---
title: "Central Manifold (Header Pipe)"
industry: "Machinery and Equipment Manufacturing"
verification_protocol:
  urn: "URN:CNFX:ME:CENTRAL_MANIFOLD_HEADER_PIPE"
  data_integrity_hash: "60bdf0a26883091a9a6d0771f550b238"
  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:CENTRAL_MANIFOLD_HEADER_PIPE"
  data_source_uri: "https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/product/central-manifold-header-pipe.md"
  official_resource_url: "https://cnfx.com/industry/machinery-and-equipment-manufacturing/product/central-manifold-header-pipe"
  is_verified_logic: true
attributes:
  spec:
    status: "config-dependent"
    typical_range: "0-25 bar (0-2.5 MPa)"
    unit: "mm"
engineering_limits:
  max_safe_operating_point:
    value: 35
    unit: "bar"
    consequence: "Yield strength exceedance at 248 MPa (36,000 psi) causing plastic deformation and ductile rupture"
fmea_matrix_quantitative:
  - node_1:
      trigger: "Water hammer pressure surge exceeding 1.5x design pressure"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Installation of surge arrestors with 100 ms response time and pressure relief valves set at 110% operational maximum"
  - node_2:
      trigger: "Corrosion rate exceeding 0.5 mm/year due to pH&lt;6.5 fluid chemistry"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Material upgrade to 316L stainless steel (PREN&gt;24) with cathodic protection at -850 mV vs. Ag/AgCl reference"
bom_nodes:
  manifold-body:
    type: "part"
    urn: "URN:CNFX:ME:MANIFOLD_BODY"
    interface_type: "physical-logic-coupled"
  branch-ports:
    type: "component"
    urn: "URN:CNFX:ME:BRANCH_PORTS"
    interface_type: "physical-logic-coupled"
  end-capsflanges:
    type: "component"
    urn: "URN:CNFX:ME:END_CAPSFLANGES"
    interface_type: "physical-logic-coupled"
manufacturing_compliance:
  - standard: "ISO 9001:2015 - QUALITY MANAGEMENT SYSTEMS"
    scope: "Verified Engineering Specification"
url: "https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/product/central-manifold-header-pipe.md"
on_chain_sovereignty:
  contract_standard: "ERC-721-Industrial"
  metadata_hash: "26a9a9d60a43b08feb825b42b58cfe6767ee304dbde0eaee451d99ec5d719ab3"
  royalty_logic: "IPFS-CID-REQUIRED"
  mint_status: "logic-verified-ready"
version: "3.3.4-EXTREME-SOVEREIGN-WEB3"
---

# Industrial Specification: Central Manifold (Header Pipe)

## 1. Technical Definition
A primary distribution or collection pipe that serves as the main conduit within a lower distributor/collector assembly.

## 2. Engineering Reasoning & Causal Matrix
> **Operational Intelligence**: Designed for **0-25 bar (0-2.5 MPa)**. Failure boundary: **35 bar (3.5 MPa) burst pressure for carbon steel ASTM A106 Grade B**, Mechanism: **Yield strength exceedance at 248 MPa (36,000 psi) causing plastic deformation and ductile rupture**.

### 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 |
| :--- | :--- | :--- | :--- |
| Water hammer pressure surge exceeding 1.5x design pressure | 8 | Sudden circumferential fracture at weld joints | Installation of surge arrestors with 100 ms response time and pressure relief valves set at 110% operational maximum |
| Corrosion rate exceeding 0.5 mm/year due to pH&lt;6.5 fluid chemistry | 8 | Wall thinning to &lt;2.5 mm remaining thickness leading to localized rupture | Material upgrade to 316L stainless steel (PREN&gt;24) with cathodic protection at -850 mV vs. Ag/AgCl reference |

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

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

### Industrial DNA Context (De-duplicated)
**Complementary Dependencies**: **Pipe Bending Machine**, **Welding Positioner**, **Non-Destructive Testing Equipment**  
**Downstream Applications**: Hydraulic Power Units, Industrial Compressor Systems, Process Piping Assemblies  

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

### Q: What is the primary function of a central manifold header pipe in machinery?
**A**: A central manifold header pipe serves as the main distribution or collection conduit within lower distributor/collector assemblies, efficiently routing fluids or gases to multiple branch points in industrial machinery systems.

### Q: What are the key differences between carbon steel and stainless steel manifolds?
**A**: Carbon steel manifolds offer cost-effective strength for general industrial applications, while stainless steel provides superior corrosion resistance for harsh environments, chemical processing, or sanitary requirements, though at a higher cost.

### Q: How do branch ports and end caps/flanges contribute to manifold performance?
**A**: Branch ports enable precise connection to secondary lines for controlled distribution, while end caps or flanges provide secure sealing and mounting points, ensuring leak-free operation and structural integrity in demanding machinery applications.

## 6. Manufacturing Compliance
- ISO 9001:2015 - QUALITY MANAGEMENT SYSTEMS

---
### 🛠️ Engineering Resource Access
🔗 **[Full Specification: Central Manifold (Header Pipe)](https://cnfx.com/industry/machinery-and-equipment-manufacturing/product/central-manifold-header-pipe)**

### 🌐 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**: CENTRAL_MANIFOLD_HEADER_PIPE | **Authority**: CNFX-2026-ST-001 | **Fingerprint**: 834c3192
