---
title: "Venturi Nozzle"
industry: "Machinery and Equipment Manufacturing"
verification_protocol:
  urn: "URN:CNFX:ME:VENTURI_NOZZLE"
  data_integrity_hash: "1731c64b390e22a9e0e0c7e5c684a0e7"
  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:VENTURI_NOZZLE"
  data_source_uri: "https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/product/venturi-nozzle.md"
  official_resource_url: "https://cnfx.com/industry/machinery-and-equipment-manufacturing/product/venturi-nozzle"
  is_verified_logic: true
attributes:
  spec:
    status: "config-dependent"
    typical_range: "0.5-15 bar inlet pressure, 0.1-0.8 bar vacuum pressure"
    unit: "mm"
engineering_limits:
  max_safe_operating_point:
    value: 20
    unit: "bar"
    consequence: "Cavitation at throat section when local pressure drops below fluid vapor pressure (typically 0.023 bar for water at 20°C), causing vapor bubble collapse and material erosion"
fmea_matrix_quantitative:
  - node_1:
      trigger: "Particulate contamination &gt; 50 μm in fluid stream"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Install 10 μm absolute filtration upstream with differential pressure monitoring"
  - node_2:
      trigger: "Fluid temperature variation &gt; ±15°C from design point"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Integrate temperature-compensated flow control with PID regulation"
bom_nodes:
  converging-section:
    type: "component"
    urn: "URN:CNFX:ME:CONVERGING_SECTION"
    interface_type: "physical-logic-coupled"
  throat:
    type: "component"
    urn: "URN:CNFX:ME:THROAT"
    interface_type: "physical-logic-coupled"
  diverging-section:
    type: "part"
    urn: "URN:CNFX:ME:DIVERGING_SECTION"
    interface_type: "physical-logic-coupled"
  vacuum-port:
    type: "component"
    urn: "URN:CNFX:ME:VACUUM_PORT"
    interface_type: "physical-logic-coupled"
manufacturing_compliance:
  - standard: "DIN 1952: FLOW MEASUREMENT WITH ORIFICE PLATES, NOZZLES AND VENTURI TUBES"
    scope: "Verified Engineering Specification"
url: "https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/product/venturi-nozzle.md"
on_chain_sovereignty:
  contract_standard: "ERC-721-Industrial"
  metadata_hash: "d07ac1a9a3ee51f1202988c7f82b9fc233d07165f7f8113f56141b69e5f449f8"
  royalty_logic: "IPFS-CID-REQUIRED"
  mint_status: "logic-verified-ready"
version: "3.3.4-EXTREME-SOVEREIGN-WEB3"
---

# Industrial Specification: Venturi Nozzle

## 1. Technical Definition
A specialized nozzle that uses the Venturi effect to create vacuum pressure by accelerating fluid flow through a constricted section.

## 2. Engineering Reasoning & Causal Matrix
> **Operational Intelligence**: Designed for **0.5-15 bar inlet pressure, 0.1-0.8 bar vacuum pressure**. Failure boundary: **Inlet pressure &gt; 20 bar OR vacuum pressure &lt; 0.05 bar OR flow velocity &gt; 150 m/s**, Mechanism: **Cavitation at throat section when local pressure drops below fluid vapor pressure (typically 0.023 bar for water at 20°C), causing vapor bubble collapse and material erosion**.

### 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 |
| :--- | :--- | :--- | :--- |
| Particulate contamination &gt; 50 μm in fluid stream | 8 | Throat erosion rate exceeds 0.1 mm/year, causing geometry distortion | Install 10 μm absolute filtration upstream with differential pressure monitoring |
| Fluid temperature variation &gt; ±15°C from design point | 8 | Viscosity change alters flow coefficient by &gt;5%, reducing vacuum efficiency | Integrate temperature-compensated flow control with PID regulation |

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

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

### Industrial DNA Context (De-duplicated)
**Complementary Dependencies**: **Compressed Air System**, **Vacuum Pump**, **Fluid Filtration System**  
**Downstream Applications**: Vacuum Forming Machines, Pneumatic Conveying Systems, Industrial Vacuum Cleaners  

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

### Q: How does a Venturi nozzle create vacuum pressure in machinery applications?
**A**: A Venturi nozzle accelerates fluid through a constricted throat section, creating a pressure drop that generates vacuum at the vacuum port, ideal for industrial suction or pneumatic systems.

### Q: What materials are best for Venturi nozzles in harsh industrial environments?
**A**: Stainless steel offers corrosion resistance for wet or chemical applications, while engineering plastics provide lightweight, cost-effective options for less abrasive conditions.

### Q: What are the key components in a Venturi nozzle BOM for manufacturing?
**A**: The bill of materials includes the converging section (inlet), throat (constriction), diverging section (outlet), and vacuum port, all precision-machined for optimal flow and vacuum performance.

## 6. Manufacturing Compliance
- DIN 1952: FLOW MEASUREMENT WITH ORIFICE PLATES, NOZZLES AND VENTURI TUBES

---
### 🛠️ Engineering Resource Access
🔗 **[Full Specification: Venturi Nozzle](https://cnfx.com/industry/machinery-and-equipment-manufacturing/product/venturi-nozzle)**

### 🌐 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**: VENTURI_NOZZLE | **Authority**: CNFX-2026-ST-001 | **Fingerprint**: b03ce1e7
