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Hub / Centerbody Component – Machinery and Equipment Manufacturing

Component Specifications

Definition

The hub or centerbody is the core structural element of a swirl vane assembly, typically cylindrical or conical, designed to securely mount and radially position multiple vanes. It ensures precise angular alignment and mechanical stability while withstanding centrifugal forces, pressure differentials, and thermal stresses in fluid systems. This component creates the central axis around which vanes induce rotational flow patterns.

Working Principle

Acts as the mounting platform and geometric reference for swirl vanes, maintaining their radial position and angular orientation to impart controlled swirl or vortex motion to fluids (gases or liquids) passing through the assembly. The hub's geometry influences flow characteristics by defining vane attachment points and central obstruction effects.

Materials

Typically manufactured from corrosion-resistant alloys (e.g., stainless steel 304/316, aluminum 6061-T6), high-strength composites, or engineered polymers (PEEK, PTFE) depending on temperature, pressure, and chemical exposure requirements. Surface treatments may include anodizing, plating, or coatings for wear resistance.

Technical Parameters

Length 100-500 mm
Weight 0.5-15 kg
Diameter 50-300 mm
Surface Finish Ra 1.6-3.2 μm
Max Temperature -50°C to 400°C
Pressure Rating Up to 100 bar
Balance Tolerance G2.5
Vane Mounting Points 4-12

Standards

ISO 1940-1, DIN 45635, ASME B46.1

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Hub / Centerbody.

Parent Products

This component is used in the following industrial products

Swirl Vane Assembly

A mechanical assembly of angled vanes designed to impart rotational motion to fluid flow, typically used in combustion systems to stabilize flames.

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Engineering Analysis

Risks & Mitigation

Imbalance causing vibration
Material fatigue under cyclic loading
Corrosion in aggressive environments
Thermal expansion mismatch
Improper vane alignment

FMEA Triads

Trigger: Material fatigue from high-cycle stress
Failure: Crack propagation leading to structural failure
Mitigation: Implement regular NDT inspections and use fatigue-resistant alloys

Trigger: Improper balancing during manufacturing
Failure: Excessive vibration damaging adjacent components
Mitigation: Enforce dynamic balancing to ISO 1940 standards and quality checks

Industrial Ecosystem

Compatible With

Interchangeable Parts

Compliance & Inspection

Tolerance

±0.05 mm for critical dimensions, angular positioning within ±0.5°

Test Method

Coordinate measuring machine (CMM) verification, dynamic balancing tests, pressure testing per ASME BPVC

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 primary function of a hub/centerbody in swirl vane assemblies?

It provides structural integrity and precise geometric positioning for vanes to create controlled rotational fluid motion while withstanding operational stresses.

How does hub geometry affect swirl performance?

Hub diameter and shape influence flow acceleration, pressure drop, and vortex stability by altering the annular flow area and vane attachment angles.

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.

Hub / Centerbody