Description
RTD Sensor with Thermowell (Model APWS + TW-15×7) is a complete PT100 RTD temperature sensor assembly designed for accurate and reliable industrial temperature measurement in demanding process applications. Featuring a Class A PT100 sensing element, a rugged SS316 thermowell, and an IP65 die-cast aluminium terminal head, this industrial temperature sensor provides precise temperature monitoring across a wide operating range of -50°C to +400°C. The integrated SS316 thermowell protects the RTD sensor from high pressure, flowing media, corrosion, abrasion, and mechanical damage while maintaining excellent heat transfer for fast and accurate temperature measurement in critical industrial processes.
Engineered for continuous operation in harsh industrial environments, the removable PT100 RTD sensor can be replaced, calibrated, or serviced without removing the thermowell or interrupting the process, significantly reducing maintenance time and production downtime. The corrosion-resistant SS316 construction, 1/2″ NPT process connection, and IP65 weatherproof aluminium head ensure long-lasting performance in chemical processing, power plants, oil & gas, pharmaceuticals, food processing, water treatment, and industrial automation applications. Manufactured by Aavad Instrument, this RTD sensor with thermowell can also be customized with different insertion lengths, thermowell designs, process connections, and wiring configurations to meet specific project and plant requirements.
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Key Features
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Turnkey Sensor and Thermowell System Pre-engineered, factory-matched combination package arrives fully calibrated and completely ready for immediate, direct process installation.
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High-Precision Class A Accuracy Features a premium platinum resistance element providing exceptional linearity and tight Class A tolerances across a wide thermal range spanning from -50°C up to 400°C.
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Hot-Swappable Sensor Component Architecture Allows engineering teams to safely remove, inspect, or replace the internal RTD probe for verification without breaking the line pressure or causing unscheduled plant downtime.
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Heavy-Duty Machined SS316 Protection The rugged model TW-15×7 thermowell shield provides high resistance against mechanical erosion, fluid-induced vortex vibrations, and corrosive chemical environments.
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Weatherproof Die-Cast Aluminum Head Rugged IP65-rated housing protects internal terminal wiring from driving rain, airborne dust, and ambient humidity in demanding outdoor installations.
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Secure Threaded Cap and Chain Industrial-grade threaded enclosure cover paired with a heavy-duty metallic safety chain prevents component loss and eases field maintenance during inspections.
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Standard Machined Thread Connections Standardized 1/2″ NPT Male process threads and 1/2″ NPT Female instrument threads provide a highly secure, leak-proof mechanical joint.
Applications
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Chemical and Petrochemical Processing Lines Safe tracking of highly volatile fluids, corrosive acids, and raw chemical feedstocks inside continuous manufacturing loops.
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Power Plant Boilers and Steam Headers Reliability in high-temperature superheated steam lines, turbine inlets, and high-pressure boiler feedwater pipe networks.
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Oil and Gas Pipelines and Refineries Continuous thermal profiling of crude oil transport lines, natural gas headers, and high-velocity refinery process streams.
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High-Pressure and High-Velocity Pipework Deployment in high-stress fluid distribution networks where bare sensors would fail due to excessive hydraulic flow forces.
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Food and Pharmaceutical Process Systems Integration into pilot operations, utility loops, and clean process infrastructure requiring clean, non-contaminating SS316 thermowell contact surfaces.
Datasheet
FAQs
1. What is an RTD Sensor with Thermowell and why is it needed?
An RTD Sensor with Thermowell is a PT100 Resistance Temperature Detector (RTD) installed inside a protective SS316 thermowell that shields the sensor from process pressure, flow, vibration, and corrosive media while maintaining accurate temperature measurement. The thermowell also allows the RTD sensor to be removed or replaced without interrupting the process or causing media leakage.
2. What is the temperature range of Aavad’s RTD Sensor with Thermowell (Model APWS)?
Aavad’s RTD Sensor with Thermowell (Model APWS) operates over a temperature range of -50°C to +400°C with Class A PT100 accuracy. It features a die-cast aluminum IP65 protection head and a 1/2″ BSP adjustable process connection for reliable industrial temperature measurement.
3. What are the Thermowell dimensions supplied with this RTD Sensor?
The standard Thermowell (Model TW-15×7) is manufactured from SS316 stainless steel and features a 15 mm outer diameter (OD), 7 mm inner diameter (ID), 200 mm U-length, and 1/2″ NPT process and instrument connections. It is designed to match the APWS_TW_6x250 RTD Sensor assembly for secure installation and dependable performance.
4. Can the RTD Sensor be removed from the Thermowell without stopping the process?
Yes. One of the primary advantages of a thermowell assembly is that the RTD probe (6 mm OD, 250 mm length) can be withdrawn for replacement, inspection, or recalibration while the thermowell remains installed in the pipeline, vessel, or process equipment, eliminating process shutdown and preventing media leakage.
5. Which industries use RTD Sensors with Thermowells?
RTD Sensors with Thermowells are widely used in chemical and petrochemical plants, power plants, boilers, steam lines, oil & gas pipelines, refineries, food processing, pharmaceutical manufacturing, and hygienic process industries, where sensor protection, process safety, and simplified maintenance are essential.
