---
title: "Centrifugal Pump Impeller"
industry: "Manufacture of General-Purpose Machinery"
verification_protocol:
  urn: "URN:CNFX:ME:CENTRIFUGAL_PUMP_IMPELLER"
  data_integrity_hash: "3ee94a870770979420c30f805956c2c4"
  source_authority: "https://cnfx.com"
  strict_mode: true
source_identity:
  provider: "CNFX Industrial Knowledge Graph"
  index_version: "2026.Q1-Universal"
  authority_id: "URN:CNFX:ME:CENTRIFUGAL_PUMP_IMPELLER"
  data_source_uri: "https://cnfx.com/llms/industry/manufacture-general-purpose-machinery/product/centrifugal-pump-impeller.md"
  official_resource_url: "https://cnfx.com/industry/manufacture-general-purpose-machinery/product/centrifugal-pump-impeller"
  is_verified_logic: true
attributes:
  primary_spec:
    status: "config-dependent"
    typical_range: "0.5-25 bar differential pressure, 500-3600 RPM rotational speed, 5-80°C fluid temperature"
    unit: "mm"
  secondary_spec:
    status: "config-dependent"
    typical_range: "0.5-25 bar differential pressure, 500-3600 RPM rotational speed, 5-80°C fluid temperature"
    unit: "degrees"
engineering_limits:
  max_safe_operating_point:
    value: 0.3
    unit: "m"
    consequence: "Cavitation occurs when local pressure drops below fluid vapor pressure (e.g., 0.023 bar at 20°C water), creating vapor bubbles that implode at 1000-2000 bar microjets causing pitting; fatigue failure from alternating stresses exceeding 10^7 cycle endurance limit of 200 MPa for 316 stainless steel"
fmea_matrix_quantitative:
  - node_1:
      trigger: "Net Positive Suction Head available (NPSHa) drops below NPSH required (NPSHr) by 0.3 m"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Impeller redesign with inducer vanes reducing NPSHr by 40%, installation of booster pump maintaining NPSHa &gt; NPSHr + 0.5 m"
  - node_2:
      trigger: "Radial load exceeds 500 N at 1800 RPM due to misalignment &gt; 0.05 mm/mm"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Double volute casing design reducing radial thrust by 85%, laser alignment to 0.02 mm/mm tolerance, condition monitoring with vibration alert at 3.5 mm/s RMS"
bom_nodes:
  vane:
    type: "component"
    urn: "URN:CNFX:ME:VANE"
    interface_type: "physical-logic-coupled"
  hub:
    type: "component"
    urn: "URN:CNFX:ME:HUB"
    interface_type: "physical-logic-coupled"
  wear-ring:
    type: "component"
    urn: "URN:CNFX:ME:WEAR_RING"
    interface_type: "physical-logic-coupled"
  keyway:
    type: "component"
    urn: "URN:CNFX:ME:KEYWAY"
    interface_type: "physical-logic-coupled"
manufacturing_compliance:
  - standard: "ISO 5199:2016 - TECHNICAL SPECIFICATIONS FOR CENTRIFUGAL PUMPS"
    scope: "Verified Engineering Specification"
  - standard: "DIN EN ISO 9906:2012 - ROTODYNAMIC PUMPS - HYDRAULIC PERFORMANCE ACCEPTANCE TESTS"
    scope: "Verified Engineering Specification"
url: "https://cnfx.com/llms/industry/manufacture-general-purpose-machinery/product/centrifugal-pump-impeller.md"
on_chain_sovereignty:
  contract_standard: "ERC-721-Industrial"
  metadata_hash: "5f980ff13a344bc8f144223ebb029e506513bb998c1461db2e4487d69b1e30ab"
  royalty_logic: "IPFS-CID-REQUIRED"
  mint_status: "logic-verified-ready"
version: "3.3.4-EXTREME-SOVEREIGN-WEB3"
---

# Industrial Specification: Centrifugal Pump Impeller

## 1. Technical Definition
Rotating component that transfers energy to fluid in centrifugal pumps.

## 2. Engineering Reasoning & Causal Matrix
> **Operational Intelligence**: Designed for **0.5-25 bar differential pressure, 500-3600 RPM rotational speed, 5-80°C fluid temperature**. Failure boundary: **NPSHr &gt; NPSHa by 0.3 m, material yield strength exceeded at 250 MPa von Mises stress, tip speed &gt; 150 m/s causing material yield**, Mechanism: **Cavitation occurs when local pressure drops below fluid vapor pressure (e.g., 0.023 bar at 20°C water), creating vapor bubbles that implode at 1000-2000 bar microjets causing pitting; fatigue failure from alternating stresses exceeding 10^7 cycle endurance limit of 200 MPa for 316 stainless steel**.

