Editorial Technical Reference

Chemical Reactor Temperature Sensor Probe

This page explains how Chemical Reactor Temperature Sensor Probe is classified within Basic Chemical Manufacturing. Technical values and manufacturer relationships are research references; confirm the current specification and supplier evidence for each order.

Technical Definition & Core Assembly

This temperature sensor probe is a component designed for insertion into chemical reactor vessels to monitor process temperatures.

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Product Specifications

Technical details and manufacturing context for Chemical Reactor Temperature Sensor Probe

Definition
This temperature sensor probe is a component designed for insertion into chemical reactor vessels to monitor process temperatures. It provides critical temperature data for reaction control, safety monitoring, and quality assurance in chemical manufacturing. The probe is engineered to withstand corrosive chemical environments and high-pressure conditions typical in reactor operations. It is manufactured as a standalone component that can be integrated into various reactor monitoring systems.

The probe uses either thermocouple or RTD sensing elements to detect temperature changes, converting thermal energy into electrical signals for measurement systems. It is available with a temperature range of -40 to 200 °C, a pressure rating of 1.0 to 1.6 MPa, and an insertion length of 100 to 500 mm. The response time is ≤5 seconds, and accuracy is ±0.5 °C (Class A tolerance per IEC 60751). The electrical connection is G1/2 to G1 per DIN 3852, and the output signal is 4-20 mA with HART protocol available. Supply voltage is 12-36 V DC, and ingress protection is IP65 to IP68. Probe diameter ranges from 6 to 12 mm, and weight from 0.5 to 2.0 kg. Standard material is stainless steel 316L (ASTM A276), with Hastelloy C276 optional. Other materials include PTFE insulation, mineral insulated cable, and ceramic insulator.

This probe is suitable for use in basic chemical manufacturing processes where accurate temperature monitoring is essential. It is designed for harsh environments and can be integrated into existing monitoring systems. When selecting a probe, consider the required temperature range, pressure rating, insertion length, connection type, and output signal. Verify that the probe meets the specific requirements of your application, including compatibility with the process media and environmental conditions. Always confirm model-specific values and standards with the legal manufacturer or supplier before purchase.
Working Principle
The probe operates on the principle of thermoelectric or resistance-based temperature sensing. In a thermocouple, two dissimilar metals are joined at the sensing tip, generating a voltage proportional to the temperature difference between the junction and the reference end. In an RTD (Resistance Temperature Detector), the electrical resistance of a metal (typically platinum) changes predictably with temperature. The probe's sensing element is housed in a protective sheath made of stainless steel 316L, with PTFE insulation and a mineral insulated cable to ensure electrical isolation and mechanical strength. The ceramic insulator provides additional thermal and electrical insulation. The probe converts thermal energy into an electrical signal (4-20 mA) that can be read by a control system. The response time is ≤5 seconds, allowing for timely process adjustments.
Common Materials
stainless steel 316L, PTFE insulation, mineral insulated cable, ceramic insulator
Technical Parameters
ParameterTypical rangeNotes & selection driver
Temperature RangeRequired-40–200 °COperating temperature limitsIEC 60751
Pressure RatingRequired1.0–1.6 MPaMaximum working pressureISO 5208
Insertion LengthRequired100–500 mmProbe insertion length
Response Time≤5 sTime to reach 90% of final valueIEC 60751
Connection TypeRequiredG1/2–G1Electrical connection interfaceDIN 3852
Accuracy±0.5 °CClass A toleranceIEC 60751
Output Signal4–20 mAHART protocol availableIEC 60751
Supply Voltage12–36 V DCLoop powered
Ingress ProtectionIP65–IP68For harsh environmentsIEC 60529
Probe Diameter6–12 mmAffects response time and strength
Material316LHastelloy C276 optionalASTM A276
Weight0.5–2.0 kgDepends on length and connection

Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.

Components / BOM

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Chemical Reactor Temperature Sensor Probe.

reactor temperature probe chemical temperature sensor

Industrial Ecosystem & Supply Chain Structure

Complementary Systems
Downstream Applications
Specialized Tooling

Application Fit & Sizing Matrix

Operational Limits
pressure: 0 to 100 bar
flow rate: 0 to 5 m/s
temperature: -50°C to 400°C
slurry concentration: Up to 40% solids by weight
Media Compatibility
✓ Aqueous solutions ✓ Organic solvents ✓ Polymer melts
Unsuitable: Hydrofluoric acid or highly concentrated caustic solutions
Sizing Data Required
  • Reactor vessel diameter
  • Required insertion length
  • Process temperature gradient

Reliability & Engineering Risk Analysis

Failure Mode & Root Cause
Thermal stress cracking
Cause: Rapid temperature cycling or thermal shock exceeding the sensor's design limits, causing material fatigue and fracture in the probe sheath or sensing element.
Chemical corrosion/degradation
Cause: Exposure to aggressive process chemicals (acids, caustics, solvents) that attack the probe materials (e.g., Inconel sheath, PTFE insulation), leading to pitting, thinning, or insulation breakdown.
Maintenance Indicators
  • Erratic or drifting temperature readings compared to other process indicators or control loops
  • Visible physical damage to the probe (cracks, bulging sheath, discoloration) or leakage at the connection point
Engineering Tips
  • Implement a thermal shock prevention protocol: ensure gradual heating/cooling rates during reactor startups/shutdowns, and use thermal wells or protection tubes to buffer the probe from direct rapid temperature changes.
  • Select probe materials compatible with the specific chemical environment (e.g., Hastelloy for acidic conditions, ceramic coatings for abrasion resistance) and regularly inspect/replace based on corrosion rate data and manufacturer's service life recommendations.

Indicative industry ranges for design and RFQ preparation. Confirm the exact figures and applicable standard with the manufacturer before specifying.

Compliance & Manufacturing Standards

Applicable Standards
ASTM E230/E230M-17 (Standard Specification for Temperature-Electromotive Force (emf) Tables for Standardized Thermocouples) CE Marking (EU Directive 2014/35/EU for Electrical Equipment)

Quoted from the published standard.

Manufacturing Precision
  • Temperature Accuracy: +/-0.5°C over operating range
  • Response Time: 90% of final reading within 10 seconds
Quality Inspection
  • Calibration Verification against NIST-traceable standards
  • Pressure Testing for hermetic seal integrity

Manufacturers of Chemical Reactor Temperature Sensor Probe

Manufacturer profiles associated with Chemical Reactor Temperature Sensor Probe.

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Frequently Asked Questions

What is the operating temperature range of this probe?

The probe is designed for an operating temperature range of -40 to 200 °C, as per IEC 60751. However, the actual range may depend on the specific model and configuration. Always verify with the manufacturer.

Can this probe be used in high-pressure reactors?

The probe has a pressure rating of 1.0 to 1.6 MPa. This indicates it is suitable for moderate pressure applications. For higher pressures, consult the manufacturer for appropriate models.

What output signal does the probe provide?

The probe provides a 4-20 mA output signal, with HART protocol available. This allows for integration with standard process control systems. The supply voltage is 12-36 V DC.

What materials are used in the probe construction?

The standard material is stainless steel 316L (ASTM A276), with Hastelloy C276 as an option. The probe includes PTFE insulation, mineral insulated cable, and ceramic insulator. These materials provide corrosion resistance and durability in harsh chemical environments.
Data basis: editorial classification, named public sources where available, and source-reviewed manufacturer records. See the editorial policy.

Data Basis

Editorial classification, named public sources where available, and source-reviewed manufacturer records.

Preliminary Technical Classification
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