandhinagar, Bhavnagar, Hazira, Dahej, Porbandar

Uttar Pradesh: Firozabad, Agra, Noida, Greater Noida, Lucknow, Kanpur, Rishikesh, Mathura

Maharashtra: Nashik, Pune, Mumbai, Aurangabad, Nagpur, Chandrapur, Raigad

West Bengal: Kolkata, Howrah, Durgapur, Asansol, Bardhaman, Haldia

Rajasthan: Jaipur, Bhiwadi, Alwar, Neemrana, Chittorgarh, Kota, Bhilwara

Telangana & AP: Hyderabad, Sangareddy, Visakhapatnam, Vijayawada, Ramagundam

Tamil Nadu: Chennai, Sriperumbudur, Coimbatore, Mettur, Hosur, Ennore, Tuticorin

Karnataka: Bengaluru, Mysuru, Ballari/Hospet, Belagavi, Mangaluru, Tumakuru

Jharkhand: Jamshedpur, Bokaro, Ranchi, Dhanbad

Chhattisgarh: Raipur, Bhilai, Korba, Raigarh, Bilaspur

Odisha: Bhubaneswar, Rourkela, Angul, Hirakud, Paradip, Sambalpur

MP: Indore, Bhopal, Jabalpur, Singrauli, Pithampur

Delhi NCR: Delhi, Noida, Gurugram, Faridabad, Ghaziabad

Haryana: Gurugram, Manesar, Panipat, Bahadurgarh

Punjab: Ludhiana, Amritsar, Mohali, Jalandhar, Batala

HP: Baddi, Nalagarh, Parwanoo, Solan, Rishikesh (Uttarakhand)

Uttarakhand: Haridwar, Roorkee, Kashipur, Rishikesh

Kerala: Kochi, Thiruvananthapuram, Thrissur, Kozhikode

Goa: Panaji, Vasco, Ponda (industrial zone)

Assam & North-East: Guwahati, Numaligarh, Dibrugarh

Aavad Instrument: India’s #1 Regenerator Crown Thermocouple Manufacturer

Aavad Instrument Pvt. Ltd. Sangath Mall-1, 216-217, Chandkheda, Ahmedabad, Gujarat 380005

Manufacturing credentials:

• ISO 9001:2015 certified production facility
• In-house NABL-accredited calibration laboratory — calibration certificates traceable to national standards, issued on request with every noble metal thermocouple
• 15+ years of temperature instrumentation manufacturing including ceramic tube noble metal assemblies
• 38 million+ successful installations across India and 12+ countries
• 2,900+ customers including BHEL, ONGC, HAL, BARC, NALCO, Indian Railways, Indian Oil, Bharat Petroleum, NPCIL, L&T, Torrent Pharma, Piramal Glass, Saint-Gobain, Cera, Aditya Birla Group, Atul Ltd., Sintex, PepsiCo, Kohler, MIDHANI, RVUN

Related products for glass furnace complete instrumentation:

• Glass Furnace Thermocouple — for melting tank zone temperature monitoring
• High Temperature Thermocouple (ASWS, S type, up to 1,500°C)
• Noble Metal Thermocouples (ARIS, R type, up to 1,450°C)
• B Type Thermocouple (ABHS, up to 1,700°C)
• Platinum Thermocouple
• Rare Metal Thermocouple
• Full Ceramic Tube Thermocouple Manufacturer category

Custom assembly available: Non-standard insertion lengths, process connection configurations, and ceramic tube dimensions available through Build Your Products

Frequently Asked Questions

Q1. What is a Regenerator Crown Thermocouple and how is it different from a standard R type thermocouple?

A Regenerator Crown Thermocouple is a purpose-engineered R type (Pt.Rh 13%/Pt) noble metal thermocouple assembly specifically designed for the extreme demands of glass furnace crown and regenerator temperature monitoring. Compared to a standard R type (ARIS), the ARFS Crown Thermocouple uses a larger-bore outer ceramic tube (24 × 18 mm vs 15 × 10 mm), a higher temperature rating (1,600°C vs 1,450°C), the same double-protection ceramic architecture as the B type assembly, and alumina compound bonding at the ceramic-to-metal joint — all features addressing the specific challenges of glass furnace crown service: silica vapor contamination, alkali vapor attack, double-reversal thermal cycling, and the need for extended service intervals.

Q2. Why is crown temperature the most critical measurement in a glass melting furnace?

