INDUSTRY COMPONENT

Vanes

Vanes are rotating blades in primary roughing pumps that transfer energy to fluids through centrifugal force.

Component Specifications

Definition
Vanes are precision-engineered rotating components in primary (roughing) pumps that convert mechanical energy from the pump shaft into fluid kinetic energy. They are strategically positioned within the pump impeller or rotor assembly to create centrifugal force, which accelerates the fluid radially outward, increasing its pressure and velocity for efficient material transfer in industrial vacuum and pumping systems.
Working Principle
Vanes operate on the centrifugal principle: as the pump shaft rotates, vanes spin within the housing, creating a low-pressure zone at the center that draws fluid in. The fluid is then accelerated radially outward by the vanes' curved surfaces, converting rotational energy into fluid pressure and kinetic energy for discharge.
Materials
Typically manufactured from wear-resistant materials such as carbon graphite, PTFE (Teflon), or engineered composites for dry-running applications; stainless steel (e.g., 316L) or coated alloys for corrosive or wet environments; and ceramic or hardened steel for high-abrasion conditions.
Technical Parameters
ParameterTypical rangeNotes & selection driver
Thickness3-20 mm
Diameter Range50-500 mm
Surface FinishRa 0.4-1.6 μm
Operating Speed500-6000 RPM
Pressure HandlingUp to 10 bar
Temperature Range-20°C to 200°C

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, DIN 24256

Parent Products

This component is used in the following industrial products

Engineering Analysis

Risks & Mitigation
  • Wear and tear from abrasion
  • Imbalance causing vibration
  • Corrosion in harsh environments
  • Cavitation damage
  • Thermal expansion issues
FMEA Triads
Trigger: Abrasive particles in fluid
Failure: Excessive vane wear leading to reduced efficiency and pressure drop
Mitigation: Use hardened or coated materials; install filtration systems; implement regular inspection schedules
Trigger: Improper installation or misalignment
Failure: Vane imbalance causing vibration, noise, and premature bearing failure
Mitigation: Follow precise installation procedures; use balancing equipment; conduct alignment checks during maintenance
Trigger: Operation beyond design limits
Failure: Thermal deformation or cracking of vanes
Mitigation: Monitor operating temperatures; ensure proper cooling; adhere to specified speed and pressure ranges

Industrial Ecosystem

Compatible With

Typical Suppliers & Equivalents

Compliance & Inspection

Tolerance
±0.05 mm on critical dimensions, radial runout <0.01 mm
Test Method
Dimensional inspection via CMM, balance testing per ISO 1940-1, material verification through spectroscopy, and performance testing in accordance with ISO 5199 standards

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 Vanes

Manufacturer profiles associated with Vanes.

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Frequently Asked Questions

What is the primary function of vanes in a roughing pump?

Vanes transfer mechanical energy from the pump shaft to the fluid by creating centrifugal force, which increases fluid pressure and velocity for efficient pumping.

How do vanes differ in dry vs. wet pump applications?

In dry pumps, vanes are often made from self-lubricating materials like carbon graphite to minimize friction, while wet pumps use corrosion-resistant materials like stainless steel and rely on fluid for lubrication.

What maintenance is required for pump vanes?

Regular inspection for wear, clearance checks, and replacement when thickness reduces beyond tolerance; lubrication if applicable; and cleaning to prevent buildup that affects balance.

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.

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