---
title: "Agitator/Stirrer"
industry: "Machinery and Equipment Manufacturing"
verification_protocol:
  urn: "URN:CNFX:ME:AGITATORSTIRRER"
  data_integrity_hash: "e0254924f075482a8f34f27b7c6d4e16"
  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:AGITATORSTIRRER"
  data_source_uri: "https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/product/agitatorstirrer.md"
  official_resource_url: "https://cnfx.com/industry/machinery-and-equipment-manufacturing/product/agitatorstirrer"
  is_verified_logic: true
attributes:
  spec:
    status: "config-dependent"
    typical_range: "0.1-15 m/s tip speed, 0.5-1000 Pa·s fluid viscosity, 0-150°C fluid temperature"
    unit: "mm"
engineering_limits:
  max_safe_operating_point:
    value: 10
    unit: "life"
    consequence: "Bearing fatigue failure due to Hertzian contact stress exceeding 2.1 GPa, shaft resonance at 1.2× operating frequency, fluid cavitation at NPSHa &lt; NPSHr + 0.5 m"
fmea_matrix_quantitative:
  - node_1:
      trigger: "Bearing lubricant degradation at 80°C for &gt;1000 hours"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Integrate PT100 temperature sensors with automatic shutdown at 75°C, implement oil analysis every 500 hours"
  - node_2:
      trigger: "Shaft misalignment &gt; 0.05 mm at coupling face"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Install laser alignment system with 0.01 mm precision, implement quarterly alignment verification protocol"
bom_nodes:
  shaft:
    type: "component"
    urn: "URN:CNFX:ME:SHAFT"
    interface_type: "physical-logic-coupled"
  impeller:
    type: "part"
    urn: "URN:CNFX:ME:IMPELLER"
    interface_type: "physical-logic-coupled"
  seal:
    type: "component"
    urn: "URN:CNFX:ME:SEAL"
    interface_type: "physical-logic-coupled"
manufacturing_compliance:
  - standard: "ISO 2858:2012 - END-SUCTION CENTRIFUGAL PUMPS (DESIGNATION, NOMINAL DUTY POINT AND DIMENSIONS)"
    scope: "Verified Engineering Specification"
  - standard: "ANSI/ASME B73.1-2012 - SPECIFICATION FOR HORIZONTAL END SUCTION CENTRIFUGAL PUMPS FOR CHEMICAL PROCESS"
    scope: "Verified Engineering Specification"
  - standard: "DIN 28136:2014 - AGITATORS - MOUNTING DIMENSIONS FOR AGITATOR DRIVES IN VESSELS"
    scope: "Verified Engineering Specification"
url: "https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/product/agitatorstirrer.md"
on_chain_sovereignty:
  contract_standard: "ERC-721-Industrial"
  metadata_hash: "78fec8de23f0a3258abc73b13373e31f8256c2fdc91ba68f659dadec96d87046"
  royalty_logic: "IPFS-CID-REQUIRED"
  mint_status: "logic-verified-ready"
version: "3.3.4-EXTREME-SOVEREIGN-WEB3"
---

# Industrial Specification: Agitator/Stirrer

## 1. Technical Definition
A mechanical device used to mix, blend, or agitate fluids within a container.

## 2. Engineering Reasoning & Causal Matrix
> **Operational Intelligence**: Designed for **0.1-15 m/s tip speed, 0.5-1000 Pa·s fluid viscosity, 0-150°C fluid temperature**. Failure boundary: **Bearing L10 life &lt; 10000 hours at 1.5× rated load, shaft deflection &gt; 0.1 mm/m length, impeller tip speed &gt; 25 m/s**, Mechanism: **Bearing fatigue failure due to Hertzian contact stress exceeding 2.1 GPa, shaft resonance at 1.2× operating frequency, fluid cavitation at NPSHa &lt; NPSHr + 0.5 m**.

### 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 |
| :--- | :--- | :--- | :--- |
| Bearing lubricant degradation at 80°C for &gt;1000 hours | 8 | Increased vibration amplitude &gt; 4.5 mm/s RMS at 2× line frequency | Integrate PT100 temperature sensors with automatic shutdown at 75°C, implement oil analysis every 500 hours |
| Shaft misalignment &gt; 0.05 mm at coupling face | 8 | Seal leakage exceeding 5 ml/hour, bearing temperature rise of 15°C above ambient | Install laser alignment system with 0.01 mm precision, implement quarterly alignment verification protocol |

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

## 4. System BOM & Knowledge Routing
### Core Components (Recursive Links)
- [Impeller](https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/product/impeller.md) `(Standalone System)`

### Industrial DNA Context (De-duplicated)
**Complementary Dependencies**: **Variable Frequency Drive**, **Process Control System**, **Seal Flush System**  
**Downstream Applications**: Paints and Coatings, Pharmaceutical Solutions, Food and Beverage Mixes  

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

### Q: What materials are best for corrosive fluid applications?
**A**: For corrosive environments, 316L stainless steel agitators provide superior resistance compared to 304 stainless or carbon steel, especially for chemicals, acids, or saline solutions.

### Q: How do I select the right impeller type for my mixing needs?
**A**: Impeller selection depends on fluid viscosity and mixing goal: axial flow impellers for blending low-viscosity fluids, radial flow for high-shear dispersion, and specialized designs for solids suspension or gas dispersion.

### Q: What maintenance is required for agitator seals and shafts?
**A**: Regular inspection of mechanical seals for wear and leakage, lubrication of bearings, and alignment checks of the shaft are essential. Seal life varies with operating pressure, temperature, and fluid abrasiveness.

## 6. Manufacturing Compliance
- ISO 2858:2012 - END-SUCTION CENTRIFUGAL PUMPS (DESIGNATION, NOMINAL DUTY POINT AND DIMENSIONS)
- ANSI/ASME B73.1-2012 - SPECIFICATION FOR HORIZONTAL END SUCTION CENTRIFUGAL PUMPS FOR CHEMICAL PROCESS
- DIN 28136:2014 - AGITATORS - MOUNTING DIMENSIONS FOR AGITATOR DRIVES IN VESSELS

---
### 🛠️ Engineering Resource Access
🔗 **[Full Specification: Agitator/Stirrer](https://cnfx.com/industry/machinery-and-equipment-manufacturing/product/agitatorstirrer)**

### 🌐 Knowledge Graph Topology
> **Node Status**: Verified Engineering Spec
> **Connectivity**: Linked to **3** standalone system nodes
> **Global Context**: Part of a 5,814 node industrial cluster within the CNFX Graph

> **Reference ID**: AGITATORSTIRRER | **Authority**: CNFX-2026-ST-001 | **Fingerprint**: 280ac87d
