---
title: "Pneumatic Valves"
industry: "Motor Vehicle Manufacturing"
verification_protocol:
  urn: "URN:CNFX:ME:PNEUMATIC_VALVES"
  data_integrity_hash: "0da7762583600cfee3fe571ea444825e"
  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:PNEUMATIC_VALVES"
  data_source_uri: "https://cnfx.com/llms/industry/motor-vehicle-manufacturing/product/pneumatic-valves.md"
  official_resource_url: "https://cnfx.com/industry/motor-vehicle-manufacturing/product/pneumatic-valves"
  is_verified_logic: true
attributes:
  spec:
    status: "config-dependent"
    typical_range: "0.5-12 bar"
    unit: "mm"
engineering_limits:
  max_safe_operating_point:
    value: 15
    unit: "bar"
    consequence: "Plastic deformation of valve seat material (NBR rubber) due to excessive compressive stress exceeding yield strength of 7 MPa"
fmea_matrix_quantitative:
  - node_1:
      trigger: "Particulate contamination (ISO 4406 Class 18/16/13) in compressed air supply"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Install 5 μm absolute filtration with automatic drain at compressor outlet"
  - node_2:
      trigger: "Condensate accumulation in valve solenoid (RH &gt; 85% at 25°C)"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Integrate IP67-rated enclosure with desiccant breather and 24V DC moisture-resistant coil"
bom_nodes:
  valve-body:
    type: "part"
    urn: "URN:CNFX:ME:VALVE_BODY"
    interface_type: "physical-logic-coupled"
  solenoid-coil:
    type: "part"
    urn: "URN:CNFX:ME:SOLENOID_COIL"
    interface_type: "physical-logic-coupled"
  spoolpoppet:
    type: "component"
    urn: "URN:CNFX:ME:SPOOLPOPPET"
    interface_type: "physical-logic-coupled"
  seals:
    type: "component"
    urn: "URN:CNFX:ME:SEALS"
    interface_type: "physical-logic-coupled"
  spring:
    type: "component"
    urn: "URN:CNFX:ME:SPRING"
    interface_type: "physical-logic-coupled"
manufacturing_compliance:
url: "https://cnfx.com/llms/industry/motor-vehicle-manufacturing/product/pneumatic-valves.md"
on_chain_sovereignty:
  contract_standard: "ERC-721-Industrial"
  metadata_hash: "0a523629685d3a5996a511104a988de5d8403b3577f101ccd12f22566f6726ee"
  royalty_logic: "IPFS-CID-REQUIRED"
  mint_status: "logic-verified-ready"
version: "3.3.4-EXTREME-SOVEREIGN-WEB3"
---

# Industrial Specification: Pneumatic Valves

## 1. Technical Definition
Control devices that regulate compressed air flow in tire pressure management systems

## 2. Engineering Reasoning & Causal Matrix
> **Operational Intelligence**: Designed for **0.5-12 bar**. Failure boundary: **15 bar (150% of maximum rated pressure)**, Mechanism: **Plastic deformation of valve seat material (NBR rubber) due to excessive compressive stress exceeding yield strength of 7 MPa**.

### 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 (ISO 4406 Class 18/16/13) in compressed air supply | 8 | Valve seat abrasion leading to 0.2 L/min leakage at 8 bar | Install 5 μm absolute filtration with automatic drain at compressor outlet |
| Condensate accumulation in valve solenoid (RH &gt; 85% at 25°C) | 8 | Coil short circuit with resistance drop from 120 Ω to &lt; 5 Ω | Integrate IP67-rated enclosure with desiccant breather and 24V DC moisture-resistant coil |

## 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)`
- [Solenoid Coil](https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/product/solenoid-coil.md) `(Standalone System)`

### Industrial DNA Context (De-duplicated)
**Complementary Dependencies**: **Industrial Air Compressor**, **Air Dryer and Filtration System**, **Programmable Logic Controller (PLC)**  
**Downstream Applications**: Tire Pressure Monitoring Systems (TPMS), Automated Tire Inflation Systems, Vehicle Air Suspension Systems  

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

### Q: What materials are used in these pneumatic valves for motor vehicle manufacturing?
**A**: Our pneumatic valves are constructed from durable materials including brass for corrosion resistance, stainless steel for strength, engineering plastics for lightweight components, and synthetic rubber for reliable seals in tire pressure management systems.

### Q: How do pneumatic valves regulate compressed air in tire pressure systems?
**A**: These valves use a spool or poppet mechanism controlled by a solenoid coil to precisely regulate compressed air flow. When activated, the valve opens or closes to maintain optimal tire pressure, improving vehicle safety and fuel efficiency.

### Q: What are the key components in the BOM for these pneumatic valves?
**A**: The bill of materials includes essential components: valve body (brass/stainless steel), solenoid coil for actuation, spool/poppet for flow control, spring for return mechanism, and synthetic rubber seals to prevent air leaks in the system.

## 6. Manufacturing Compliance

---
### 🛠️ Engineering Resource Access
🔗 **[Full Specification: Pneumatic Valves](https://cnfx.com/industry/motor-vehicle-manufacturing/product/pneumatic-valves)**

### 🌐 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**: PNEUMATIC_VALVES | **Authority**: CNFX-2026-ST-001 | **Fingerprint**: fcfa2863
