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Probe Body / Sheath Component – Machinery and Equipment Manufacturing

Component Specifications

Definition

The probe body or sheath is a critical component of temperature and pH probes, serving as the protective outer casing that houses the sensing elements. It provides mechanical protection, chemical resistance, and thermal insulation while allowing accurate measurement transmission. In industrial settings, it ensures sensor longevity and measurement reliability in harsh environments.

Working Principle

The probe body/sheath functions as a protective barrier that isolates sensitive sensing elements from external conditions while allowing thermal or chemical interaction for accurate measurements. It maintains structural integrity and prevents contamination of the sensing surface.

Materials

Stainless steel (316L, 304), Hastelloy, titanium, PTFE, PEEK, ceramic, glass. Material selection depends on chemical compatibility, temperature range, and pressure requirements.

Technical Parameters

Length 50mm to 1000mm
Diameter 3mm to 25mm
IP Rating IP67/IP68
Thread Type G1/2, NPT, M12, M20
Pressure Rating Up to 100 bar
Insertion Length Standardized based on application
Temperature Range -50°C to 400°C

Standards

ISO 9001, DIN 43760, IEC 60751, ASTM E1137

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Probe Body / Sheath.

Parent Products

This component is used in the following industrial products

Temperature & pH Probes

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

View Product Details

Sensor Probe

The sensing element of a level sensor assembly that directly contacts or interacts with the material being measured.

View Product Details

Engineering Analysis

Risks & Mitigation

Material incompatibility with process media
Thermal stress cracking
Mechanical damage from abrasion
Thread corrosion leading to leaks
Inadequate pressure rating

FMEA Triads

Trigger: Chemical attack on sheath material
Failure: Corrosion leading to process contamination and sensor failure
Mitigation: Material compatibility testing and protective coatings

Trigger: Thermal cycling stress
Failure: Crack formation and loss of sealing integrity
Mitigation: Use materials with matching thermal expansion coefficients and stress relief designs

Trigger: Mechanical impact during installation
Failure: Deformation affecting measurement accuracy
Mitigation: Proper installation procedures and protective mounting accessories

Industrial Ecosystem

Compatible With

Interchangeable Parts

Compliance & Inspection

Tolerance

±0.5mm diameter, ±1mm length, surface finish Ra ≤ 0.8μm

Test Method

Pressure testing per ISO 15848, material verification per ASTM standards, dimensional inspection per GD&T principles

Procurement Evaluation Criteria

Not customer reviews or live demand data. These dimensions support RFQ preparation and supplier evaluation.

Technical documentation

4/5

Manufacturing capability

4/5

Inspection readiness

5/5

Supplier transparency

3/5

These scores are example evaluation dimensions, not real customer ratings, country-specific buyer feedback, or live inquiry activity.

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Frequently Asked Questions

What materials are best for corrosive environments?

Hastelloy C-276, titanium, or PTFE-coated sheaths provide excellent corrosion resistance in acidic or alkaline conditions.

How does sheath material affect measurement accuracy?

Material thermal conductivity impacts response time; thinner walls and higher conductivity materials improve response but may reduce durability.

Can probe sheaths be customized for specific applications?

Yes, custom lengths, diameters, materials, and thread types are available for specialized industrial requirements.

Can I contact factories directly?

Yes, each factory profile provides direct contact information.

Data Basis

CNFX manufacturer profiles, technical classification, publicly available product information, and ongoing plausibility checks.

Preliminary Technical Classification

This page supports structured research, RFQ preparation, and supplier evaluation. It does not replace buyer-led supplier qualification, standards review, or technical approval.

Probe Body / Sheath