---
title: "Air Valve (Spool/Shuttle)"
industry: "Machinery and Equipment Manufacturing"
verification_protocol:
  urn: "URN:CNFX:ME:AIR_VALVE_SPOOLSHUTTLE"
  data_integrity_hash: "af1b9c9a6df648e02f4361f952b02320"
  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:AIR_VALVE_SPOOLSHUTTLE"
  data_source_uri: "https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/product/air-valve-spoolshuttle.md"
  official_resource_url: "https://cnfx.com/industry/machinery-and-equipment-manufacturing/product/air-valve-spoolshuttle"
  is_verified_logic: true
attributes:
  spec:
    status: "config-dependent"
    typical_range: "0.5-10 bar (50-1000 kPa)"
    unit: "mm"
engineering_limits:
  max_safe_operating_point:
    value: 12
    unit: "bar"
    consequence: "Bernoulli principle causing pressure differential across spool lands exceeding 12 bar creates hydraulic lock through fluid entrapment in clearance gaps (5-15 μm)"
fmea_matrix_quantitative:
  - node_1:
      trigger: "Particulate contamination exceeding ISO 4406 Class 18/16/13"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "5 μm absolute filtration with beta₅≥200 at valve inlet"
  - node_2:
      trigger: "Condensate accumulation reducing lubricity below 0.15 coefficient of friction"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Desiccant dryer maintaining -40°C dew point with automatic drainage"
bom_nodes:
  valve-body:
    type: "part"
    urn: "URN:CNFX:ME:VALVE_BODY"
    interface_type: "physical-logic-coupled"
  spoolshuttle:
    type: "component"
    urn: "URN:CNFX:ME:SPOOLSHUTTLE"
    interface_type: "physical-logic-coupled"
  seals-o-rings:
    type: "component"
    urn: "URN:CNFX:ME:SEALS_O_RINGS"
    interface_type: "physical-logic-coupled"
  actuator-e-g-solenoid-coil:
    type: "part"
    urn: "URN:CNFX:ME:ACTUATOR_E_G_SOLENOID_COIL"
    interface_type: "physical-logic-coupled"
  spring-if-applicable:
    type: "component"
    urn: "URN:CNFX:ME:SPRING_IF_APPLICABLE"
    interface_type: "physical-logic-coupled"
manufacturing_compliance:
url: "https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/product/air-valve-spoolshuttle.md"
on_chain_sovereignty:
  contract_standard: "ERC-721-Industrial"
  metadata_hash: "492aee1501a8bbd81e549aa6e8fd3c15543b1de6db5294f98a53668d3ef56399"
  royalty_logic: "IPFS-CID-REQUIRED"
  mint_status: "logic-verified-ready"
version: "3.3.4-EXTREME-SOVEREIGN-WEB3"
---

# Industrial Specification: Air Valve (Spool/Shuttle)

## 1. Technical Definition
A directional control valve that regulates airflow in pneumatic systems by shifting a spool or shuttle mechanism.

## 2. Engineering Reasoning & Causal Matrix
> **Operational Intelligence**: Designed for **0.5-10 bar (50-1000 kPa)**. Failure boundary: **Spool seizure at 12 bar differential pressure due to hydraulic lock**, Mechanism: **Bernoulli principle causing pressure differential across spool lands exceeding 12 bar creates hydraulic lock through fluid entrapment in clearance gaps (5-15 μm)**.

### 2.1 Analytical Physics Model
Governed by the **Pneumatic Actuator Theoretical Force**:

> **Primary Equation**: $F = P \cdot A \cdot \eta_{eff}$  
> **Engineering Impact**: Calculates real-world pushing/clamping force for rejectors.

| Symbol | Variable Definition | Localized Reference |
| :--- | :--- | :--- |
| P | Air Pressure | Engineering Constant |
| A | Cylinder Area | Engineering Constant |

### 2.2 FMEA (Failure Mode & Effects Analysis)
| Event Trigger | Severity | Failure Mode | Mitigation Strategy |
| :--- | :--- | :--- | :--- |
| Particulate contamination exceeding ISO 4406 Class 18/16/13 | 8 | Spool stiction causing 0.5+ second response delay | 5 μm absolute filtration with beta₅≥200 at valve inlet |
| Condensate accumulation reducing lubricity below 0.15 coefficient of friction | 8 | Shuttle galling at sliding surfaces | Desiccant dryer maintaining -40°C dew point with automatic drainage |

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

## 4. System BOM & Knowledge Routing
### Core Components (Recursive Links)
- [Valve Body](https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/product/valve-body.md) `(Standalone System)`
- [Actuator (e.g., Solenoid Coil)](https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/product/actuator-e-g-solenoid-coil.md) `(Standalone System)`

### Industrial DNA Context (De-duplicated)
**Complementary Dependencies**: **Air Compressor**, **Air Dryer**, **FRL Unit (Filter-Regulator-Lubricator)**  
**Downstream Applications**: Packaging Machinery, Automated Assembly Systems, Material Handling Equipment  

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

### Q: What materials are available for your air valves?
**A**: Our air valves are manufactured in brass, stainless steel, aluminum, and engineering plastics like POM and nylon for various industrial applications.

### Q: How does the spool/shuttle mechanism work in these valves?
**A**: The spool or shuttle shifts position to direct airflow through different ports, controlling the direction of pneumatic actuators with precision and reliability.

### Q: What maintenance do these valves require?
**A**: Regular inspection of seals (O-rings) and cleaning of the valve body are recommended. The spool/shuttle mechanism is designed for long service life with minimal maintenance.

## 6. Manufacturing Compliance

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

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

> **Reference ID**: AIR_VALVE_SPOOLSHUTTLE | **Authority**: CNFX-2026-ST-001 | **Fingerprint**: 25d4c8f2
