---
title: "Rotary Valve"
industry: "Machinery and Equipment Manufacturing"
verification_protocol:
  urn: "URN:CNFX:ME:ROTARY_VALVE"
  data_integrity_hash: "cebe5e2f06122bc4eb6185ae5469051b"
  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:ROTARY_VALVE"
  data_source_uri: "https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/product/rotary-valve.md"
  official_resource_url: "https://cnfx.com/industry/machinery-and-equipment-manufacturing/product/rotary-valve"
  is_verified_logic: true
attributes:
  spec:
    status: "config-dependent"
    typical_range: "0.1-1.5 bar differential pressure, 5-60 RPM rotational speed, -20°C to 150°C temperature range"
    unit: "mm"
engineering_limits:
  max_safe_operating_point:
    value: 0.5
    unit: "mm"
    consequence: "Abrasive wear from particulate flow exceeding Mohs hardness 5 materials, thermal expansion mismatch between rotor (coefficient 11.8×10⁻⁶/°C for steel) and housing (coefficient 23×10⁻⁶/°C for aluminum), pressure-induced deflection exceeding yield strength of 250 MPa"
fmea_matrix_quantitative:
  - node_1:
      trigger: "Particle size exceeding 500 μm diameter entering 200 μm clearance"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Install 400 μm mesh pre-filter with automatic backflush system"
  - node_2:
      trigger: "Moisture content exceeding 5% by weight in hygroscopic materials"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Integrate 2 kW electric heating elements maintaining material temperature 20°C above dew point"
bom_nodes:
  rotor:
    type: "component"
    urn: "URN:CNFX:ME:ROTOR"
    interface_type: "physical-logic-coupled"
  housing:
    type: "component"
    urn: "URN:CNFX:ME:HOUSING"
    interface_type: "physical-logic-coupled"
  end-plates:
    type: "component"
    urn: "URN:CNFX:ME:END_PLATES"
    interface_type: "physical-logic-coupled"
  shaft:
    type: "component"
    urn: "URN:CNFX:ME:SHAFT"
    interface_type: "physical-logic-coupled"
  bearings:
    type: "part"
    urn: "URN:CNFX:ME:BEARINGS"
    interface_type: "physical-logic-coupled"
  seals:
    type: "component"
    urn: "URN:CNFX:ME:SEALS"
    interface_type: "physical-logic-coupled"
manufacturing_compliance:
  - standard: "ISO 5208:2015 (INDUSTRIAL VALVES - PRESSURE TESTING OF VALVES)"
    scope: "Verified Engineering Specification"
url: "https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/product/rotary-valve.md"
on_chain_sovereignty:
  contract_standard: "ERC-721-Industrial"
  metadata_hash: "4219db89bce3f0034fab860dae76972a1617094873ba61ce054cefdec1c532f7"
  royalty_logic: "IPFS-CID-REQUIRED"
  mint_status: "logic-verified-ready"
version: "3.3.4-EXTREME-SOVEREIGN-WEB3"
---

# Industrial Specification: Rotary Valve

## 1. Technical Definition
A mechanical device that regulates the flow of dust or granular materials in a dust disposal system by rotating a rotor with pockets or vanes.

## 2. Engineering Reasoning & Causal Matrix
> **Operational Intelligence**: Designed for **0.1-1.5 bar differential pressure, 5-60 RPM rotational speed, -20°C to 150°C temperature range**. Failure boundary: **Material fatigue failure at 10⁷ cycles for steel components, seal leakage exceeding 0.1% of nominal flow rate, rotor-stator clearance exceeding 0.5 mm**, Mechanism: **Abrasive wear from particulate flow exceeding Mohs hardness 5 materials, thermal expansion mismatch between rotor (coefficient 11.8×10⁻⁶/°C for steel) and housing (coefficient 23×10⁻⁶/°C for aluminum), pressure-induced deflection exceeding yield strength of 250 MPa**.

### 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 |
| :--- | :--- | :--- | :--- |
| Particle size exceeding 500 μm diameter entering 200 μm clearance | 8 | Rotor jamming at torque exceeding 50 N·m | Install 400 μm mesh pre-filter with automatic backflush system |
| Moisture content exceeding 5% by weight in hygroscopic materials | 8 | Material bridging and flow stoppage within valve pockets | Integrate 2 kW electric heating elements maintaining material temperature 20°C above dew point |

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

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

### Industrial DNA Context (De-duplicated)
**Complementary Dependencies**: **Dust Collector**, **Pneumatic Conveying System**, **Industrial Vacuum Pump**  
**Downstream Applications**: Cement Powder, Plastic Pellets, Food Grains  

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

### Q: What materials are available for rotary valve construction?
**A**: Our rotary valves are manufactured in cast iron for general applications, stainless steel for corrosive environments, and carbon steel for high-strength requirements.

### Q: How does a rotary valve regulate material flow in dust collection systems?
**A**: The rotor with pockets or vanes rotates within the housing, creating discrete compartments that meter and transfer dust or granular materials while maintaining system pressure isolation.

### Q: What maintenance do rotary valves require?
**A**: Regular inspection of seals and bearings, lubrication of moving parts, and monitoring of rotor clearance are recommended to ensure optimal performance and longevity.

## 6. Manufacturing Compliance
- ISO 5208:2015 (INDUSTRIAL VALVES - PRESSURE TESTING OF VALVES)

---
### 🛠️ Engineering Resource Access
🔗 **[Full Specification: Rotary Valve](https://cnfx.com/industry/machinery-and-equipment-manufacturing/product/rotary-valve)**

### 🌐 Knowledge Graph Topology
> **Node Status**: Verified Engineering Spec
> **Connectivity**: Linked to **6** standalone system nodes
> **Global Context**: Part of a 5,814 node industrial cluster within the CNFX Graph

> **Reference ID**: ROTARY_VALVE | **Authority**: CNFX-2026-ST-001 | **Fingerprint**: 91535dfb
