Duct Panel/Body: Pressure Rating 250-2500 Pa

Component Specifications

Definition

A duct panel/body is a fabricated sheet metal component that serves as the primary structural element of duct sections in industrial ventilation, heating, ventilation, and air conditioning (HVAC) systems. It forms the enclosed conduit through which air, gases, or particulate matter is transported between different points in industrial facilities. These components are engineered to maintain specific cross-sectional shapes (rectangular, round, oval) while withstanding internal pressure, external loads, and environmental conditions.

Working Principle

The duct panel/body operates on fluid dynamics principles, providing a smooth, continuous surface that minimizes air resistance and turbulence while containing and directing airflow. It maintains pressure differentials between system sections and supports insulation or lining materials when required for thermal or acoustic control.

Materials

Galvanized steel (0.5-2.0mm thickness), stainless steel (304/316 grades for corrosive environments), aluminum (for lightweight applications), pre-painted steel, or composite materials with fire-retardant coatings. Material selection depends on temperature range (-30°C to +400°C), corrosion resistance requirements, and pressure ratings.

Technical Parameters

Parameter	Typical range	Notes & selection driver
Fire Rating	A2-s1,d0 non-combustible (EN 13501-1)
Leakage Class	Class A to D per SMACNA standards
Joint Strength	≥ 80% of base material strength
Surface Finish	Ra ≤ 12.5 μm for internal surfaces
Pressure Rating	250-2500 Pa
Flatness Tolerance	±1.5 mm per meter

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 6944, ISO 7231, DIN 24194, SMACNA HVAC Duct Construction Standards

Parent Products

This component is used in the following industrial products

Duct Sections

Prefabricated modular segments of ductwork used to construct ventilation, air conditioning, or exhaust systems.

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Engineering Analysis

Risks & Mitigation

Galvanic corrosion in mixed-material systems
Fatigue failure at seam joints under vibration
Internal contamination buildup affecting airflow
Thermal expansion/contraction stress fractures
Fire spread through duct systems

FMEA Triads

Trigger: Inadequate seam sealing or improper joint fabrication
Failure: Air leakage exceeding design limits (＞10% of design flow)
Mitigation: Implement automated seam welding with 100% visual inspection, use certified sealing compounds, conduct pressure testing at 1.5x operating pressure

Trigger: Material fatigue from pulsating airflow or vibration
Failure: Crack propagation at bend radii or connection points
Mitigation: Design with reinforced corners (minimum 1.5x material thickness radius), install vibration dampeners at fan connections, implement regular ultrasonic thickness testing

Industrial Ecosystem

Compatible With

Typical Suppliers & Equivalents

Compliance & Inspection

Tolerance

±1mm on linear dimensions up to 3m, ±0.5° on angular dimensions, seam straightness within 2mm over 3m length

Test Method

Pressure decay test per ISO 7231, leak detection with smoke or ultrasonic methods, dimensional verification with laser scanning, material certification per EN 10204 3.1

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 Duct Panel/Body

Manufacturer profiles associated with Duct Panel/Body.

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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 are the main differences between duct panels for industrial versus commercial applications?

Industrial duct panels typically feature thicker gauges (16-22 gauge vs 24-30 gauge for commercial), higher pressure ratings, corrosion-resistant materials for harsh environments, and reinforced seams for particulate-laden airflow. They also often include access panels for maintenance in industrial settings.

How do you determine the appropriate material thickness for a duct panel?

Material thickness is determined by calculating static pressure, dynamic loads, span between supports, temperature extremes, and corrosion factors. Standard calculations follow SMACNA or DIN guidelines, with typical industrial applications using 0.8-1.5mm galvanized steel for moderate pressure systems.

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.

Duct Panel/Body