Radial Vanes: Thickness 3-8 mm, Flow Rate 50-500 m³/h

Component Specifications

Definition

Radial vanes are precision-engineered curved blades arranged radially around the hub of a high-pressure fish pump impeller. They convert rotational mechanical energy from the pump shaft into kinetic and pressure energy in the fluid (typically water containing fish or aquatic products). The vanes are designed with specific curvature (backward-curved, radial, or forward-curved profiles) to optimize efficiency, minimize turbulence, and handle solid-laden flows without damage to delicate biological materials.

Working Principle

Radial vanes operate on centrifugal force principles. As the impeller rotates at high speed, the vanes accelerate fluid outward from the center (eye) to the periphery. The curved shape guides fluid smoothly, converting velocity into pressure while minimizing shear forces that could harm fish. The vane geometry creates pressure differentials that maintain consistent flow rates even with variable solid concentrations.

Materials

Stainless steel (AISI 316L or 304), duplex stainless steel (2205), or marine-grade aluminum alloys (5052, 6061-T6) with corrosion-resistant coatings. Must be food-safe, non-toxic, and resistant to saltwater corrosion. Surface finish: Ra ≤ 0.8 μm to prevent biofilm accumulation.

Technical Parameters

Parameter	Typical range	Notes & selection driver
Flow Rate	50-500 m³/h
Thickness	3-8 mm
Vane Angle	15-30° (backward-curved)
Vane Count	5-9 blades
Tip Clearance	0.5-1.5 mm
Rotational Speed	500-3000 RPM
Operating Pressure	Up to 15 bar

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 5199, ISO 2858, DIN 24256

Parent Products

This component is used in the following industrial products

High-Pressure Fish Pump Impeller

Centrifugal impeller for transferring fish and seafood products through processing lines.

View Product Details

Engineering Analysis

Risks & Mitigation

Cavitation damage from improper NPSH
Fatigue cracking at weld joints
Biofouling reducing efficiency
Imbalance causing vibration

FMEA Triads

Trigger: Cavitation due to low inlet pressure
Failure: Pitting erosion on vane surfaces
Mitigation: Ensure adequate NPSH, install pressure sensors, use cavitation-resistant materials

Trigger: Corrosion in saltwater environments
Failure: Material degradation and leakage
Mitigation: Use duplex stainless steel, apply protective coatings, implement cathodic protection

Trigger: Fatigue from cyclic loading
Failure: Crack propagation at stress concentrations
Mitigation: Optimize fillet radii, perform stress analysis, use shot peening

Industrial Ecosystem

Compatible With

Typical Suppliers & Equivalents

Compliance & Inspection

Tolerance

±0.1 mm on critical dimensions, angular tolerance ±0.5°

Test Method

Hydrostatic pressure testing per ISO 5199, material certification per ASTM A240, surface roughness verification

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

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Inspection readiness

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Supplier transparency

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Manufacturers of Radial Vanes

Manufacturer profiles associated with Radial Vanes.

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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

Why are radial vanes backward-curved in fish pumps?

Backward-curved vanes provide stable pressure-flow characteristics, reduce turbulence, and minimize shear forces that could injure fish during transport.

How do radial vanes handle solid particles in fish pumps?

The smooth curvature and optimized tip clearances allow passage of fish and debris without clogging, while wear-resistant materials prevent erosion damage.

What maintenance do radial vanes require?

Regular inspection for corrosion, biofilm buildup, and wear at vane tips. Cleaning with food-safe solutions and checking balance during service intervals.

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.

Radial Vanes