INDUSTRY COMPONENT

Impeller Hub

Central structural component connecting impeller blades to pump shaft in high-pressure fish pumps

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Component Specifications

Definition
The impeller hub is the precision-engineered central component of a high-pressure fish pump impeller assembly, designed to securely mount and position impeller blades while transmitting rotational torque from the pump shaft. It serves as the structural backbone that maintains blade alignment, distributes hydraulic loads, and ensures balanced rotation under extreme pressure conditions encountered in fish transfer applications.
Working Principle
The hub converts rotational energy from the pump shaft into centrifugal force through rigid blade attachment, creating pressure differentials that move fish and water mixtures. Its balanced design minimizes vibration while withstanding axial and radial forces generated during operation.
Materials
316L stainless steel (marine grade) with optional duplex stainless steel variants for corrosive environments; Hardness: 25-32 HRC; Surface finish: Ra 0.8 μm or better
Technical Parameters
  • Mounting Method Bolted or welded blade attachment
  • Pressure Rating Up to 25 bar
  • Balance Standard G6.3 per ISO 1940
  • Shaft Connection Keyed or splined interface
  • Temperature Range -10°C to 80°C
  • Corrosion Resistance ASTM A240 compliant
Standards
ISO 5199, ISO 1940-1, DIN 24255

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Impeller Hub.

impeller hub fish pump component aquaculture equipment stainless steel hub pump impeller parts marine pump components Impeller Hub in Machinery and Equipment Manufacturing

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

Agitator/Impeller

A rotating mechanical component within a neutralization reactor that mixes reactants to ensure uniform chemical reactions.

View Product Details

Impeller / Mud Pump

A rotating component within a degasser that creates centrifugal force to pump drilling mud and facilitate gas separation.

View Product Details

Engineering Analysis

Risks & Mitigation
  • Corrosion fatigue
  • Cavitation damage
  • Shaft misalignment
  • Imbalance-induced vibration
  • Bolt fatigue failure
FMEA Triads
Trigger: Saltwater corrosion
Failure: Reduced wall thickness leading to structural failure
Mitigation: Regular thickness testing and protective coating application
Trigger: Improper installation torque
Failure: Blade detachment during operation
Mitigation: Torque wrench calibration and installation procedures
Trigger: Cavitation erosion
Failure: Surface pitting and imbalance
Mitigation: Maintain proper NPSH and pump operating parameters

Industrial Ecosystem

Compatible With

Interchangeable Parts

Compliance & Inspection

Tolerance
±0.05 mm on critical dimensions, concentricity within 0.02 mm TIR
Test Method
Dimensional verification with CMM, hydrostatic pressure testing at 1.5x rated pressure, dynamic balance testing per ISO 1940

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

Why use stainless steel for fish pump impeller hubs?

Stainless steel provides optimal corrosion resistance against saltwater, fish waste, and cleaning chemicals while maintaining structural integrity under high pressure and mechanical stress.

How often should impeller hubs be inspected?

Visual inspection every 500 operating hours, with dimensional checks and balance verification during annual maintenance or after impact events.

Can impeller hubs be repaired if damaged?

Minor surface damage can be machined, but replacement is recommended for cracks, significant wear, or balance issues affecting pump performance.

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.

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Impeller Blade Impeller Mounting Hub