---
title: "Pressure Reducing Valve"
industry: "Machinery and Equipment Manufacturing"
verification_protocol:
  urn: "URN:CNFX:ME:PRESSURE_REDUCING_VALVE"
  data_integrity_hash: "003fe3cc0684a009dc5c2a32013641d8"
  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_REDUCING_VALVE"
  data_source_uri: "https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/product/pressure-reducing-valve.md"
  official_resource_url: "https://cnfx.com/industry/machinery-and-equipment-manufacturing/product/pressure-reducing-valve"
  is_verified_logic: true
attributes:
  spec:
    status: "config-dependent"
    typical_range: "1.5-25 bar inlet pressure, 0.5-10 bar outlet pressure"
    unit: "mm"
engineering_limits:
  max_safe_operating_point:
    value: 5
    unit: "seconds"
    consequence: "Diaphragm fatigue failure due to cyclic stress exceeding 35 MPa yield strength of nitrile rubber at 10^6 cycles"
fmea_matrix_quantitative:
  - node_1:
      trigger: "Particulate contamination &gt;50 μm in fluid stream"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Install 10 μm absolute filter upstream with differential pressure monitoring"
  - node_2:
      trigger: "Water hammer pressure surge exceeding 1.5x maximum rated pressure"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Integrate accumulator with 0.5 L capacity and 10 bar pre-charge pressure"
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"
  adjusting-screw:
    type: "component"
    urn: "URN:CNFX:ME:ADJUSTING_SCREW"
    interface_type: "physical-logic-coupled"
  valve-disc:
    type: "component"
    urn: "URN:CNFX:ME:VALVE_DISC"
    interface_type: "physical-logic-coupled"
manufacturing_compliance:
url: "https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/product/pressure-reducing-valve.md"
on_chain_sovereignty:
  contract_standard: "ERC-721-Industrial"
  metadata_hash: "1454b260e0e8df699c1f9516e7bae28c54f5fddc26cdf6b5d8b0f819d7c6245d"
  royalty_logic: "IPFS-CID-REQUIRED"
  mint_status: "logic-verified-ready"
version: "3.3.4-EXTREME-SOVEREIGN-WEB3"
---

# Industrial Specification: Pressure Reducing Valve

## 1. Technical Definition
A valve that automatically reduces a higher inlet pressure to a steady lower outlet pressure regardless of flow variations.

## 2. Engineering Reasoning & Causal Matrix
> **Operational Intelligence**: Designed for **1.5-25 bar inlet pressure, 0.5-10 bar outlet pressure**. Failure boundary: **Outlet pressure exceeds 110% of setpoint or drops below 85% of setpoint for &gt;5 seconds**, Mechanism: **Diaphragm fatigue failure due to cyclic stress exceeding 35 MPa yield strength of nitrile rubber at 10^6 cycles**.

### 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 &gt;50 μm in fluid stream | 8 | Seat erosion causing pressure creep at 0.2 bar/min increase | Install 10 μm absolute filter upstream with differential pressure monitoring |
| Water hammer pressure surge exceeding 1.5x maximum rated pressure | 8 | Spring permanent set deformation reducing control accuracy by ±15% | Integrate accumulator with 0.5 L capacity and 10 bar pre-charge pressure |

## 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**, **Compressed Air Filter**, **Pressure Regulator Test Bench**  
**Downstream Applications**: Hydraulic Power Units, Pneumatic Control Systems, Industrial Boiler Systems  

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

### Q: What materials are available for this pressure reducing valve?
**A**: Our pressure reducing valves are constructed from durable materials including Stainless Steel for corrosion resistance, Cast Iron for heavy-duty applications, and Bronze for compatibility with various fluids in machinery systems.

### Q: How does this valve maintain consistent outlet pressure?
**A**: The valve uses a diaphragm/piston and spring mechanism that automatically adjusts to flow variations, ensuring a steady lower outlet pressure regardless of inlet pressure fluctuations or changing demand in your equipment.

### Q: What are the main components of this pressure reducing valve?
**A**: Key components include the Valve Body (primary housing), Valve Disc (flow control element), Diaphragm/Piston (pressure sensing mechanism), Spring (force adjustment), and Adjusting Screw for precise pressure setting calibration.

## 6. Manufacturing Compliance

---
### 🛠️ Engineering Resource Access
🔗 **[Full Specification: Pressure Reducing Valve](https://cnfx.com/industry/machinery-and-equipment-manufacturing/product/pressure-reducing-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_REDUCING_VALVE | **Authority**: CNFX-2026-ST-001 | **Fingerprint**: bb8d2f47
