Industry-Verified Manufacturing Data (2026)

Temperature & pH Probes

Based on aggregated insights from multiple verified factory profiles within the CNFX directory, the standard Temperature & pH Probes used in the Chemical Manufacturing sector typically supports operational capacities ranging from standard industrial configurations to heavy-duty production requirements.

Technical Definition & Core Assembly

A canonical Temperature & pH Probes is characterized by the integration of pH Electrode and Temperature Sensor. In industrial production environments, manufacturers listed on CNFX commonly emphasize Stainless Steel (316L) housing/sheath construction to support stable, high-cycle operation across diverse manufacturing scenarios.

Integrated sensor assembly for simultaneous monitoring of temperature and pH levels within a neutralization reactor.

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Product Specifications

Technical details and manufacturing context for Temperature & pH Probes

Definition
A critical instrumentation component of a neutralization reactor, consisting of a combined or co-located temperature sensor and pH electrode. It provides real-time, in-situ measurements of both thermal conditions and acidity/alkalinity (pH) of the reaction mixture, enabling precise process control for achieving target neutralization endpoints, optimizing reaction kinetics, and ensuring product quality and safety.
Working Principle
The temperature probe (typically a thermocouple or RTD) measures the thermal energy of the solution, converting it into an electrical signal. The pH probe measures the hydrogen ion activity via a glass electrode, generating a millivolt potential proportional to pH. Both signals are transmitted to a controller or data acquisition system for monitoring and automated adjustment of reactor conditions (e.g., heating/cooling, reagent dosing).
Common Materials
Stainless Steel (316L) housing/sheath, pH-sensitive glass membrane, Reference electrode fill solution (e.g., KCl), Thermocouple wires (Type J/K) or RTD element (Platinum)
Technical Parameters
  • Probe insertion length and diameter, determining immersion depth and fit within reactor ports. (mm) Customizable
Components / BOM
  • pH Electrode
    Measures the hydrogen ion concentration (pH) of the solution via a potential difference across a glass membrane.
    Material: pH-sensitive glass, reference electrolyte, Ag/AgCl reference element
  • Temperature Sensor
    Measures the temperature of the solution, often used to temperature-compensate the pH reading.
    Material: Thermocouple alloy (e.g., NiCr-Ni) or Platinum (Pt100/1000)
  • Probe Body / Sheath
    Protects internal sensors from the process medium, provides mechanical strength, and houses electrical connections.
    Material: Corrosion-resistant alloy (e.g., 316L Stainless Steel, Hastelloy), PEEK, or glass
  • Cable & Connector
    Transmits the electrical signals from the sensors to the transmitter or controller.
    Material: Shielded cable with insulation (e.g., PVC, PFA), waterproof connector
Engineering Reasoning
0-150°C temperature, 0-14 pH
Temperature > 150°C causes glass membrane dissolution at pH > 12, pH sensor drift > ±0.5 pH units beyond 80°C
Design Rationale: Thermal degradation of pH-sensitive glass membrane (silicate hydrolysis) and temperature coefficient mismatch between Nernst equation (59.16 mV/pH at 25°C) and reference electrode potential
Risk Mitigation (FMEA)
Trigger Electrolyte depletion in reference electrode (Ag/AgCl/KCl)
Mode: pH reading drift > 2.0 pH units/hour
Strategy: Double-junction reference electrode with 3.0 M KCl gel electrolyte and ceramic frit diffusion barrier
Trigger Thermal shock from >10°C/minute temperature gradient
Mode: Glass membrane fracture at stress > 50 MPa
Strategy: Hastelloy C-276 sheath with boron silicate glass (Coefficient of Thermal Expansion 3.3×10^-6/°C) matched to Inconel 625 housing

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Temperature & pH Probes.

neutralization reactor pH temperature probe chemical manufacturing pH monitoring sensor stainless steel 316L pH electrode assembly simultaneous temperature pH measurement probe industrial pH probe with thermocouple RTD

Applied To / Applications

This component is essential for the following industrial systems and equipment:

