---
title: "Backwash Valve Assembly"
industry: "Machinery and Equipment Manufacturing"
verification_protocol:
  urn: "URN:CNFX:ME:BACKWASH_VALVE_ASSEMBLY"
  data_integrity_hash: "813f5c450da1a515cce3692860bc45b3"
  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:BACKWASH_VALVE_ASSEMBLY"
  data_source_uri: "https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/product/backwash-valve-assembly.md"
  official_resource_url: "https://cnfx.com/industry/machinery-and-equipment-manufacturing/product/backwash-valve-assembly"
  is_verified_logic: true
attributes:
  spec:
    status: "config-dependent"
    typical_range: "0.5-6.0 bar (7.25-87.0 psi)"
    unit: "mm"
engineering_limits:
  max_safe_operating_point:
    value: 8.0
    unit: "bar"
    consequence: "Plastic deformation of valve seat material (EPDM rubber) exceeding yield strength of 15 MPa at 8.0 bar differential pressure, causing permanent seal deformation and leakage"
fmea_matrix_quantitative:
  - node_1:
      trigger: "Particulate contamination exceeding 50 μm diameter in fluid stream"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Install 25 μm pre-filter upstream with differential pressure monitoring at 0.5 bar threshold"
  - node_2:
      trigger: "Water hammer pressure spike exceeding 10 bar during rapid valve closure (0.2 second actuation)"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Implement controlled closure algorithm with 1.0 second minimum actuation time and pressure relief valve set at 7.0 bar"
bom_nodes:
  valve-body:
    type: "part"
    urn: "URN:CNFX:ME:VALVE_BODY"
    interface_type: "physical-logic-coupled"
  actuator:
    type: "part"
    urn: "URN:CNFX:ME:ACTUATOR"
    interface_type: "physical-logic-coupled"
  sealsgaskets:
    type: "component"
    urn: "URN:CNFX:ME:SEALSGASKETS"
    interface_type: "physical-logic-coupled"
  control-mechanism:
    type: "part"
    urn: "URN:CNFX:ME:CONTROL_MECHANISM"
    interface_type: "physical-logic-coupled"
manufacturing_compliance:
  - standard: "ISO 5208:2015 (INDUSTRIAL VALVES - PRESSURE TESTING OF VALVES)"
    scope: "Verified Engineering Specification"
url: "https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/product/backwash-valve-assembly.md"
on_chain_sovereignty:
  contract_standard: "ERC-721-Industrial"
  metadata_hash: "18d756b54d488523bc19040ec01a1959e90dd60c8b25e24e884290490c8ff40a"
  royalty_logic: "IPFS-CID-REQUIRED"
  mint_status: "logic-verified-ready"
version: "3.3.4-EXTREME-SOVEREIGN-WEB3"
---

# Industrial Specification: Backwash Valve Assembly

## 1. Technical Definition
A valve assembly specifically designed to control and direct the flow of water or cleaning solution during the backwash cycle of filtration systems.

## 2. Engineering Reasoning & Causal Matrix
> **Operational Intelligence**: Designed for **0.5-6.0 bar (7.25-87.0 psi)**. Failure boundary: **8.0 bar (116.0 psi) differential pressure across valve seat**, Mechanism: **Plastic deformation of valve seat material (EPDM rubber) exceeding yield strength of 15 MPa at 8.0 bar differential pressure, causing permanent seal deformation and leakage**.

### 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 diameter in fluid stream | 8 | Seal abrasion leading to 0.1 L/min leakage at 3.0 bar | Install 25 μm pre-filter upstream with differential pressure monitoring at 0.5 bar threshold |
| Water hammer pressure spike exceeding 10 bar during rapid valve closure (0.2 second actuation) | 8 | Actuator shaft shear failure at 45 MPa torsional stress | Implement controlled closure algorithm with 1.0 second minimum actuation time and pressure relief valve set at 7.0 bar |

## 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)`
- [Actuator](https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/product/actuator.md) `(Standalone System)`
- [Control Mechanism](https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/product/control-mechanism.md) `(Standalone System)`

### Industrial DNA Context (De-duplicated)
**Complementary Dependencies**: **Filtration System**, **Pump Assembly**, **Control Panel**  
**Downstream Applications**: Industrial Water Filters, Swimming Pool Filters, Commercial Aquarium Systems  

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

### Q: What materials are used in this backwash valve assembly?
**A**: Our backwash valve assembly is constructed from durable materials including stainless steel, brass, or PVC for the valve body, with EPDM seals for reliable performance in filtration systems.

### Q: What components are included in the backwash valve assembly?
**A**: The assembly includes an actuator for operation, a control mechanism for flow direction, seals and gaskets for leak prevention, and a valve body that houses all components.

### Q: How does this valve assembly improve filtration system maintenance?
**A**: This backwash valve assembly efficiently controls and directs water flow during backwash cycles, ensuring thorough cleaning of filter media and extending the lifespan of your filtration system.

## 6. Manufacturing Compliance
- ISO 5208:2015 (INDUSTRIAL VALVES - PRESSURE TESTING OF VALVES)

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

### 🌐 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**: BACKWASH_VALVE_ASSEMBLY | **Authority**: CNFX-2026-ST-001 | **Fingerprint**: c3262d5b
