---
title: "Filling Nozzle Assembly"
industry: "Electrical Equipment Manufacturing"
verification_protocol:
  urn: "URN:CNFX:ME:FILLING_NOZZLE_ASSEMBLY"
  data_integrity_hash: "e9f9a5092fab717f978b09a234e9484a"
  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:FILLING_NOZZLE_ASSEMBLY"
  data_source_uri: "https://cnfx.com/llms/industry/electrical-equipment-manufacturing/product/filling-nozzle-assembly.md"
  official_resource_url: "https://cnfx.com/industry/electrical-equipment-manufacturing/product/filling-nozzle-assembly"
  is_verified_logic: true
attributes:
  spec:
    status: "config-dependent"
    typical_range: "0.8-1.2 bar (12-17.4 psi) at 25°C with 1.0±0.05 mm orifice diameter"
    unit: "mm"
engineering_limits:
  max_safe_operating_point:
    value: 0.023
    unit: "bar"
    consequence: "Bernoulli's principle: Pressure drop across orifice (ΔP=ρv²/2) reduces local pressure below electrolyte vapor pressure, forming vapor bubbles that collapse downstream causing erosion (cavitation damage rate &gt;0.1 mm/year at 10⁸ bubble collapses)"
fmea_matrix_quantitative:
  - node_1:
      trigger: "Electrolyte crystallization at nozzle tip due to ΔT&gt;5°C between electrolyte (25°C) and ambient (20°C)"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Peltier heating element maintaining nozzle tip at 30±0.5°C with PID control (Kp=2.5, Ki=0.1, Kd=0.05)"
  - node_2:
      trigger: "Solenoid coil insulation breakdown at &gt;85°C (Class B insulation limit) due to I²R heating at &gt;12V DC continuous"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "PTFE-coated magnet wire with 155°C thermal rating and current limiting to 0.8A via PWM at 25kHz"
bom_nodes:
  nozzle-bodyhousing:
    type: "component"
    urn: "URN:CNFX:ME:NOZZLE_BODYHOUSING"
    interface_type: "physical-logic-coupled"
  nozzle-tiporifice:
    type: "component"
    urn: "URN:CNFX:ME:NOZZLE_TIPORIFICE"
    interface_type: "physical-logic-coupled"
  solenoid-valve:
    type: "part"
    urn: "URN:CNFX:ME:SOLENOID_VALVE"
    interface_type: "physical-logic-coupled"
  sealsgaskets:
    type: "component"
    urn: "URN:CNFX:ME:SEALSGASKETS"
    interface_type: "physical-logic-coupled"
  sensor-port-optional:
    type: "component"
    urn: "URN:CNFX:ME:SENSOR_PORT_OPTIONAL"
    interface_type: "physical-logic-coupled"
manufacturing_compliance:
  - standard: "ISO 9001:2015 - QUALITY MANAGEMENT SYSTEMS"
    scope: "Verified Engineering Specification"
url: "https://cnfx.com/llms/industry/electrical-equipment-manufacturing/product/filling-nozzle-assembly.md"
on_chain_sovereignty:
  contract_standard: "ERC-721-Industrial"
  metadata_hash: "d9c87852d8138d27cfe6a8c9dd9536666d495324596eeee4f96455c14cb4eee6"
  royalty_logic: "IPFS-CID-REQUIRED"
  mint_status: "logic-verified-ready"
version: "3.3.4-EXTREME-SOVEREIGN-WEB3"
---

# Industrial Specification: Filling Nozzle Assembly

## 1. Technical Definition
A precision assembly that controls the dispensing of electrolyte into battery cells during the filling process.

## 2. Engineering Reasoning & Causal Matrix
> **Operational Intelligence**: Designed for **0.8-1.2 bar (12-17.4 psi) at 25°C with 1.0±0.05 mm orifice diameter**. Failure boundary: **Cavitation occurs at vapor pressure ≤0.023 bar absolute (0.33 psi) for aqueous electrolytes at 25°C, causing flow instability exceeding ±15% from setpoint**, Mechanism: **Bernoulli's principle: Pressure drop across orifice (ΔP=ρv²/2) reduces local pressure below electrolyte vapor pressure, forming vapor bubbles that collapse downstream causing erosion (cavitation damage rate &gt;0.1 mm/year at 10⁸ bubble collapses)**.

### 2.1 Analytical Physics Model
Governed by the **Darcy-Weisbach Pressure Drop**:

> **Primary Equation**: $\Delta P = f \cdot \frac{L}{D} \cdot \frac{\rho v^2}{2}$  
> **Engineering Impact**: Critical for sizing CIP (Clean-In-Place) pump heads.

| Symbol | Variable Definition | Localized Reference |
| :--- | :--- | :--- |
| f | Friction Factor | Engineering Constant |
| L | Pipe Length | Engineering Constant |
| v | Velocity | Engineering Constant |

### 2.2 FMEA (Failure Mode & Effects Analysis)
| Event Trigger | Severity | Failure Mode | Mitigation Strategy |
| :--- | :--- | :--- | :--- |
| Electrolyte crystallization at nozzle tip due to ΔT&gt;5°C between electrolyte (25°C) and ambient (20°C) | 8 | Flow restriction increasing from 1.0 L/min to &lt;0.3 L/min within 30 cycles | Peltier heating element maintaining nozzle tip at 30±0.5°C with PID control (Kp=2.5, Ki=0.1, Kd=0.05) |
| Solenoid coil insulation breakdown at &gt;85°C (Class B insulation limit) due to I²R heating at &gt;12V DC continuous | 8 | Stuck-open valve causing overfill exceeding 115% of cell volume specification | PTFE-coated magnet wire with 155°C thermal rating and current limiting to 0.8A via PWM at 25kHz |

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

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

### Industrial DNA Context (De-duplicated)
**Complementary Dependencies**: **Electrolyte Mixing System**, **Battery Cell Conveyor System**, **Vacuum Degassing Unit**  
**Downstream Applications**: Lithium-ion Battery Cells, Lead-acid Battery Cells, Nickel-metal Hydride Battery Cells  

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

### Q: What materials are used in this filling nozzle assembly and why?
**A**: The assembly uses 316L stainless steel for corrosion resistance, fluoropolymers like PTFE/PFA for chemical inertness against electrolytes, and ceramic for wear resistance at the orifice, ensuring long service life in harsh battery manufacturing environments.

### Q: How does the solenoid valve in this assembly improve filling accuracy?
**A**: The integrated solenoid valve provides precise on/off control of electrolyte flow, enabling consistent dispensing volumes and preventing drips or overfilling, which is critical for battery performance and manufacturing efficiency.

### Q: Can this nozzle assembly handle different electrolyte types and viscosities?
**A**: Yes, the combination of 316L stainless steel, fluoropolymer seals, and ceramic components makes it compatible with various electrolyte chemistries and viscosities commonly used in lithium-ion, lead-acid, and other battery types.

## 6. Manufacturing Compliance
- ISO 9001:2015 - QUALITY MANAGEMENT SYSTEMS

---
### 🛠️ Engineering Resource Access
🔗 **[Full Specification: Filling Nozzle Assembly](https://cnfx.com/industry/electrical-equipment-manufacturing/product/filling-nozzle-assembly)**

### 🌐 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**: FILLING_NOZZLE_ASSEMBLY | **Authority**: CNFX-2026-ST-001 | **Fingerprint**: a13b43f2