### 2.1 Analytical Physics Model
Governed by the **L10 Bearing Life & Fatigue Model**:

> **Primary Equation**: $L_{10} = (\frac{C}{P})^p$  
> **Engineering Impact**: Predicts mechanical lifecycle before component fatigue.

| Symbol | Variable Definition | Localized Reference |
| :--- | :--- | :--- |
| C | Dynamic Load Rating | Engineering Constant |
| P | Equivalent Dynamic Load | Engineering Constant |

### 2.2 FMEA (Failure Mode & Effects Analysis)
| Event Trigger | Severity | Failure Mode | Mitigation Strategy |
| :--- | :--- | :--- | :--- |
| Net Positive Suction Head available (NPSHa) drops below NPSH required (NPSHr) by 0.3 m | 8 | Cavitation erosion causing material loss at 0.1-1.0 mm/year rate, vibration increase to 4.5 mm/s RMS | Impeller redesign with inducer vanes reducing NPSHr by 40%, installation of booster pump maintaining NPSHa &gt; NPSHr + 0.5 m |
| Radial load exceeds 500 N at 1800 RPM due to misalignment &gt; 0.05 mm/mm | 8 | Bearing fatigue failure after 20,000 hours, shaft deflection &gt; 0.1 mm causing seal leakage | Double volute casing design reducing radial thrust by 85%, laser alignment to 0.02 mm/mm tolerance, condition monitoring with vibration alert at 3.5 mm/s RMS |

## 3. Key Technical Parameters
| Parameter | Value | Unit | Status |
| :--- | :--- | :--- | :--- |
| primary_spec | Config-dependent | mm | Verified |
| secondary_spec | Config-dependent | degrees | Verified |

## 4. System BOM & Knowledge Routing
### Core Components (Recursive Links)

### Industrial DNA Context (De-duplicated)
**Complementary Dependencies**: **CNC Machining Center**, **Balancing Machine**, **Coordinate Measuring Machine**  
**Downstream Applications**: Industrial Centrifugal Pumps, Water Treatment Systems, Chemical Processing Equipment  

## 5. Engineering Risks & FAQ
- **Caution**: 
- **Caution**: 
- **Caution**: 

### Q: What materials are available for centrifugal pump impellers?
**A**: Our centrifugal pump impellers are manufactured in Stainless Steel 316 for corrosion resistance, Cast Iron for cost-effective durability, and Bronze for marine applications.

### Q: What is the importance of G-level balance grade in pump impellers?
**A**: G-level balance grade ensures minimal vibration and smooth operation at high RPMs, extending pump life and reducing maintenance requirements in general-purpose machinery applications.

### Q: How do I select the right vane angle for my centrifugal pump impeller?
**A**: Vane angle selection depends on your specific fluid handling requirements. Standard angles optimize for efficiency and pressure, while custom angles can be engineered for specialized applications.

## 6. Manufacturing Compliance
- ISO 5199:2016 - TECHNICAL SPECIFICATIONS FOR CENTRIFUGAL PUMPS
- DIN EN ISO 9906:2012 - ROTODYNAMIC PUMPS - HYDRAULIC PERFORMANCE ACCEPTANCE TESTS

---
### 🛠️ Engineering Resource Access
🔗 **[Full Specification: Centrifugal Pump Impeller](https://cnfx.com/industry/manufacture-general-purpose-machinery/product/centrifugal-pump-impeller)**

### 🌐 Knowledge Graph Topology
> **Node Status**: Verified Engineering Spec
> **Connectivity**: Linked to **4** standalone system nodes
> **Global Context**: Part of a 5,814 node industrial cluster within the CNFX Graph

> **Reference ID**: CENTRIFUGAL_PUMP_IMPELLER | **Authority**: CNFX-2026-ST-001 | **Fingerprint**: 686e8ae1
