Description
RTD with Teflon Insulated Outer Sleeve (Model APWS/APWD) is a high-accuracy PT100 RTD temperature sensor designed for reliable temperature measurement in compatible corrosive chemical processes and diameter-constrained installations. Featuring a Class A PT100 sensing element, 6 mm OD SS316 stainless steel sheath, and an 8 mm OD Teflon (PTFE) protective outer sleeve, this corrosion-resistant RTD sensor provides an additional protective barrier between the metallic sensing sheath and compatible acid, alkali, and aggressive process media. With a standard 250 mm probe length and specified temperature range of -50°C to +300°C, its smaller-diameter construction makes it particularly suitable for narrow tank nozzles, small-bore pipelines, tight process tapping points, and retrofit applications where larger PTFE-sleeved temperature sensors cannot be accommodated.
The flexible Teflon insulated outer sleeve provides greater installation versatility by allowing suitable on-site forming for compatible mounting geometries, while the compacted MgO-insulated SS316 sensing sheath supports stable and repeatable industrial temperature measurement. A rugged IP65 die-cast aluminium terminal head with threaded cap and security chain provides reliable protection for electrical terminations in industrial environments. Manufactured by Aavad Instrument, this PTFE-sleeved PT100 RTD sensor offers a compact alternative to larger-diameter Teflon-protected sensors for chemical, pharmaceutical, fertilizer, specialty chemical, and industrial process applications where both corrosion protection and restricted installation diameter are important selection criteria.
Key Features
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Compact 8 mm Teflon Outer Sleeve Narrow profile engineered to pass through diameter-constrained process nozzles and fit within tight, small-bore piping manifolds.
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On-Site Field-Bendable Probe Geometry Flexible, manual-forming design lets installers bend the sensor body by hand during installation to achieve precise center-stream positioning.
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Premium Class A Thermal Precision Premium-grade platinum resistance element matches strict international DIN-IEC tolerances ($pm0.15^circtext{C}$ at $0^circtext{C}$) to guarantee tight process monitoring.
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High-Purity Compacted MgO Core Internally packed Magnesium Oxide powder delivers rapid thermal response times while completely stabilizing the element against mechanical pipeline fatigue.
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Robust Corrosion and Oxidation Shielding Heavy-duty PTFE insulation keeps the structural 6 mm marine-grade SS316 metal core safe from hyper-aggressive chemical deterioration.
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Weatherproof IP65 Aluminum Enclosure Heavy-duty die-cast aluminum terminal head prevents the intrusion of moisture, chemical plant dust, and atmospheric humidity.
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Threaded Connection Cap with Safety Chain Industrial screw-down cover includes a high-tensile metallic restraint chain to prevent drop loss or tool delays during field maintenance.
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Optimized 250 mm Insertion Profile Perfectly proportioned 250 mm standard length provides excellent immersion depth within compact tanks, mixing loops, and chemical reactors.
Applications
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Small-Bore Acid and Alkali Pipe Networks Continuous, reliable temperature tracking inside narrow chemical distribution lines, fluid dosing systems, and reagent loops.
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Diameter-Constrained Retrofit Projects Drop-in instrumentation upgrades for legacy processing equipment where available mounting ports are too narrow for standard 12 mm chemical probes.
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Pharmaceutical and Biotech Sterile Processing High-reliability temperature tracking in corrosive chemical cleaning systems and sanitary fluid lines where manual probe routing is needed.
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Tight Reactor and Vessel Tapping Points Safe integration into compact industrial processing units, chemical reactors, and blending tanks featuring restricted entry nozzles.
Datasheet
FAQs
1. What is an RTD with Teflon Insulated Outer Sleeve designed for?
An RTD with Teflon Insulated Outer Sleeve is a PT100 Resistance Temperature Detector (RTD) designed for accurate temperature measurement in highly corrosive acid and alkali environments up to 300°C. Aavad’s Model APWS is a Class A simplex PT100 RTD featuring a bendable mineral-insulated sheath protected by a flexible Teflon (PTFE) outer sleeve for superior corrosion resistance and installation flexibility.
2. Can this Teflon-Sleeved RTD Sensor be bent after manufacturing?
Yes. The sensor uses a bendable mineral-insulated sheath enclosed in a flexible Teflon (PTFE) sleeve, allowing it to be carefully bent during installation to suit tanks, pipelines, reactors, and other equipment with non-straight or restricted access points, while maintaining reliable temperature measurement.
3. What are the probe and Teflon Sleeve dimensions of this Sensor?
The standard sensor features a 6 mm outer diameter (OD) mineral-insulated probe with an 8 mm OD Teflon (PTFE) protective sleeve and a 250 mm probe length. It also includes a die-cast aluminum IP65 protection head, a ¾” ET cable entry, and a nickel-plated ceramic terminal block for dependable industrial performance.
4. Which industries use RTD Sensors with Teflon Insulated Outer Sleeves?
RTD Sensors with Teflon Insulated Outer Sleeves are widely used in chemical and petrochemical plants, acid and alkali storage tanks, pipelines, pharmaceutical manufacturing, industrial reactors, fertilizer plants, dye and pigment industries, specialty chemical processing, and other corrosive process applications.
5. How is this different from the Acid & Alkali RTD with a Rigid Protection Tube?
This sensor features a bendable mineral-insulated sheath with a flexible Teflon (PTFE) outer sleeve, allowing on-site bending and customized installation. In contrast, the rigid protection-tube RTD uses a fixed 8 mm thick-walled protective tube, making it better suited for straight, high-strength industrial installations with insertion lengths of up to 1000 mm.
