INDUSTRY COMPONENT

Casing / Housing

Protective enclosure for ID fan components ensuring structural integrity and operational safety.

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Component Specifications

Definition
The casing/housing is a structural component of an Induced Draft (ID) fan that encloses and protects internal elements such as the impeller, shaft, and bearings. It provides aerodynamic guidance for airflow, contains pressure differentials, prevents external contamination, and serves as a mounting framework for the entire fan assembly. Typically designed with inlet and outlet sections, access panels, and mounting flanges to integrate with ductwork systems.
Working Principle
Acts as a pressure vessel and airflow conduit by containing and directing the air moved by the rotating impeller. It maintains negative pressure conditions (for ID fans) to draw gases through industrial processes, while providing structural support and vibration dampening through rigid construction and proper sealing.
Materials
Carbon steel (ASTM A36/A572), stainless steel (304/316 for corrosive environments), aluminum alloys (for lightweight applications), or fiber-reinforced composites. Thickness ranges from 3-12mm depending on pressure requirements. Internal surfaces may have abrasion-resistant linings or coatings.
Technical Parameters
  • Noise Level <85 dB(A) with acoustic insulation
  • Leakage Rate <1% of flow capacity
  • Mounting Type Flanged or foot-mounted
  • Access Openings Minimum 500x500mm for maintenance
  • Pressure Rating Up to 15 kPa negative pressure
  • Temperature Range -20°C to 400°C
Standards
ISO 5801, ISO 13349, DIN 24163, AMCA 210

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Casing / Housing.

fan housing industrial casing ID fan enclosure draft fan components pressure vessel airflow duct fan assembly Casing / Housing Casing / Housing in Machinery and Equipment Manufacturing

Parent Products

This component is used in the following industrial products

ID Fan

A centrifugal or axial fan used to create negative pressure and draw exhaust gases through an off-gas cleaning system.

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Engineering Analysis

Risks & Mitigation
  • Structural fatigue from vibration
  • Corrosion in humid environments
  • Gasket failure causing leakage
  • Thermal expansion stress
  • Foreign object damage
FMEA Triads
Trigger: Vibration-induced metal fatigue
Failure: Crack development at weld joints
Mitigation: Regular vibration analysis, proper balancing of rotating components, and reinforcement at stress points
Trigger: Corrosive gas exposure
Failure: Wall thinning and eventual breach
Mitigation: Material selection (stainless steel/composites), protective coatings, and thickness monitoring

Industrial Ecosystem

Compatible With

Interchangeable Parts

Compliance & Inspection

Tolerance
±2mm dimensional tolerance on mounting surfaces, ±1° angular alignment
Test Method
Pressure testing per ISO 5801, leak testing with soap solution or ultrasonic detection, dimensional verification with laser scanning

Buyer Feedback

★★★★☆ 4.5 / 5.0 (10 reviews)

"Found 40+ suppliers for Casing / Housing on CNFX, but this spec remains the most cost-effective."

"The technical documentation for this Casing / Housing is very thorough, especially regarding technical reliability."

"Reliable performance in harsh Machinery and Equipment Manufacturing environments. No issues with the Casing / Housing so far."

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Frequently Asked Questions

What is the difference between ID fan casing and FD fan casing?

ID fan casings are designed for negative pressure (suction) applications and typically have heavier construction to prevent collapse, while FD (Forced Draft) fan casings handle positive pressure and focus on containing outward forces.

How often should fan casings be inspected?

Visual inspections quarterly, with comprehensive thickness testing and weld inspections annually, or per manufacturer's maintenance schedule based on operating hours.

Can I contact factories directly?

Yes, each factory profile provides direct contact information.

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