---
title: "Spray Gun/Nozzle Assembly"
industry: "Machinery and Equipment Manufacturing"
verification_protocol:
  urn: "URN:CNFX:ME:SPRAY_GUNNOZZLE_ASSEMBLY"
  data_integrity_hash: "2011a5e5be6705dfef5fe2caea0efdaa"
  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:SPRAY_GUNNOZZLE_ASSEMBLY"
  data_source_uri: "https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/product/spray-gunnozzle-assembly.md"
  official_resource_url: "https://cnfx.com/industry/machinery-and-equipment-manufacturing/product/spray-gunnozzle-assembly"
  is_verified_logic: true
attributes:
  spec:
    status: "config-dependent"
    typical_range: "2.0-8.0 bar (29-116 psi) at 0.3-1.2 L/min flow rate"
    unit: "mm"
engineering_limits:
  max_safe_operating_point:
    value: 0.5
    unit: "mm"
    consequence: "Cavitation-induced erosion when ΔP across nozzle exceeds 9.8 bar, causing vapor bubble collapse at 1500 m/s impact velocity on 440C stainless steel surfaces"
fmea_matrix_quantitative:
  - node_1:
      trigger: "Abrasive particle accumulation exceeding 25μm diameter in fluid stream"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Install 10μm absolute filtration with differential pressure monitoring at 0.7 bar trigger"
  - node_2:
      trigger: "Thermal cycling between 20°C and 150°C exceeding 3 cycles/hour"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Implement fluid temperature regulation maintaining 35±5°C with PID control at nozzle inlet"
bom_nodes:
  fluid-nozzle:
    type: "component"
    urn: "URN:CNFX:ME:FLUID_NOZZLE"
    interface_type: "physical-logic-coupled"
  air-cap:
    type: "component"
    urn: "URN:CNFX:ME:AIR_CAP"
    interface_type: "physical-logic-coupled"
  needle-valve:
    type: "part"
    urn: "URN:CNFX:ME:NEEDLE_VALVE"
    interface_type: "physical-logic-coupled"
  trigger-mechanism:
    type: "part"
    urn: "URN:CNFX:ME:TRIGGER_MECHANISM"
    interface_type: "physical-logic-coupled"
manufacturing_compliance:
  - standard: "ISO 9001:2015 - QUALITY MANAGEMENT SYSTEMS"
    scope: "Verified Engineering Specification"
  - standard: "DIN EN 1953 - ATOMIZING AND SPRAYING EQUIPMENT FOR COATING MATERIALS"
    scope: "Verified Engineering Specification"
url: "https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/product/spray-gunnozzle-assembly.md"
on_chain_sovereignty:
  contract_standard: "ERC-721-Industrial"
  metadata_hash: "0240706c18e0105cf3cad4bb6be3b7a60470ceae06e56e35e3e9180e9c54387d"
  royalty_logic: "IPFS-CID-REQUIRED"
  mint_status: "logic-verified-ready"
version: "3.3.4-EXTREME-SOVEREIGN-WEB3"
---

# Industrial Specification: Spray Gun/Nozzle Assembly

## 1. Technical Definition
A precision assembly that atomizes and directs coating materials onto surfaces as part of a spraying system.

## 2. Engineering Reasoning & Causal Matrix
> **Operational Intelligence**: Designed for **2.0-8.0 bar (29-116 psi) at 0.3-1.2 L/min flow rate**. Failure boundary: **Orifice erosion exceeding 15% diameter increase from initial 0.5mm specification**, Mechanism: **Cavitation-induced erosion when ΔP across nozzle exceeds 9.8 bar, causing vapor bubble collapse at 1500 m/s impact velocity on 440C stainless steel surfaces**.

### 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 |
| :--- | :--- | :--- | :--- |
| Abrasive particle accumulation exceeding 25μm diameter in fluid stream | 8 | Orifice diameter deviation beyond ±0.02mm tolerance causing 40% spray pattern distortion | Install 10μm absolute filtration with differential pressure monitoring at 0.7 bar trigger |
| Thermal cycling between 20°C and 150°C exceeding 3 cycles/hour | 8 | Seal compression set at PTFE components reaching 12% permanent deformation | Implement fluid temperature regulation maintaining 35±5°C with PID control at nozzle inlet |

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

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

### Industrial DNA Context (De-duplicated)
**Complementary Dependencies**: **Air Compressor**, **Paint Mixing Station**, **Spray Booth**  
**Downstream Applications**: Automotive Body Panels, Furniture Components, Industrial Equipment Housings  

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

### Q: What materials are used in this spray gun/nozzle assembly?
**A**: This assembly is constructed from durable materials including stainless steel, brass, and hardened steel components, with PTFE seals for chemical resistance and longevity in industrial environments.

### Q: What are the main components in the spray gun assembly BOM?
**A**: The bill of materials includes an air cap for atomization control, fluid nozzle for material direction, needle valve for precise flow regulation, and trigger mechanism for operational control.

### Q: What industries typically use this type of spray assembly?
**A**: This precision spray gun/nozzle assembly is designed for machinery and equipment manufacturing applications, particularly for coating, painting, and surface treatment processes in industrial settings.

## 6. Manufacturing Compliance
- ISO 9001:2015 - QUALITY MANAGEMENT SYSTEMS
- DIN EN 1953 - ATOMIZING AND SPRAYING EQUIPMENT FOR COATING MATERIALS

---
### 🛠️ Engineering Resource Access
🔗 **[Full Specification: Spray Gun/Nozzle Assembly](https://cnfx.com/industry/machinery-and-equipment-manufacturing/product/spray-gunnozzle-assembly)**

### 🌐 Knowledge Graph Topology
> **Node Status**: Verified Engineering Spec
> **Connectivity**: Linked to **4** standalone system nodes
> **Global Context**: Part of a 5,814 node industrial cluster within the CNFX Graph

> **Reference ID**: SPRAY_GUNNOZZLE_ASSEMBLY | **Authority**: CNFX-2026-ST-001 | **Fingerprint**: 08f7e204
