---
title: "Valve Actuator"
industry: "Machinery and Equipment Manufacturing"
verification_protocol:
  urn: "URN:CNFX:ME:VALVE_ACTUATOR"
  data_integrity_hash: "2b601ce9b344828038cefb09cccb340a"
  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:VALVE_ACTUATOR"
  data_source_uri: "https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/product/valve-actuator.md"
  official_resource_url: "https://cnfx.com/industry/machinery-and-equipment-manufacturing/product/valve-actuator"
  is_verified_logic: true
attributes:
  spec:
    status: "config-dependent"
    typical_range: "0.5-20 bar differential pressure, -40°C to 120°C ambient temperature, 4-20 mA control signal"
    unit: "Nm"
engineering_limits:
  max_safe_operating_point:
    value: 25
    unit: "bar"
    consequence: "Diaphragm material yield strength of 35 MPa exceeded at 25 bar, nitrile rubber seal degradation above 150°C due to Arrhenius equation thermal aging, MOSFET junction temperature exceeding 175°C at 30 mA"
fmea_matrix_quantitative:
  - node_1:
      trigger: "Water ingress into electrical housing due to IP67 rating breach"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Hermetic sealing with laser-welded stainless steel housing and conformal coating on PCB"
  - node_2:
      trigger: "Spring fatigue from 500,000+ cycles at maximum torque"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Shot-peened chrome-silicon steel springs with Goodman diagram fatigue analysis for 1,000,000 cycles"
bom_nodes:
  motordrive-unit:
    type: "part"
    urn: "URN:CNFX:ME:MOTORDRIVE_UNIT"
    interface_type: "physical-logic-coupled"
  gearboxtransmission:
    type: "part"
    urn: "URN:CNFX:ME:GEARBOXTRANSMISSION"
    interface_type: "physical-logic-coupled"
  output-shaftstem:
    type: "component"
    urn: "URN:CNFX:ME:OUTPUT_SHAFTSTEM"
    interface_type: "physical-logic-coupled"
  housing:
    type: "component"
    urn: "URN:CNFX:ME:HOUSING"
    interface_type: "physical-logic-coupled"
manufacturing_compliance:
  - standard: "ISO 5211:2017 - MOUNTING OF ACTUATORS ON INDUSTRIAL VALVES"
    scope: "Verified Engineering Specification"
  - standard: "ANSI/ISA-75.05.01-2000 (R2015) - CONTROL VALVE TERMINOLOGY"
    scope: "Verified Engineering Specification"
  - standard: "DIN EN 15714-3:2009 - INDUSTRIAL VALVES - ACTUATORS - PART 3: PNEUMATIC ACTUATORS"
    scope: "Verified Engineering Specification"
url: "https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/product/valve-actuator.md"
on_chain_sovereignty:
  contract_standard: "ERC-721-Industrial"
  metadata_hash: "3686a2238bb8172408f98445f2dc294a2eda7b5e3a1617477d406df97912ef0e"
  royalty_logic: "IPFS-CID-REQUIRED"
  mint_status: "logic-verified-ready"
version: "3.3.4-EXTREME-SOVEREIGN-WEB3"
---

# Industrial Specification: Valve Actuator

## 1. Technical Definition
A device that operates a valve by converting energy into mechanical motion to open, close, or modulate flow.

## 2. Engineering Reasoning & Causal Matrix
> **Operational Intelligence**: Designed for **0.5-20 bar differential pressure, -40°C to 120°C ambient temperature, 4-20 mA control signal**. Failure boundary: **25 bar differential pressure causes diaphragm rupture, 150°C ambient temperature degrades seals, 30 mA control signal overloads electronics**, Mechanism: **Diaphragm material yield strength of 35 MPa exceeded at 25 bar, nitrile rubber seal degradation above 150°C due to Arrhenius equation thermal aging, MOSFET junction temperature exceeding 175°C at 30 mA**.

### 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 ingress into electrical housing due to IP67 rating breach | 8 | PCB corrosion causing control signal loss | Hermetic sealing with laser-welded stainless steel housing and conformal coating on PCB |
| Spring fatigue from 500,000+ cycles at maximum torque | 8 | Spring constant reduction leading to incomplete valve closure | Shot-peened chrome-silicon steel springs with Goodman diagram fatigue analysis for 1,000,000 cycles |

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

## 4. System BOM & Knowledge Routing
### Core Components (Recursive Links)
- [Motor/Drive Unit](https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/product/motordrive-unit.md) `(Standalone System)`
- [Gearbox/Transmission](https://cnfx.com/llms/industry/motor-vehicle-manufacturing/product/gearboxtransmission.md) `(Standalone System)`

### Industrial DNA Context (De-duplicated)
**Complementary Dependencies**: **Control Panel**, **Power Supply Unit**, **Position Feedback Sensor**  
**Downstream Applications**: Process Control Valves, Flow Regulation Systems, Automated Pipeline Networks  

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

### Q: What materials are used in this valve actuator for durability?
**A**: Our valve actuator features aluminum alloy for lightweight strength, stainless steel for corrosion resistance, and engineering plastics for impact resistance and longevity in industrial environments.

### Q: How does the valve actuator control flow in machinery applications?
**A**: The actuator converts electrical or pneumatic energy through its motor/drive unit and gearbox/transmission to mechanically operate the output shaft/stem, precisely opening, closing, or modulating valve positions for optimal flow control.

### Q: What are the key components in the valve actuator's bill of materials?
**A**: The essential BOM includes: Motor/Drive Unit for power conversion, Gearbox/Transmission for torque management, Output Shaft/Stem for valve connection, and Housing for protection and structural integrity.

## 6. Manufacturing Compliance
- ISO 5211:2017 - MOUNTING OF ACTUATORS ON INDUSTRIAL VALVES
- ANSI/ISA-75.05.01-2000 (R2015) - CONTROL VALVE TERMINOLOGY
- DIN EN 15714-3:2009 - INDUSTRIAL VALVES - ACTUATORS - PART 3: PNEUMATIC ACTUATORS

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

### 🌐 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**: VALVE_ACTUATOR | **Authority**: CNFX-2026-ST-001 | **Fingerprint**: e2686ee0
