Ventilation Flange: Temperature Range -40°C to 200°C

Component Specifications

Definition

A precision-engineered flange component designed to create airtight connections between ventilation ducts and gas detection ports in industrial machinery. It ensures proper airflow management while providing a stable mounting interface for gas sensors and monitoring equipment. The flange maintains structural integrity under varying pressure conditions and prevents gas leaks in hazardous environments.

Working Principle

The ventilation flange operates by creating a sealed mechanical connection between ventilation ducts and gas detection equipment using bolt patterns and gasket interfaces. It directs airflow through designated ports while allowing gas sensors to monitor air quality. The flange's design ensures uniform pressure distribution and prevents turbulence that could affect sensor accuracy.

Materials

Stainless steel 316L (ASTM A240), Aluminum 6061-T6 (for non-corrosive environments), or carbon steel with epoxy coating (ASTM A36). Gasket material: Viton fluoropolymer (FKM) for chemical resistance or silicone for high-temperature applications.

Technical Parameters

Parameter	Typical range	Notes & selection driver
Diameter	100-500 mm
Bolt Pattern	4-12 holes (ANSI/ASME B16.5)
Surface Finish	Ra 3.2 μm maximum
Pressure Rating	Up to 1.5 bar
Flange Thickness	6-20 mm
Temperature Range	-40°C to 200°C

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

Standards

ISO 5211, DIN 2501, ASME B16.5, EN 1092-1

Parent Products

This component is used in the following industrial products

Ventilation & Gas Detection Port

A port for electrical testing chambers that provides controlled ventilation and monitors hazardous gases.

View Product Details

Engineering Analysis

Risks & Mitigation

Gas leakage due to improper installation
Corrosion in chemical environments
Gasket failure under temperature extremes
Bolt fatigue from vibration

FMEA Triads

Trigger: Incorrect gasket installation
Failure: Gas leakage compromising detection accuracy
Mitigation: Implement torque-controlled installation procedures and use alignment tools

Trigger: Material corrosion from chemical exposure
Failure: Structural weakening and potential flange rupture
Mitigation: Select corrosion-resistant materials and apply protective coatings

Trigger: Vibration-induced bolt loosening
Failure: Connection failure and system downtime
Mitigation: Use vibration-resistant fasteners and implement regular torque checks

Industrial Ecosystem

Compatible With

Typical Suppliers & Equivalents

Compliance & Inspection

Tolerance

±0.5 mm on diameter, ±0.1 mm on bolt hole positioning, flatness within 0.2 mm across surface

Test Method

Pressure testing per ISO 5208, leak detection with helium mass spectrometry, dimensional verification with CMM

Procurement Evaluation Criteria

A practical evidence checklist for RFQ preparation and supplier evaluation.

Technical documentation

Request current drawings, revision history, and a signed specification sheet.

Manufacturing capability

Verify equipment lists, process limits, capacity, and representative production evidence.

Inspection readiness

Confirm test methods, calibrated equipment, sampling plans, and traceable reports.

Supplier transparency

Check the legal entity, factory address, ownership, certifications, and direct contacts.

CNFX does not score or rank suppliers. Buyers must verify all claims and documents with the legal manufacturer before ordering.

Manufacturers of Ventilation Flange

Manufacturer profiles associated with Ventilation Flange.

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Compiled and source-reviewed by the CNFX editorial team. Each manufacturer above links to the page on that company's own website where the product is listed, with the date we checked it. How we source and review

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Frequently Asked Questions

What is the primary function of a ventilation flange in industrial machinery?

The ventilation flange provides a secure, leak-proof connection between ventilation ducts and gas detection ports, ensuring proper airflow while enabling accurate gas monitoring in industrial environments.

How do I select the right material for a ventilation flange?

Material selection depends on environmental conditions: stainless steel 316L for corrosive environments, aluminum for lightweight applications, and coated carbon steel for general industrial use. Consider chemical exposure, temperature, and pressure requirements.

What maintenance is required for ventilation flanges?

Regular inspection for corrosion, gasket degradation, and bolt tension. Clean flange surfaces during maintenance cycles and replace gaskets according to manufacturer recommendations or when leaks are detected.

Data Basis

Editorial classification, named public sources where available, and source-reviewed manufacturer records. See the editorial policy.

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.

Ventilation Flange