---
title: "Flow Control Valve/Meter"
industry: "Machinery and Equipment Manufacturing"
verification_protocol:
  urn: "URN:CNFX:ME:FLOW_CONTROL_VALVEMETER"
  data_integrity_hash: "7339d8d86eda8b4a7e6f57f4a42dc3e4"
  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:FLOW_CONTROL_VALVEMETER"
  data_source_uri: "https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/product/flow-control-valvemeter.md"
  official_resource_url: "https://cnfx.com/industry/machinery-and-equipment-manufacturing/product/flow-control-valvemeter"
  is_verified_logic: true
attributes:
  spec:
    status: "config-dependent"
    typical_range: "0.5-15.0 bar at 20°C with 0.1% accuracy"
    unit: "mm"
engineering_limits:
  max_safe_operating_point:
    value: 18.5
    unit: "bar"
    consequence: "Diaphragm material yield strength (316L stainless steel) exceeded at 250 MPa stress due to Bernoulli's principle pressure differential"
fmea_matrix_quantitative:
  - node_1:
      trigger: "Particulate contamination exceeding 10 μm in purge air stream"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Install 5 μm absolute filter with differential pressure monitoring at 0.3 bar warning threshold"
  - node_2:
      trigger: "Ambient temperature cycling between -40°C and 120°C"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Implement bellows-sealed stem design with Inconel 718 spring compensating for 0.15 mm thermal displacement"
bom_nodes:
  valve-body:
    type: "part"
    urn: "URN:CNFX:ME:VALVE_BODY"
    interface_type: "physical-logic-coupled"
  flow-meter-sensor:
    type: "part"
    urn: "URN:CNFX:ME:FLOW_METER_SENSOR"
    interface_type: "physical-logic-coupled"
  control-mechanism:
    type: "part"
    urn: "URN:CNFX:ME:CONTROL_MECHANISM"
    interface_type: "physical-logic-coupled"
  seals-and-gaskets:
    type: "component"
    urn: "URN:CNFX:ME:SEALS_AND_GASKETS"
    interface_type: "physical-logic-coupled"
  displayoutput-module:
    type: "part"
    urn: "URN:CNFX:ME:DISPLAYOUTPUT_MODULE"
    interface_type: "physical-logic-coupled"
manufacturing_compliance:
  - standard: "ISO 5208:2015 (INDUSTRIAL VALVES - PRESSURE TESTING OF VALVES)"
    scope: "Verified Engineering Specification"
  - standard: "ANSI/FCI 70-2-2013 (CONTROL VALVE SEAT LEAKAGE)"
    scope: "Verified Engineering Specification"
  - standard: "DIN EN 1349:2009 (INDUSTRIAL VALVES - METALLIC BUTTERFLY VALVES FOR GENERAL PURPOSES)"
    scope: "Verified Engineering Specification"
url: "https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/product/flow-control-valvemeter.md"
on_chain_sovereignty:
  contract_standard: "ERC-721-Industrial"
  metadata_hash: "83d757613d7895ae408658023f0a740872b71bb301128df1f4134618c7461b18"
  royalty_logic: "IPFS-CID-REQUIRED"
  mint_status: "logic-verified-ready"
version: "3.3.4-EXTREME-SOVEREIGN-WEB3"
---

# Industrial Specification: Flow Control Valve/Meter

## 1. Technical Definition
A combined device that regulates and measures purge air flow in industrial systems

## 2. Engineering Reasoning & Causal Matrix
> **Operational Intelligence**: Designed for **0.5-15.0 bar at 20°C with 0.1% accuracy**. Failure boundary: **18.5 bar differential pressure causing diaphragm rupture**, Mechanism: **Diaphragm material yield strength (316L stainless steel) exceeded at 250 MPa stress due to Bernoulli's principle pressure differential**.

### 2.1 Analytical Physics Model
Governed by the **Darcy-Weisbach Pressure Drop**:

> **Primary Equation**: $\Delta P = f \cdot \frac{L}{D} \cdot \frac{\rho v^2}{2}$  
> **Engineering Impact**: Critical for sizing CIP (Clean-In-Place) pump heads.

| Symbol | Variable Definition | Localized Reference |
| :--- | :--- | :--- |
| f | Friction Factor | Engineering Constant |
| L | Pipe Length | Engineering Constant |
| v | Velocity | Engineering Constant |

### 2.2 FMEA (Failure Mode & Effects Analysis)
| Event Trigger | Severity | Failure Mode | Mitigation Strategy |
| :--- | :--- | :--- | :--- |
| Particulate contamination exceeding 10 μm in purge air stream | 8 | Orifice plate erosion causing 15% flow measurement error | Install 5 μm absolute filter with differential pressure monitoring at 0.3 bar warning threshold |
| Ambient temperature cycling between -40°C and 120°C | 8 | Thermal expansion mismatch between 316L stainless steel body and PTFE seals causing 0.2 mm gap leakage | Implement bellows-sealed stem design with Inconel 718 spring compensating for 0.15 mm thermal displacement |

## 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)`
- [Flow Meter Sensor](https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/product/flow-meter-sensor.md) `(Standalone System)`
- [Control Mechanism](https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/product/control-mechanism.md) `(Standalone System)`
- [Display/Output Module](https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/product/displayoutput-module.md) `(Standalone System)`

### Industrial DNA Context (De-duplicated)
**Complementary Dependencies**: **Industrial Air Compressor**, **Air Filtration System**, **Programmable Logic Controller (PLC)**  
**Downstream Applications**: Industrial Process Equipment, Manufacturing Assembly Lines, Packaging Machinery  

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

### Q: What industries commonly use this flow control valve/meter?
**A**: This device is designed for machinery and equipment manufacturing, specifically for industrial systems requiring precise purge air flow regulation and measurement, such as pneumatic systems, processing equipment, and automated machinery.

### Q: How does the combined valve and meter function improve system performance?
**A**: By integrating flow regulation and measurement into a single unit, it reduces installation points, minimizes potential leak points, ensures consistent calibration between control and measurement, and simplifies maintenance in industrial air systems.

### Q: What maintenance is required for the PTFE seals and stainless steel components?
**A**: PTFE seals offer excellent chemical resistance and low maintenance; periodic inspection for wear is recommended. Stainless steel components require standard industrial cleaning to prevent corrosion buildup; the valve body and sensor should be checked during routine system maintenance cycles.

## 6. Manufacturing Compliance
- ISO 5208:2015 (INDUSTRIAL VALVES - PRESSURE TESTING OF VALVES)
- ANSI/FCI 70-2-2013 (CONTROL VALVE SEAT LEAKAGE)
- DIN EN 1349:2009 (INDUSTRIAL VALVES - METALLIC BUTTERFLY VALVES FOR GENERAL PURPOSES)

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

### 🌐 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**: FLOW_CONTROL_VALVEMETER | **Authority**: CNFX-2026-ST-001 | **Fingerprint**: c0b7f35f