Neutralization Reactor
View system integration details

Industrial Ecosystem & Supply Chain DNA

Complementary Systems
Downstream Applications
Specialized Tooling

Application Fit & Sizing Matrix

Operational Limits
pressure: 0 to 10 bar
flow rate: 0 to 2 m/s
temperature: -10°C to 120°C
slurry concentration: Up to 20% solids by weight
Media Compatibility
✓ Aqueous chemical solutions ✓ Industrial wastewater streams ✓ Pharmaceutical process fluids
Unsuitable: Hydrofluoric acid environments
Sizing Data Required
  • Reactor vessel diameter
  • Required measurement accuracy (±pH, ±°C)
  • Process connection type (flange, threaded, sanitary)

Reliability & Engineering Risk Analysis

Failure Mode & Root Cause
Drift or Calibration Loss
Cause: Chemical attack from process fluids, coating degradation, or electrode aging leading to inaccurate pH or temperature readings.
Mechanical Damage or Fouling
Cause: Physical impact, abrasive particles in the process, or buildup of scale/biofilm insulating the probe and impairing response.
Maintenance Indicators
  • Erratic or non-responsive readings despite process stability
  • Visible cracks, coating damage, or heavy scaling on the probe body or sensing element
Engineering Tips
  • Implement regular calibration schedules using certified buffer solutions and reference thermometers, and store probes in proper storage solution when not in use.
  • Use protective sleeves or flow cells for harsh environments, and install in accessible locations to avoid mechanical stress during handling.

Compliance & Manufacturing Standards

Reference Standards
ISO 9001:2015 - Quality Management Systems ASTM E1129/E1129M - Standard Specification for Thermocouple Connectors CE Marking - Directive 2014/35/EU (Low Voltage Directive)
Manufacturing Precision
  • Temperature Accuracy: +/-0.1°C at calibration point
  • pH Electrode Response Time: 95% in <30 seconds
Quality Inspection
  • NIST-Traceable Calibration Verification
  • Immersion Test for pH Probe Integrity

Factories Producing Temperature & pH Probes

Verified manufacturers with capability to produce this product in China

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✓ 94% Supplier Capability Match Found

P Project Engineer from United Arab Emirates Feb 14, 2026
★★★★★
"Reliable performance in harsh Chemical Manufacturing environments. No issues with the Temperature & pH Probes so far."
Technical Specifications Verified
S Sourcing Manager from Australia Feb 11, 2026
★★★★★
"Testing the Temperature & pH Probes now; the technical reliability results are within 1% of the laboratory datasheet."
Technical Specifications Verified
P Procurement Specialist from Singapore Feb 08, 2026
★★★★★
"Impressive build quality. Especially the technical reliability is very stable during long-term operation."
Technical Specifications Verified
Verification Protocol

“Feedback is collected from verified sourcing managers during RFQ (Request for Quote) and factory evaluation processes on CNFX. These reports represent historical performance data and technical audit summaries from our B2B manufacturing network.”

8 sourcing managers are analyzing this specification now. Last inquiry for Temperature & pH Probes from Brazil (1h ago).

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Frequently Asked Questions

What materials make this probe suitable for chemical manufacturing environments?

The probe features 316L stainless steel housing for corrosion resistance, pH-sensitive glass membrane for accurate pH measurement, and platinum RTD or Type J/K thermocouple elements for temperature monitoring in harsh chemical environments.

How does this integrated probe benefit neutralization reactor monitoring?

By combining temperature and pH sensors in one assembly, it provides simultaneous real-time data, reduces installation points, minimizes maintenance, and ensures synchronized measurements critical for precise neutralization control.

What maintenance is required for the reference electrode fill solution?

The KCl reference electrode solution requires periodic refilling or replacement depending on usage intensity and process conditions, typically every 3-12 months, to maintain accurate pH measurements and prevent electrode drift.

Can I contact factories directly on CNFX?

CNFX is an open directory, not a transaction platform. Each factory profile provides direct contact information and production details to help you initiate direct inquiries with Chinese suppliers.

Data Specifications verified by CNFX Industrial Index (v2.6.03) for Chemical Manufacturing sector.

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