---
title: "Valve Body"
industry: "Machinery and Equipment Manufacturing"
verification_protocol:
  urn: "URN:CNFX:ME:VALVE_BODY"
  data_integrity_hash: "ea1579cc3df6a22e9a7e103d1822fa19"
  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:VALVE_BODY"
  data_source_uri: "https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/product/valve-body.md"
  official_resource_url: "https://cnfx.com/industry/machinery-and-equipment-manufacturing/product/valve-body"
  is_verified_logic: true
attributes:
  spec:
    status: "config-dependent"
    typical_range: "0.1-100 bar"
    unit: "mm"
engineering_limits:
  max_safe_operating_point:
    value: 150
    unit: "bar"
    consequence: "Yield strength of ASTM A216 WCB carbon steel (250 MPa) exceeded at 150 bar internal pressure, causing permanent plastic deformation and loss of sealing integrity"
fmea_matrix_quantitative:
  - node_1:
      trigger: "Corrosive fluid with pH &lt;4.0 flowing at 2.5 m/s"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Apply 316L stainless steel cladding (3mm thickness) to internal surfaces"
  - node_2:
      trigger: "Thermal cycling between 20°C and 180°C at 15 cycles/hour"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Implement finite element analysis to redesign fillet radii from 5mm to 15mm at all stress concentration locations"
bom_nodes:
  inlet-flange:
    type: "component"
    urn: "URN:CNFX:ME:INLET_FLANGE"
    interface_type: "physical-logic-coupled"
  outlet-flange:
    type: "component"
    urn: "URN:CNFX:ME:OUTLET_FLANGE"
    interface_type: "physical-logic-coupled"
  body-cavity:
    type: "component"
    urn: "URN:CNFX:ME:BODY_CAVITY"
    interface_type: "physical-logic-coupled"
manufacturing_compliance:
  - standard: "ISO 17292:2015 (METAL BALL VALVES FOR PETROLEUM, PETROCHEMICAL AND ALLIED INDUSTRIES)"
    scope: "Verified Engineering Specification"
  - standard: "ANSI/ASME B16.34:2020 (VALVES - FLANGED, THREADED, AND WELDING END)"
    scope: "Verified Engineering Specification"
  - standard: "DIN EN 12516-1:2014 (INDUSTRIAL VALVES - SHELL DESIGN STRENGTH - PART 1: TABULATION METHOD FOR STEEL VALVE SHELLS)"
    scope: "Verified Engineering Specification"
url: "https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/product/valve-body.md"
on_chain_sovereignty:
  contract_standard: "ERC-721-Industrial"
  metadata_hash: "5505c481c7e21f58af593cc6b450050ed55d0c40aa7d7e1432e30c5c995e84f8"
  royalty_logic: "IPFS-CID-REQUIRED"
  mint_status: "logic-verified-ready"
version: "3.3.4-EXTREME-SOVEREIGN-WEB3"
---

# Industrial Specification: Valve Body

## 1. Technical Definition
The main structural housing of a pressure relief valve that contains and directs fluid flow.

## 2. Engineering Reasoning & Causal Matrix
> **Operational Intelligence**: Designed for **0.1-100 bar**. Failure boundary: **150 bar internal pressure**, Mechanism: **Yield strength of ASTM A216 WCB carbon steel (250 MPa) exceeded at 150 bar internal pressure, causing permanent plastic deformation and loss of sealing integrity**.

### 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 |
| :--- | :--- | :--- | :--- |
| Corrosive fluid with pH &lt;4.0 flowing at 2.5 m/s | 8 | Wall thickness reduction from 12mm to &lt;8mm within 6 months | Apply 316L stainless steel cladding (3mm thickness) to internal surfaces |
| Thermal cycling between 20°C and 180°C at 15 cycles/hour | 8 | Thermal fatigue cracks initiating at stress concentration points near flange connections | Implement finite element analysis to redesign fillet radii from 5mm to 15mm at all stress concentration locations |

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

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

### Industrial DNA Context (De-duplicated)
**Complementary Dependencies**: **CNC Machining Center**, **Coordinate Measuring Machine**, **Industrial Cleaning System**  
**Downstream Applications**: Pressure Relief Valves, Hydraulic Control Systems, Industrial Process Equipment  

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

### Q: What materials are available for valve bodies in machinery manufacturing?
**A**: Our valve bodies are manufactured in carbon steel, stainless steel, and alloy steel to meet various industrial requirements for strength, corrosion resistance, and temperature tolerance.

### Q: What components are included in a standard valve body BOM?
**A**: A standard valve body bill of materials includes the main body cavity, inlet flange, and outlet flange, which work together to contain and direct fluid flow in pressure relief applications.

### Q: How does the valve body function in pressure relief systems?
**A**: The valve body serves as the structural housing that contains internal components and directs fluid flow, providing the critical framework that allows pressure relief valves to operate safely and efficiently in industrial systems.

## 6. Manufacturing Compliance
- ISO 17292:2015 (METAL BALL VALVES FOR PETROLEUM, PETROCHEMICAL AND ALLIED INDUSTRIES)
- ANSI/ASME B16.34:2020 (VALVES - FLANGED, THREADED, AND WELDING END)
- DIN EN 12516-1:2014 (INDUSTRIAL VALVES - SHELL DESIGN STRENGTH - PART 1: TABULATION METHOD FOR STEEL VALVE SHELLS)

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

### 🌐 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**: VALVE_BODY | **Authority**: CNFX-2026-ST-001 | **Fingerprint**: 8eafeaa6
