---
title: "Deaerator"
industry: "Machinery and Equipment Manufacturing"
verification_protocol:
  urn: "URN:CNFX:ME:DEAERATOR"
  data_integrity_hash: "20d53c3c172c43272cd8ea54e5b4429c"
  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:DEAERATOR"
  data_source_uri: "https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/product/deaerator.md"
  official_resource_url: "https://cnfx.com/industry/machinery-and-equipment-manufacturing/product/deaerator"
  is_verified_logic: true
attributes:
  spec:
    status: "config-dependent"
    typical_range: "0.5-20 bar absolute pressure, 105-130°C temperature"
    unit: "m³/h"
engineering_limits:
  max_safe_operating_point:
    value: 7
    unit: "ppb"
    consequence: "Henry's Law gas solubility dependence on temperature and pressure - insufficient steam stripping at low pressure/temperature allows oxygen redissolution"
fmea_matrix_quantitative:
  - node_1:
      trigger: "Steam supply pressure drop below 1.2 bar absolute"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Dual redundant steam supply with pressure-controlled bypass valves maintaining minimum 1.5 bar absolute"
  - node_2:
      trigger: "Venting system blockage exceeding 80% cross-sectional area reduction"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Dual vent lines with differential pressure monitoring and automatic blowdown at 0.25 bar differential"
bom_nodes:
  spray-nozzle-distribution-tray:
    type: "part"
    urn: "URN:CNFX:ME:SPRAY_NOZZLE_DISTRIBUTION_TRAY"
    interface_type: "physical-logic-coupled"
  deaeration-section-scrubbing-section:
    type: "part"
    urn: "URN:CNFX:ME:DEAERATION_SECTION_SCRUBBING_SECTION"
    interface_type: "physical-logic-coupled"
  storage-section-feedwater-tank:
    type: "part"
    urn: "URN:CNFX:ME:STORAGE_SECTION_FEEDWATER_TANK"
    interface_type: "physical-logic-coupled"
  vent-condenser:
    type: "part"
    urn: "URN:CNFX:ME:VENT_CONDENSER"
    interface_type: "physical-logic-coupled"
manufacturing_compliance:
  - standard: "ISO 9001:2015 - QUALITY MANAGEMENT SYSTEMS"
    scope: "Verified Engineering Specification"
  - standard: "PED 2014/68/EU - PRESSURE EQUIPMENT DIRECTIVE (CE MARKING)"
    scope: "Verified Engineering Specification"
url: "https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/product/deaerator.md"
on_chain_sovereignty:
  contract_standard: "ERC-721-Industrial"
  metadata_hash: "ce1b13169430a6b9f0bc0dc7fa63dbe6e337c786a1cf80a25d696fb88ce53efe"
  royalty_logic: "IPFS-CID-REQUIRED"
  mint_status: "logic-verified-ready"
version: "3.3.4-EXTREME-SOVEREIGN-WEB3"
---

# Industrial Specification: Deaerator

## 1. Technical Definition
A device that removes dissolved gases, primarily oxygen and carbon dioxide, from boiler feedwater to prevent corrosion and improve efficiency.

## 2. Engineering Reasoning & Causal Matrix
> **Operational Intelligence**: Designed for **0.5-20 bar absolute pressure, 105-130°C temperature**. Failure boundary: **Feedwater oxygen content exceeding 7 ppb, deaerator pressure dropping below 0.3 bar absolute**, Mechanism: **Henry's Law gas solubility dependence on temperature and pressure - insufficient steam stripping at low pressure/temperature allows oxygen redissolution**.

### 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 |
| :--- | :--- | :--- | :--- |
| Steam supply pressure drop below 1.2 bar absolute | 8 | Oxygen scavenging failure leading to feedwater oxygen concentration &gt;7 ppb | Dual redundant steam supply with pressure-controlled bypass valves maintaining minimum 1.5 bar absolute |
| Venting system blockage exceeding 80% cross-sectional area reduction | 8 | Non-condensable gas accumulation causing deaerator pressure instability &gt;±0.15 bar fluctuation | Dual vent lines with differential pressure monitoring and automatic blowdown at 0.25 bar differential |

## 3. Key Technical Parameters
| Parameter | Value | Unit | Status |
| :--- | :--- | :--- | :--- |
| spec | Config-dependent | m³/h | Verified |

## 4. System BOM & Knowledge Routing
### Core Components (Recursive Links)
- [Spray Nozzle / Distribution Tray](https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/product/spray-nozzle-distribution-tray.md) `(Standalone System)`
- [Deaeration Section / Scrubbing Section](https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/product/deaeration-section-scrubbing-section.md) `(Standalone System)`
- [Storage Section / Feedwater Tank](https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/product/storage-section-feedwater-tank.md) `(Standalone System)`
- [Vent Condenser](https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/product/vent-condenser.md) `(Standalone System)`

### Industrial DNA Context (De-duplicated)
**Complementary Dependencies**: **Boiler Feed Pump**, **Chemical Dosing System**, **Condensate Return System**  
**Downstream Applications**: Steam for Power Generation, Process Steam for Manufacturing, Heating Steam for District Systems  

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

### Q: What gases does a deaerator remove from boiler feedwater?
**A**: Deaerators primarily remove dissolved oxygen and carbon dioxide from boiler feedwater, which are the main causes of corrosion in steam systems and boiler components.

### Q: What materials are used in deaerator construction?
**A**: Deaerators typically feature carbon steel construction for the main vessel with stainless steel used for internal components and areas exposed to corrosive conditions, such as the scrubbing section and distribution trays.

### Q: How does a deaerator improve boiler system efficiency?
**A**: By removing dissolved gases, deaerators prevent corrosion damage to boiler tubes and components, reduce maintenance costs, improve heat transfer efficiency, and extend the overall lifespan of the boiler system.

## 6. Manufacturing Compliance
- ISO 9001:2015 - QUALITY MANAGEMENT SYSTEMS
- PED 2014/68/EU - PRESSURE EQUIPMENT DIRECTIVE (CE MARKING)

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

### 🌐 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**: DEAERATOR | **Authority**: CNFX-2026-ST-001 | **Fingerprint**: 70840d6f