Crown temperature simultaneously determines three essential glass plant outcomes: furnace campaign life (overheating accelerates refractory corrosion), energy efficiency (correct temperature optimizes combustion and minimizes specific fuel consumption), and glass melt quality (temperature controls the fining efficiency and homogeneity of the melt). No other single measurement point in the furnace has this combined impact on profitability and longevity.

Q3. What does “regenerator” mean in the context of a glass furnace, and why does it need its own thermocouple?

A regenerator is the heat recovery chamber of a regenerative glass furnace, filled with refractory checkerwork that alternately stores heat from furnace exhaust gases and releases it to preheat incoming combustion air. The top of the regenerator chamber (the regenerator crown) reaches temperatures of 1,400°C–1,500°C and must be monitored for overheating (which causes refractory damage) and for heat balance across the checker bed (which determines combustion efficiency and preheat performance).

Q4. Why does the ARFS use a 24 × 18 mm outer ceramic rather than the standard 15 × 10 mm?

The larger outer ceramic provides greater wall thickness and physical mass between the furnace atmosphere and the noble metal sensing element — critical in glass furnace crowns where silica vapor, alkali vapors, and combustion products attack the ceramic surface progressively over the thermocouple’s service life. The thicker outer tube sustains more surface corrosion before the inner assembly is exposed, extending the service interval before the sensing element is contaminated.

Q5. What is high-temperature alumina compound bonding and why is it used at the joint?

High-temperature alumina compound bonding is a specialist refractory adhesive system that maintains structural integrity and gas-sealing at temperatures exceeding the service capability of standard refractory cements. It is used at the critical joint where the SS 310 metallic holding tube meets the inner and outer ceramic assembly, because this joint must remain sealed and structurally sound at the sustained extreme temperatures of crown service — a condition that would cause standard cements to crack, spall, or decompose over time.

Q6. Can the Regenerator Crown Thermocouple also be used for blast furnace hot blast stove monitoring?

Yes. Blast furnace hot blast stoves (Cowper stoves) involve regenerative cycling, dome and stove top temperatures in the 1,200°C–1,500°C range, and similar ceramic protection requirements to glass furnace regenerator monitoring. The ARFS’s 1,600°C rating, double ceramic protection, and alumina compound-bonded joint make it technically applicable to hot blast stove crown and dome temperature monitoring. Discuss your specific stove design and temperature profile with Aavad’s engineering team.

Q7. How often should crown thermocouples be replaced in a glass furnace?

Service life varies from approximately 6 months to 2+ years depending on furnace atmosphere contamination levels, operating temperature relative to the 1,600°C rated ceiling, and furnace stability. Planning replacement during scheduled cold maintenance shutdowns rather than emergency replacement during production is strongly recommended — crown thermocouple failures during production cause immediate loss of critical furnace management data.

Q8. What monitoring points in a glass furnace need noble metal thermocouples?

A complete glass melting furnace instrumentation scheme typically requires noble metal thermocouples at: melting tank crown temperature (multiple points across the crown arch), regenerator crown/top temperature (both port and centreline points), refiner crown or side-wall temperature, feeder and forehearth temperature monitoring, and any other zone where process temperatures exceed the practical K or N type operating range. Aavad’s full Glass Furnace Thermocouple and Ceramic Tube Thermocouple range covers all these applications.

Q9. Is NABL-accredited calibration available for the Regenerator Crown Thermocouple?

Yes. Aavad’s in-house NABL-accredited calibration laboratory issues traceable calibration certificates for the ARFS Regenerator Crown Thermocouple, providing the documentation required for ISO quality systems, plant instrumentation audits, and process validation requirements.

Q10. Does Aavad supply Regenerator Crown Thermocouples across all Indian states including the major glass manufacturing clusters?

Yes — Aavad supplies PAN India from Ahmedabad with active deployments across all major Indian glass manufacturing clusters: Firozabad and Agra (UP), Bharuch and Surat (Gujarat), Nashik (Maharashtra), Kolkata and Howrah (WB), Hyderabad (Telangana), and Bhiwadi and Sriperumbudur (Rajasthan and Tamil Nadu), as well as all blast furnace, ceramics, and high-temperature process industry locations across every Indian state.

Buy Regenerator Crown Thermocouples from India’s #1 Manufacturer

View the complete product specification and download datasheet ARFS_20X650 or contact Aavad Instrument to discuss your furnace’s specific crown and regenerator monitoring requirements.

📞 +91 90996 22823 | ✉ hrg@aavadinstrument.com | ISO 9001:2015 | NABL Accredited | Ahmedabad, Gujarat | PAN India Supply