---
title: "Safety Vent (CID)"
industry: "Electrical Equipment Manufacturing"
verification_protocol:
  urn: "URN:CNFX:ME:SAFETY_VENT_CID"
  data_integrity_hash: "2c3a8406624e199065541af07d1fdf95"
  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:SAFETY_VENT_CID"
  data_source_uri: "https://cnfx.com/llms/industry/electrical-equipment-manufacturing/product/safety-vent-cid.md"
  official_resource_url: "https://cnfx.com/industry/electrical-equipment-manufacturing/product/safety-vent-cid"
  is_verified_logic: true
attributes:
  spec:
    status: "config-dependent"
    typical_range: "0.1-2.5 bar"
    unit: "kPa"
engineering_limits:
  max_safe_operating_point:
    value: 3.0
    unit: "bar"
    consequence: "Plastic deformation of spring-loaded diaphragm due to yield strength exceedance (spring steel yield strength: 690 MPa)"
fmea_matrix_quantitative:
  - node_1:
      trigger: "Corrosive electrolyte exposure (pH &lt; 4.0)"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "PTFE-coated 316L stainless steel diaphragm with 0.5 mm coating thickness"
  - node_2:
      trigger: "Cyclic pressure loading at 0.5 Hz frequency"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Shot-peened spring surface with compressive residual stress of -400 MPa"
bom_nodes:
  rupture-disc:
    type: "part"
    urn: "URN:CNFX:ME:RUPTURE_DISC"
    interface_type: "physical-logic-coupled"
  vent-housing:
    type: "part"
    urn: "URN:CNFX:ME:VENT_HOUSING"
    interface_type: "physical-logic-coupled"
  sealing-gasket:
    type: "component"
    urn: "URN:CNFX:ME:SEALING_GASKET"
    interface_type: "physical-logic-coupled"
manufacturing_compliance:
url: "https://cnfx.com/llms/industry/electrical-equipment-manufacturing/product/safety-vent-cid.md"
on_chain_sovereignty:
  contract_standard: "ERC-721-Industrial"
  metadata_hash: "009c6fb7a1129c5eff8c77b36c6741e1b8fa984ea9d1a6a6e78d37f563629218"
  royalty_logic: "IPFS-CID-REQUIRED"
  mint_status: "logic-verified-ready"
version: "3.3.4-EXTREME-SOVEREIGN-WEB3"
---

# Industrial Specification: Safety Vent (CID)

## 1. Technical Definition
A pressure relief device integrated into the Cell Housing Assembly to prevent dangerous pressure buildup.

## 2. Engineering Reasoning & Causal Matrix
> **Operational Intelligence**: Designed for **0.1-2.5 bar**. Failure boundary: **3.0 bar differential pressure**, Mechanism: **Plastic deformation of spring-loaded diaphragm due to yield strength exceedance (spring steel yield strength: 690 MPa)**.

### 2.1 Analytical Physics Model
Governed by the **Thin-Wall Pressure Vessel Stress Analysis**:

> **Primary Equation**: $\sigma_h = \frac{P \cdot D}{2t}$  
> **Engineering Impact**: Determines the hoop stress boundary to prevent rupture.

| Symbol | Variable Definition | Localized Reference |
| :--- | :--- | :--- |
| P | Internal Pressure | Engineering Constant |
| D | Diameter | Engineering Constant |
| t | Wall Thickness | Engineering Constant |

### 2.2 FMEA (Failure Mode & Effects Analysis)
| Event Trigger | Severity | Failure Mode | Mitigation Strategy |
| :--- | :--- | :--- | :--- |
| Corrosive electrolyte exposure (pH &lt; 4.0) | 8 | Diaphragm pitting corrosion leading to seal failure | PTFE-coated 316L stainless steel diaphragm with 0.5 mm coating thickness |
| Cyclic pressure loading at 0.5 Hz frequency | 8 | Spring fatigue fracture at stress concentration points | Shot-peened spring surface with compressive residual stress of -400 MPa |

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

## 4. System BOM & Knowledge Routing
### Core Components (Recursive Links)
- [Rupture Disc](https://cnfx.com/llms/industry/chemical-manufacturing/product/rupture-disc.md) `(Standalone System)`
- [Vent Housing](https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/product/vent-housing.md) `(Standalone System)`

### Industrial DNA Context (De-duplicated)
**Complementary Dependencies**: **Pressure Testing Station**, **Automated Assembly Line**, **Leak Detection System**  
**Downstream Applications**: Lithium-Ion Battery Packs, Electric Vehicle Battery Modules, Industrial UPS Battery Systems  

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

### Q: What is the primary function of the Safety Vent (CID) in electrical equipment?
**A**: The Safety Vent (CID) acts as a pressure relief device integrated into the Cell Housing Assembly to prevent dangerous pressure buildup that could lead to equipment failure or safety hazards.

### Q: What materials are used in the construction of this safety vent?
**A**: This safety vent is constructed from durable materials including nickel-plated steel and stainless steel for the housing components, along with a polymer composite membrane that provides reliable pressure relief.

### Q: What are the main components in the Safety Vent (CID) BOM?
**A**: The Bill of Materials includes three key components: the Rupture Disc that activates under pressure, the Vent Housing that contains the assembly, and the Sealing Gasket that ensures proper installation and prevents leaks.

## 6. Manufacturing Compliance

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### 🛠️ Engineering Resource Access
🔗 **[Full Specification: Safety Vent (CID)](https://cnfx.com/industry/electrical-equipment-manufacturing/product/safety-vent-cid)**

### 🌐 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**: SAFETY_VENT_CID | **Authority**: CNFX-2026-ST-001 | **Fingerprint**: 11946659
