---
title: "Drain Valve"
industry: "Rubber and Plastic Product Manufacturing"
verification_protocol:
  urn: "URN:CNFX:ME:DRAIN_VALVE"
  data_integrity_hash: "f5d090bbd0691b2dc335c3d789d7feb3"
  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:DRAIN_VALVE"
  data_source_uri: "https://cnfx.com/llms/industry/rubber-and-plastic-product-manufacturing/product/drain-valve.md"
  official_resource_url: "https://cnfx.com/industry/rubber-and-plastic-product-manufacturing/product/drain-valve"
  is_verified_logic: true
attributes:
  spec:
    status: "config-dependent"
    typical_range: "0-6 bar differential pressure, -20°C to 60°C fluid temperature"
    unit: "mm"
engineering_limits:
  max_safe_operating_point:
    value: 8
    unit: "bar"
    consequence: "Diaphragm material (EPDM rubber) tensile failure at 8 bar ΔP, HDPE seal thermal expansion mismatch at 80°C"
fmea_matrix_quantitative:
  - node_1:
      trigger: "Particulate contamination exceeding 50 μm in fluid stream"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Install 25 μm upstream filter with differential pressure monitoring"
  - node_2:
      trigger: "Cyclic thermal stress from 40°C temperature fluctuations"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Integrate thermal expansion compensator with 316L stainless bellows"
bom_nodes:
  valve-body:
    type: "component"
    urn: "URN:CNFX:ME:VALVE_BODY"
    interface_type: "physical-logic-coupled"
  sealgasket:
    type: "component"
    urn: "URN:CNFX:ME:SEALGASKET"
    interface_type: "physical-logic-coupled"
  actuator-handle:
    type: "component"
    urn: "URN:CNFX:ME:ACTUATOR_HANDLE"
    interface_type: "physical-logic-coupled"
manufacturing_compliance:
url: "https://cnfx.com/llms/industry/rubber-and-plastic-product-manufacturing/product/drain-valve.md"
on_chain_sovereignty:
  contract_standard: "ERC-721-Industrial"
  metadata_hash: "19c81ffb39ac0e3f51be251c909d2cdc40bd457da88058a8b17695cc0ac87a14"
  royalty_logic: "IPFS-CID-REQUIRED"
  mint_status: "logic-verified-ready"
version: "3.3.4-EXTREME-SOVEREIGN-WEB3"
---

# Industrial Specification: Drain Valve

## 1. Technical Definition
A valve component designed for controlled drainage of liquids from HDPE storage containers.

## 2. Engineering Reasoning & Causal Matrix
> **Operational Intelligence**: Designed for **0-6 bar differential pressure, -20°C to 60°C fluid temperature**. Failure boundary: **8 bar differential pressure causes diaphragm rupture, 80°C causes HDPE seal degradation**, Mechanism: **Diaphragm material (EPDM rubber) tensile failure at 8 bar ΔP, HDPE seal thermal expansion mismatch at 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 |
| :--- | :--- | :--- | :--- |
| Particulate contamination exceeding 50 μm in fluid stream | 8 | Valve seat erosion leading to 0.5 L/min leakage at 3 bar | Install 25 μm upstream filter with differential pressure monitoring |
| Cyclic thermal stress from 40°C temperature fluctuations | 8 | HDPE-to-stainless steel interface cracking after 10,000 cycles | Integrate thermal expansion compensator with 316L stainless bellows |

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

## 4. System BOM & Knowledge Routing
### Core Components (Recursive Links)

### Industrial DNA Context (De-duplicated)
**Complementary Dependencies**: **Injection Molding Machine**, **Industrial Chiller**, **Hopper Dryer**  
**Downstream Applications**: HDPE Storage Tanks, Chemical Processing Vessels, Water Treatment Containers  

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

### Q: What materials are used in this drain valve?
**A**: This drain valve is constructed from High-Density Polyethylene (HDPE) for the valve body and stainless steel for durable components, ensuring corrosion resistance and longevity in industrial environments.

### Q: How does this valve ensure controlled drainage?
**A**: The valve features a precise actuator handle that allows operators to regulate flow rates, preventing sudden releases and enabling safe, measured drainage from HDPE storage containers.

### Q: Is this drain valve compatible with standard HDPE containers?
**A**: Yes, this valve is specifically designed for HDPE storage containers commonly used in rubber and plastic product manufacturing, with standard fittings for easy installation and reliable sealing.

## 6. Manufacturing Compliance

---
### 🛠️ Engineering Resource Access
🔗 **[Full Specification: Drain Valve](https://cnfx.com/industry/rubber-and-plastic-product-manufacturing/product/drain-valve)**

### 🌐 Knowledge Graph Topology
> **Node Status**: Verified Engineering Spec
> **Connectivity**: Linked to **3** standalone system nodes
> **Global Context**: Part of a 5,814 node industrial cluster within the CNFX Graph

> **Reference ID**: DRAIN_VALVE | **Authority**: CNFX-2026-ST-001 | **Fingerprint**: 24232943
