---
title: "RO Membrane Elements"
industry: "Machinery and Equipment Manufacturing"
verification_protocol:
  urn: "URN:CNFX:ME:RO_MEMBRANE_ELEMENTS"
  data_integrity_hash: "338ce657ace04ee2ee08a18a342a7dd5"
  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:RO_MEMBRANE_ELEMENTS"
  data_source_uri: "https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/product/ro-membrane-elements.md"
  official_resource_url: "https://cnfx.com/industry/machinery-and-equipment-manufacturing/product/ro-membrane-elements"
  is_verified_logic: true
attributes:
  spec:
    status: "config-dependent"
    typical_range: "2.8-41.4 bar (40-600 psi)"
    unit: "inch"
engineering_limits:
  max_safe_operating_point:
    value: 69
    unit: "bar"
    consequence: "Polymer chain scission and delamination of active layer from polysulfone support due to transmembrane pressure exceeding yield strength of composite structure"
fmea_matrix_quantitative:
  - node_1:
      trigger: "Chlorine concentration exceeding 0.1 ppm in feed water"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Sodium bisulfite injection system maintaining ORP &lt;200 mV upstream"
  - node_2:
      trigger: "Silica scaling saturation index exceeding 1.2 at membrane surface"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Antiscalant dosing at 3-5 mg/L maintaining Langelier Saturation Index &lt;0.5"
bom_nodes:
  membrane-leaves:
    type: "component"
    urn: "URN:CNFX:ME:MEMBRANE_LEAVES"
    interface_type: "physical-logic-coupled"
  feed-spacer:
    type: "component"
    urn: "URN:CNFX:ME:FEED_SPACER"
    interface_type: "physical-logic-coupled"
  permeate-spacer:
    type: "component"
    urn: "URN:CNFX:ME:PERMEATE_SPACER"
    interface_type: "physical-logic-coupled"
  central-tube:
    type: "component"
    urn: "URN:CNFX:ME:CENTRAL_TUBE"
    interface_type: "physical-logic-coupled"
  anti-telescoping-device:
    type: "part"
    urn: "URN:CNFX:ME:ANTI_TELESCOPING_DEVICE"
    interface_type: "physical-logic-coupled"
manufacturing_compliance:
  - standard: "ISO 9001:2015 - QUALITY MANAGEMENT SYSTEMS"
    scope: "Verified Engineering Specification"
  - standard: "CE MARKING - EU COMPLIANCE FOR PRESSURE EQUIPMENT (PED 2014/68/EU)"
    scope: "Verified Engineering Specification"
url: "https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/product/ro-membrane-elements.md"
on_chain_sovereignty:
  contract_standard: "ERC-721-Industrial"
  metadata_hash: "8a8fe2c6a982a31017897b091a429f9eba5fab79c1ae47318c09ecb730af7571"
  royalty_logic: "IPFS-CID-REQUIRED"
  mint_status: "logic-verified-ready"
version: "3.3.4-EXTREME-SOVEREIGN-WEB3"
---

# Industrial Specification: RO Membrane Elements

## 1. Technical Definition
The core filtration component in a reverse osmosis system that separates dissolved solids and contaminants from water.

## 2. Engineering Reasoning & Causal Matrix
> **Operational Intelligence**: Designed for **2.8-41.4 bar (40-600 psi)**. Failure boundary: **69 bar (1000 psi) burst pressure for polyamide thin-film composite membranes**, Mechanism: **Polymer chain scission and delamination of active layer from polysulfone support due to transmembrane pressure exceeding yield strength of composite structure**.

### 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 |
| :--- | :--- | :--- | :--- |
| Chlorine concentration exceeding 0.1 ppm in feed water | 8 | Oxidative degradation of polyamide active layer causing salt rejection decline to &lt;95% | Sodium bisulfite injection system maintaining ORP &lt;200 mV upstream |
| Silica scaling saturation index exceeding 1.2 at membrane surface | 8 | Amorphous silica precipitation reducing permeate flux by &gt;15% from design specification | Antiscalant dosing at 3-5 mg/L maintaining Langelier Saturation Index &lt;0.5 |

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

## 4. System BOM & Knowledge Routing
### Core Components (Recursive Links)
- [Anti-telescoping Device](https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/product/anti-telescoping-device.md) `(Standalone System)`

### Industrial DNA Context (De-duplicated)
**Complementary Dependencies**: **High-Pressure Pump**, **Pre-Filtration System**, **Membrane Housing Assembly**  
**Downstream Applications**: Potable Water, Industrial Process Water, Pharmaceutical-Grade Water  

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

### Q: What materials are used in RO membrane elements?
**A**: Our RO membrane elements feature a polyamide thin-film composite active layer, polysulfone support layer, and polyester backing for durability and high filtration performance.

### Q: How do RO membrane elements work in water purification systems?
**A**: RO membrane elements act as the core filtration component, using semi-permeable membranes to separate dissolved solids, salts, and contaminants from water under pressure, producing purified permeate water.

### Q: What maintenance do RO membrane elements require?
**A**: Regular cleaning with approved chemicals, monitoring of pressure differentials, and periodic replacement based on performance decline are essential for maintaining RO membrane efficiency and longevity.

## 6. Manufacturing Compliance
- ISO 9001:2015 - QUALITY MANAGEMENT SYSTEMS
- CE MARKING - EU COMPLIANCE FOR PRESSURE EQUIPMENT (PED 2014/68/EU)

---
### 🛠️ Engineering Resource Access
🔗 **[Full Specification: RO Membrane Elements](https://cnfx.com/industry/machinery-and-equipment-manufacturing/product/ro-membrane-elements)**

### 🌐 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**: RO_MEMBRANE_ELEMENTS | **Authority**: CNFX-2026-ST-001 | **Fingerprint**: 5016aec8
