---
title: "Pressure Regulator/Control Valve"
industry: "Machinery and Equipment Manufacturing"
verification_protocol:
  urn: "URN:CNFX:ME:PRESSURE_REGULATORCONTROL_VALVE"
  data_integrity_hash: "5997b2bc59cbec9aa7b5875d4fcfa138"
  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_REGULATORCONTROL_VALVE"
  data_source_uri: "https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/product/pressure-regulatorcontrol-valve.md"
  official_resource_url: "https://cnfx.com/industry/machinery-and-equipment-manufacturing/product/pressure-regulatorcontrol-valve"
  is_verified_logic: true
attributes:
  spec:
    status: "config-dependent"
    typical_range: "0.5-25 bar"
    unit: "mm"
engineering_limits:
  max_safe_operating_point:
    value: 35
    unit: "bar"
    consequence: "Diaphragm material fatigue at 10^7 cycles under 25 bar cyclic loading, or cavitation at vapor pressure of 0.023 bar at 20°C water temperature"
fmea_matrix_quantitative:
  - node_1:
      trigger: "Particulate contamination exceeding 25 μm in water flow"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Install 10 μm absolute filter upstream with differential pressure monitoring"
  - node_2:
      trigger: "Spring relaxation exceeding 5% of set force after 5000 operating hours"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Use ASTM A228 music wire springs with stress-relieving heat treatment at 260°C for 30 minutes"
bom_nodes:
  valve-body:
    type: "part"
    urn: "URN:CNFX:ME:VALVE_BODY"
    interface_type: "physical-logic-coupled"
  diaphragmpiston:
    type: "component"
    urn: "URN:CNFX:ME:DIAPHRAGMPISTON"
    interface_type: "physical-logic-coupled"
  spring:
    type: "component"
    urn: "URN:CNFX:ME:SPRING"
    interface_type: "physical-logic-coupled"
  valve-seat:
    type: "component"
    urn: "URN:CNFX:ME:VALVE_SEAT"
    interface_type: "physical-logic-coupled"
  adjustment-screw:
    type: "component"
    urn: "URN:CNFX:ME:ADJUSTMENT_SCREW"
    interface_type: "physical-logic-coupled"
manufacturing_compliance:
  - standard: "ISO 5208:2015 (INDUSTRIAL VALVES - PRESSURE TESTING OF VALVES)"
    scope: "Verified Engineering Specification"
url: "https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/product/pressure-regulatorcontrol-valve.md"
on_chain_sovereignty:
  contract_standard: "ERC-721-Industrial"
  metadata_hash: "a29dd7846ac0ea53f2e8d8b9c55d1fb796d37f04d8a86b37380cae6cdfe520a2"
  royalty_logic: "IPFS-CID-REQUIRED"
  mint_status: "logic-verified-ready"
version: "3.3.4-EXTREME-SOVEREIGN-WEB3"
---

# Industrial Specification: Pressure Regulator/Control Valve

## 1. Technical Definition
A valve that automatically maintains a constant downstream pressure in a water pump system by adjusting flow.

## 2. Engineering Reasoning & Causal Matrix
> **Operational Intelligence**: Designed for **0.5-25 bar**. Failure boundary: **35 bar (diaphragm rupture pressure) or 0.1 bar (minimum differential pressure for stable control)**, Mechanism: **Diaphragm material fatigue at 10^7 cycles under 25 bar cyclic loading, or cavitation at vapor pressure of 0.023 bar at 20°C water temperature**.

### 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 25 μm in water flow | 8 | Seat erosion causing 15% flow coefficient deviation | Install 10 μm absolute filter upstream with differential pressure monitoring |
| Spring relaxation exceeding 5% of set force after 5000 operating hours | 8 | Downstream pressure drift of ±0.5 bar from setpoint | Use ASTM A228 music wire springs with stress-relieving heat treatment at 260°C for 30 minutes |

## 3. Key Technical Parameters
| Parameter | Value | Unit | Status |
| :--- | :--- | :--- | :--- |
| spec | Config-dependent | mm | 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**: **Pressure Gauge**, **Water Pump**, **Flow Meter**  
**Downstream Applications**: Irrigation Systems, Water Treatment Plants, Industrial Cooling Systems  

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

### Q: What materials are available for this pressure regulator valve?
**A**: This pressure regulator/control valve is available in brass, stainless steel, and cast iron materials to suit different industrial applications and environmental conditions.

### Q: How does this valve maintain constant pressure in water pump systems?
**A**: The valve automatically adjusts flow using a diaphragm/piston mechanism with spring tension, responding to downstream pressure changes to maintain consistent pressure without manual intervention.

### Q: What are the main components of this pressure control valve?
**A**: Key components include the valve body, valve seat, diaphragm/piston, spring, and adjustment screw, which work together to regulate pressure in machinery and equipment applications.

## 6. Manufacturing Compliance
- ISO 5208:2015 (INDUSTRIAL VALVES - PRESSURE TESTING OF VALVES)

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

### 🌐 Knowledge Graph Topology
> **Node Status**: Verified Engineering Spec
> **Connectivity**: Linked to **5** standalone system nodes
> **Global Context**: Part of a 5,814 node industrial cluster within the CNFX Graph

> **Reference ID**: PRESSURE_REGULATORCONTROL_VALVE | **Authority**: CNFX-2026-ST-001 | **Fingerprint**: c220de3e
