---
title: "Servo Control Valve"
industry: "Basic Metal Manufacturing"
verification_protocol:
  urn: "URN:CNFX:ME:SERVO_CONTROL_VALVE"
  data_integrity_hash: "f587ad862ca6190b55f7c9ae0152f6cf"
  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:SERVO_CONTROL_VALVE"
  data_source_uri: "https://cnfx.com/llms/industry/basic-metal-manufacturing/product/servo-control-valve.md"
  official_resource_url: "https://cnfx.com/industry/basic-metal-manufacturing/product/servo-control-valve"
  is_verified_logic: true
attributes:
  spec:
    status: "config-dependent"
    typical_range: "0.5-350 bar, 0.1-100 L/min flow rate, -40°C to 120°C fluid temperature"
    unit: "l/min"
engineering_limits:
  max_safe_operating_point:
    value: 0.1
    unit: "mm"
    consequence: "Spool sticking due to particle contamination exceeding 5 μm size, magnetic saturation at coil current &gt; 2.5 A, cavitation at pressure drop &gt; 70 bar across valve, thermal expansion mismatch at ΔT &gt; 80°C"
fmea_matrix_quantitative:
  - node_1:
      trigger: "Hydraulic fluid contamination with particles &gt; 5 μm"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Install 3 μm absolute filtration with pressure drop monitoring at 0.5 bar threshold"
  - node_2:
      trigger: "Coil current exceeding 2.5 A for &gt; 100 ms"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Implement current limiting circuit with 2.3 A hard limit and thermal derating above 100°C"
bom_nodes:
  torque-motor-solenoid:
    type: "part"
    urn: "URN:CNFX:ME:TORQUE_MOTOR_SOLENOID"
    interface_type: "physical-logic-coupled"
  spool-and-sleeve-assembly:
    type: "part"
    urn: "URN:CNFX:ME:SPOOL_AND_SLEEVE_ASSEMBLY"
    interface_type: "physical-logic-coupled"
  filter-internal:
    type: "component"
    urn: "URN:CNFX:ME:FILTER_INTERNAL"
    interface_type: "physical-logic-coupled"
  feedback-sensor-e-g-lvdt:
    type: "part"
    urn: "URN:CNFX:ME:FEEDBACK_SENSOR_E_G_LVDT"
    interface_type: "physical-logic-coupled"
manufacturing_compliance:
url: "https://cnfx.com/llms/industry/basic-metal-manufacturing/product/servo-control-valve.md"
on_chain_sovereignty:
  contract_standard: "ERC-721-Industrial"
  metadata_hash: "ba50444ec0bbf4889de38a745850877c3eff9c260b7b3b2ad506f53712545f00"
  royalty_logic: "IPFS-CID-REQUIRED"
  mint_status: "logic-verified-ready"
version: "3.3.4-EXTREME-SOVEREIGN-WEB3"
---

# Industrial Specification: Servo Control Valve

## 1. Technical Definition
A precision hydraulic valve that regulates fluid flow and pressure in response to electrical control signals to achieve accurate positioning and force control.

## 2. Engineering Reasoning & Causal Matrix
> **Operational Intelligence**: Designed for **0.5-350 bar, 0.1-100 L/min flow rate, -40°C to 120°C fluid temperature**. Failure boundary: **Spool valve clearance exceeds 5 μm, spool position error &gt; 0.1 mm, coil temperature &gt; 150°C, fluid contamination &gt; ISO 4406 18/16/13**, Mechanism: **Spool sticking due to particle contamination exceeding 5 μm size, magnetic saturation at coil current &gt; 2.5 A, cavitation at pressure drop &gt; 70 bar across valve, thermal expansion mismatch at ΔT &gt; 80°C**.

### 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 |
| :--- | :--- | :--- | :--- |
| Hydraulic fluid contamination with particles &gt; 5 μm | 8 | Spool valve sticking causing position error &gt; 0.1 mm | Install 3 μm absolute filtration with pressure drop monitoring at 0.5 bar threshold |
| Coil current exceeding 2.5 A for &gt; 100 ms | 8 | Magnetic saturation leading to position control loss &gt; 0.2 mm error | Implement current limiting circuit with 2.3 A hard limit and thermal derating above 100°C |

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

## 4. System BOM & Knowledge Routing
### Core Components (Recursive Links)
- [Torque Motor / Solenoid](https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/product/torque-motor-solenoid.md) `(Standalone System)`
- [Spool and Sleeve Assembly](https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/product/spool-and-sleeve-assembly.md) `(Standalone System)`
- [Feedback Sensor (e.g., LVDT)](https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/product/feedback-sensor-e-g-lvdt.md) `(Standalone System)`

### Industrial DNA Context (De-duplicated)
**Complementary Dependencies**: **Hydraulic Power Unit**, **Programmable Logic Controller**, **Position Feedback Sensor**  
**Downstream Applications**: Steel Rolling Mill Components, Aluminum Extrusion Profiles, Metal Casting Molds  

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

### Q: What makes this servo control valve suitable for basic metal manufacturing applications?
**A**: This valve is specifically engineered for the demanding environments of basic metal manufacturing, featuring alloy steel construction for durability, precise flow regulation for consistent metal processing, and robust sealing to handle hydraulic fluids under high pressure and temperature variations common in metal production.

### Q: How does the feedback sensor improve valve performance in metal manufacturing?
**A**: The integrated feedback sensor (typically an LVDT) provides real-time position feedback to the control system, enabling closed-loop control that ensures accurate spool positioning. This results in precise flow and pressure regulation critical for consistent metal forming, cutting, and shaping operations where repeatability is essential.

### Q: What maintenance considerations are important for servo control valves in metal manufacturing environments?
**A**: Regular maintenance should include monitoring hydraulic fluid cleanliness through the internal filter, inspecting fluorocarbon elastomer seals for wear from high temperatures and pressures, and checking for contamination that could affect spool/sleeve assembly movement. Proper filtration and fluid maintenance are crucial due to the metal particulates often present in manufacturing environments.

## 6. Manufacturing Compliance

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### 🛠️ Engineering Resource Access
🔗 **[Full Specification: Servo Control Valve](https://cnfx.com/industry/basic-metal-manufacturing/product/servo-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**: SERVO_CONTROL_VALVE | **Authority**: CNFX-2026-ST-001 | **Fingerprint**: 374c8b58
