Hub / Centerbody: Diameter 50-300 mm, Length 100-500 mm

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

Parameter	Typical range	Notes & selection driver
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

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 1940-1, DIN 45635, ASME B46.1

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

Typical Suppliers & Equivalents

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

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 Hub / Centerbody

Manufacturer profiles associated with Hub / Centerbody.

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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 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.

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.

Hub / Centerbody