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Gauge Glass Component – Machinery and Equipment Manufacturing

Component Specifications

Definition

A precision-engineered glass component designed for liquid level gauges that provides a clear, durable viewing window to monitor fluid levels in pressurized or non-pressurized industrial systems. It must withstand thermal expansion, chemical exposure, and mechanical stress while maintaining optical clarity and structural integrity.

Working Principle

Operates on the principle of hydrostatic equilibrium where the liquid level inside the gauge glass matches the level in the connected vessel. The transparent glass allows visual observation of the liquid interface, with some designs incorporating colored bands or magnetic indicators for enhanced visibility.

Materials

Borosilicate glass (most common), tempered soda-lime glass, quartz glass for high-temperature applications, or armored glass with protective coatings. Material selection depends on pressure rating, temperature range, and chemical compatibility.

Technical Parameters

Thickness 3-25 mm
Transparency >90% light transmission
Surface Finish Polished to optical standards
Pressure Rating Up to 25 MPa
Temperature Range -20°C to 400°C
Chemical Resistance pH 0-14 compatible

Standards

ISO 3585, DIN 7080, ASME B31.1, EN 1595

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Gauge Glass.

Parent Products

This component is used in the following industrial products

Liquid Level Gauge

A measurement device that indicates the level of liquid CO₂ within a storage tank.

View Product Details

Engineering Analysis

Risks & Mitigation

Glass fracture under pressure
Chemical corrosion reducing visibility
Thermal shock cracking
Improper installation causing leaks
Reduced transparency over time

FMEA Triads

Trigger: Thermal stress from rapid temperature changes
Failure: Glass cracking or shattering
Mitigation: Use borosilicate glass with low thermal expansion coefficient, implement gradual temperature changes, install protective shields

Trigger: Chemical attack from process fluids
Failure: Surface etching and reduced transparency
Mitigation: Select chemically resistant glass grades, apply protective coatings, implement regular cleaning protocols

Industrial Ecosystem

Compatible With

Interchangeable Parts

Compliance & Inspection

Tolerance

±0.5 mm thickness variation, ±1° angular deviation, surface flatness within 0.02 mm

Test Method

Hydrostatic pressure testing per ASME standards, thermal shock testing, chemical resistance verification, optical clarity measurement

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 is the difference between tubular gauge glass and flat gauge glass?

Tubular gauge glass uses cylindrical glass tubes for direct level reading, while flat gauge glass consists of flat glass plates with gaskets, offering better pressure resistance and safety features.

How often should gauge glass be replaced?

Replacement intervals depend on service conditions: typically 1-3 years for continuous service, or immediately if clouding, cracking, or etching occurs. Regular inspection for scratches and chemical attack is essential.

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.

Gauge Glass