---
title: "Pressure Control Valve"
industry: "Machinery and Equipment Manufacturing"
verification_protocol:
  urn: "URN:CNFX:ME:PRESSURE_CONTROL_VALVE"
  data_integrity_hash: "c47031f172d1ff276de80673dd8d1f53"
  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:PRESSURE_CONTROL_VALVE"
  data_source_uri: "https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/product/pressure-control-valve.md"
  official_resource_url: "https://cnfx.com/industry/machinery-and-equipment-manufacturing/product/pressure-control-valve"
  is_verified_logic: true
attributes:
  spec:
    status: "config-dependent"
    typical_range: "0.5-350 bar"
    unit: "MPa"
engineering_limits:
  max_safe_operating_point:
    value: 420
    unit: "bar"
    consequence: "Yield strength exceedance of ASTM A276 Type 316 stainless steel (205 MPa) causing permanent deformation of valve body and seat"
fmea_matrix_quantitative:
  - node_1:
      trigger: "Particulate contamination exceeding ISO 4406 18/16/13 cleanliness level"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Install 10 μm absolute beta₃≥200 filter with differential pressure monitoring at 0.7 bar threshold"
  - node_2:
      trigger: "Water contamination exceeding 500 ppm in hydraulic fluid"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Integrate vacuum dehydration system maintaining fluid at ≤100 ppm water content"
bom_nodes:
  valve-body:
    type: "part"
    urn: "URN:CNFX:ME:VALVE_BODY"
    interface_type: "physical-logic-coupled"
  spoolpoppet:
    type: "component"
    urn: "URN:CNFX:ME:SPOOLPOPPET"
    interface_type: "physical-logic-coupled"
  spring:
    type: "component"
    urn: "URN:CNFX:ME:SPRING"
    interface_type: "physical-logic-coupled"
  seals:
    type: "component"
    urn: "URN:CNFX:ME:SEALS"
    interface_type: "physical-logic-coupled"
manufacturing_compliance:
url: "https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/product/pressure-control-valve.md"
on_chain_sovereignty:
  contract_standard: "ERC-721-Industrial"
  metadata_hash: "390e96e459549529e72827da3cfef7ba413670117911acf8e7ecc7905843302c"
  royalty_logic: "IPFS-CID-REQUIRED"
  mint_status: "logic-verified-ready"
version: "3.3.4-EXTREME-SOVEREIGN-WEB3"
---

# Industrial Specification: Pressure Control Valve

## 1. Technical Definition
A hydraulic valve that regulates, maintains, or limits fluid pressure within a hydraulic system.

## 2. Engineering Reasoning & Causal Matrix
> **Operational Intelligence**: Designed for **0.5-350 bar**. Failure boundary: **420 bar (burst pressure) at 20°C hydraulic fluid temperature**, Mechanism: **Yield strength exceedance of ASTM A276 Type 316 stainless steel (205 MPa) causing permanent deformation of valve body and seat**.

### 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 |
| :--- | :--- | :--- | :--- |
| Particulate contamination exceeding ISO 4406 18/16/13 cleanliness level | 8 | Spool valve sticking due to abrasive wear on 15-20 μm clearance surfaces | Install 10 μm absolute beta₃≥200 filter with differential pressure monitoring at 0.7 bar threshold |
| Water contamination exceeding 500 ppm in hydraulic fluid | 8 | Cavitation erosion at 0.3 bar vapor pressure threshold causing pitting on brass seat surfaces | Integrate vacuum dehydration system maintaining fluid at ≤100 ppm water content |

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

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

### Industrial DNA Context (De-duplicated)
**Complementary Dependencies**: **Hydraulic Power Unit**, **Pressure Transducer**, **Hydraulic Fluid Filtration System**  
**Downstream Applications**: Construction Equipment, Industrial Presses, Aircraft Landing Gear Systems  

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

### Q: What materials are available for pressure control valves in machinery manufacturing?
**A**: Our pressure control valves are available in carbon steel, stainless steel, and brass to suit different hydraulic fluid compatibility and environmental conditions.

### Q: How does a pressure control valve maintain system pressure in hydraulic equipment?
**A**: The valve uses a spool/poppet mechanism with a spring to regulate fluid flow, maintaining consistent pressure by opening or closing based on system demands.

### Q: What are the key components in a pressure control valve's bill of materials?
**A**: Essential components include seals for leak prevention, spool/poppet for flow control, spring for pressure adjustment, and the valve body housing all internal parts.

## 6. Manufacturing Compliance

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

### 🌐 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**: PRESSURE_CONTROL_VALVE | **Authority**: CNFX-2026-ST-001 | **Fingerprint**: 99e1120c
