---
title: "Diverging Section (Outlet)"
industry: "Machinery and Equipment Manufacturing"
verification_protocol:
  urn: "URN:CNFX:ME:DIVERGING_SECTION_OUTLET"
  data_integrity_hash: "7486b33ef62954214d7e905b4904085d"
  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:DIVERGING_SECTION_OUTLET"
  data_source_uri: "https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/product/diverging-section-outlet.md"
  official_resource_url: "https://cnfx.com/industry/machinery-and-equipment-manufacturing/product/diverging-section-outlet"
  is_verified_logic: true
attributes:
  spec:
    status: "config-dependent"
    typical_range: "0.5-2.5 m/s gas velocity, 0.95-1.05 bar outlet pressure"
    unit: "degrees"
engineering_limits:
  max_safe_operating_point:
    value: 0.3
    unit: "m"
    consequence: "Boundary layer separation at divergence angles &gt;15° causing flow reversal and pressure drop below 0.9 bar"
fmea_matrix_quantitative:
  - node_1:
      trigger: "Sudden upstream gas flow reduction from 100% to 30% in &lt;2 seconds"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Install 45° angled drainage weirs with 25 mm diameter outlets at 500 mm intervals"
  - node_2:
      trigger: "Corrosive gas composition with HCl concentration &gt;200 ppm at 60°C"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Apply 3 mm thick PTFE lining with 0.5 mm glass fiber reinforcement"
bom_nodes:
  flange-connection:
    type: "component"
    urn: "URN:CNFX:ME:FLANGE_CONNECTION"
    interface_type: "physical-logic-coupled"
  reinforcement-rings:
    type: "component"
    urn: "URN:CNFX:ME:REINFORCEMENT_RINGS"
    interface_type: "physical-logic-coupled"
  drain-port:
    type: "component"
    urn: "URN:CNFX:ME:DRAIN_PORT"
    interface_type: "physical-logic-coupled"
manufacturing_compliance:
  - standard: "ISO 5167-1:2022 MEASUREMENT OF FLUID FLOW BY MEANS OF PRESSURE DIFFERENTIAL DEVICES"
    scope: "Verified Engineering Specification"
url: "https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/product/diverging-section-outlet.md"
on_chain_sovereignty:
  contract_standard: "ERC-721-Industrial"
  metadata_hash: "9d9cfd151653bd036dae7c6813a09c8324fddbaa81007b11266972e78eb57481"
  royalty_logic: "IPFS-CID-REQUIRED"
  mint_status: "logic-verified-ready"
version: "3.3.4-EXTREME-SOVEREIGN-WEB3"
---

# Industrial Specification: Diverging Section (Outlet)

## 1. Technical Definition
The diverging section at the outlet of a Venturi scrubber where gas velocity decreases and pressure recovers.

## 2. Engineering Reasoning & Causal Matrix
> **Operational Intelligence**: Designed for **0.5-2.5 m/s gas velocity, 0.95-1.05 bar outlet pressure**. Failure boundary: **Gas velocity drops below 0.3 m/s causing liquid droplet settling, or exceeds 3.0 m/s causing re-entrainment**, Mechanism: **Boundary layer separation at divergence angles &gt;15° causing flow reversal and pressure drop below 0.9 bar**.

### 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 |
| :--- | :--- | :--- | :--- |
| Sudden upstream gas flow reduction from 100% to 30% in &lt;2 seconds | 8 | Liquid accumulation exceeding 15 mm depth in diverging section | Install 45° angled drainage weirs with 25 mm diameter outlets at 500 mm intervals |
| Corrosive gas composition with HCl concentration &gt;200 ppm at 60°C | 8 | 316L stainless steel wall thinning from 6 mm to &lt;2 mm in 6 months | Apply 3 mm thick PTFE lining with 0.5 mm glass fiber reinforcement |

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

## 4. System BOM & Knowledge Routing
### Core Components (Recursive Links)

### Industrial DNA Context (De-duplicated)
**Complementary Dependencies**: **Centrifugal Fan**, **Wastewater Treatment System**, **Chemical Dosing System**  
**Downstream Applications**: Cleaned Industrial Gas, Processed Air Stream, Emission-Compliant Exhaust  

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

### Q: What is the primary function of a diverging section in a Venturi scrubber outlet?
**A**: The diverging section at the outlet of a Venturi scrubber gradually expands the gas flow path, reducing velocity and converting kinetic energy back to pressure (pressure recovery), which improves system efficiency and minimizes energy loss.

### Q: Which materials are recommended for a diverging section in corrosive environments?
**A**: For corrosive environments, stainless steel (grades 304 or 316), fiber-reinforced plastic (FRP), or polypropylene (PP) are recommended due to their resistance to chemical degradation and moisture, ensuring durability and low maintenance.

### Q: What components are typically included in the BOM for a diverging section?
**A**: A standard bill of materials includes flange connections for secure piping integration, reinforcement rings for structural integrity under pressure changes, and a drain port to remove accumulated liquids or particulates, ensuring reliable operation.

## 6. Manufacturing Compliance
- ISO 5167-1:2022 MEASUREMENT OF FLUID FLOW BY MEANS OF PRESSURE DIFFERENTIAL DEVICES

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### 🛠️ Engineering Resource Access
🔗 **[Full Specification: Diverging Section (Outlet)](https://cnfx.com/industry/machinery-and-equipment-manufacturing/product/diverging-section-outlet)**

### 🌐 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**: DIVERGING_SECTION_OUTLET | **Authority**: CNFX-2026-ST-001 | **Fingerprint**: 63d3329a
