---
title: "Drainage Grid"
industry: "Machinery and Equipment Manufacturing"
verification_protocol:
  urn: "URN:CNFX:ME:DRAINAGE_GRID"
  data_integrity_hash: "30872ba5bba2df49f86fabc0a4cb1ae7"
  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:DRAINAGE_GRID"
  data_source_uri: "https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/product/drainage-grid.md"
  official_resource_url: "https://cnfx.com/industry/machinery-and-equipment-manufacturing/product/drainage-grid"
  is_verified_logic: true
attributes:
  spec:
    status: "config-dependent"
    typical_range: "0-2.5 bar differential pressure"
    unit: "mm"
engineering_limits:
  max_safe_operating_point:
    value: 3.8
    unit: "bar"
    consequence: "Exceeding yield strength (σ_y = 275 MPa for 304 stainless steel) causing plastic deformation that permanently alters slot geometry, reducing drainage efficiency below 85% of design specification"
fmea_matrix_quantitative:
  - node_1:
      trigger: "Solid particle accumulation exceeding 40% of slot cross-sectional area"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Install ultrasonic cleaning system operating at 40 kHz with 15-minute intervals"
  - node_2:
      trigger: "Corrosion rate exceeding 0.1 mm/year in chloride environments (&gt;500 ppm Cl⁻)"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Apply duplex stainless steel (2205 grade) with PREN &gt;35 for chloride resistance"
bom_nodes:
  grid-frame:
    type: "component"
    urn: "URN:CNFX:ME:GRID_FRAME"
    interface_type: "physical-logic-coupled"
  perforatedslotted-plate:
    type: "part"
    urn: "URN:CNFX:ME:PERFORATEDSLOTTED_PLATE"
    interface_type: "physical-logic-coupled"
  support-ribs:
    type: "component"
    urn: "URN:CNFX:ME:SUPPORT_RIBS"
    interface_type: "physical-logic-coupled"
manufacturing_compliance:
  - standard: "ISO 9001:2015 - QUALITY MANAGEMENT SYSTEMS"
    scope: "Verified Engineering Specification"
  - standard: "EN 124:2015 - GULLY TOPS AND MANHOLE TOPS FOR VEHICULAR AND PEDESTRIAN AREAS"
    scope: "Verified Engineering Specification"
url: "https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/product/drainage-grid.md"
on_chain_sovereignty:
  contract_standard: "ERC-721-Industrial"
  metadata_hash: "e18c62de218a20e193fff2f9b079807dc318c68dcad1d83d10d60b2a208db92a"
  royalty_logic: "IPFS-CID-REQUIRED"
  mint_status: "logic-verified-ready"
version: "3.3.4-EXTREME-SOVEREIGN-WEB3"
---

# Industrial Specification: Drainage Grid

## 1. Technical Definition
A perforated or slotted grid component within a filter drum that facilitates liquid drainage while retaining solid materials.

## 2. Engineering Reasoning & Causal Matrix
> **Operational Intelligence**: Designed for **0-2.5 bar differential pressure**. Failure boundary: **3.8 bar differential pressure causing permanent plastic deformation of grid slots**, Mechanism: **Exceeding yield strength (σ_y = 275 MPa for 304 stainless steel) causing plastic deformation that permanently alters slot geometry, reducing drainage efficiency below 85% of design specification**.

### 2.2 FMEA (Failure Mode & Effects Analysis)
| Event Trigger | Severity | Failure Mode | Mitigation Strategy |
| :--- | :--- | :--- | :--- |
| Solid particle accumulation exceeding 40% of slot cross-sectional area | 8 | Reduced drainage flow rate below 60% of design specification | Install ultrasonic cleaning system operating at 40 kHz with 15-minute intervals |
| Corrosion rate exceeding 0.1 mm/year in chloride environments (&gt;500 ppm Cl⁻) | 8 | Slot enlargement beyond 150% of design width causing solid material breakthrough | Apply duplex stainless steel (2205 grade) with PREN &gt;35 for chloride resistance |

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

## 4. System BOM & Knowledge Routing
### Core Components (Recursive Links)
- [Perforated/Slotted Plate](https://cnfx.com/llms/industry/fabricated-metal-product-manufacturing/product/perforatedslotted-plate.md) `(Standalone System)`

### Industrial DNA Context (De-duplicated)
**Complementary Dependencies**: **Filter Drum Assembly Machine**, **Perforation Press**, **Material Handling Conveyor**  
**Downstream Applications**: Industrial Filter Systems, Wastewater Treatment Equipment, Chemical Processing Machinery  

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

### Q: What materials are available for drainage grids in machinery manufacturing?
**A**: Our drainage grids are manufactured from Stainless Steel 304/316 for corrosion resistance, Carbon Steel for high-strength applications, and Polypropylene for chemical compatibility and lightweight needs.

### Q: What is the function of the support ribs in a drainage grid?
**A**: Support ribs provide structural integrity to the grid frame, preventing deformation under pressure and ensuring consistent spacing for optimal liquid drainage and solid retention within the filter drum.

### Q: How does a perforated vs. slotted plate affect drainage grid performance?
**A**: Perforated plates with round holes offer uniform drainage for fine solids, while slotted plates with elongated openings provide higher flow rates and are better for stringy or fibrous materials, depending on your filtration needs.

## 6. Manufacturing Compliance
- ISO 9001:2015 - QUALITY MANAGEMENT SYSTEMS
- EN 124:2015 - GULLY TOPS AND MANHOLE TOPS FOR VEHICULAR AND PEDESTRIAN AREAS

---
### 🛠️ Engineering Resource Access
🔗 **[Full Specification: Drainage Grid](https://cnfx.com/industry/machinery-and-equipment-manufacturing/product/drainage-grid)**

### 🌐 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**: DRAINAGE_GRID | **Authority**: CNFX-2026-ST-001 | **Fingerprint**: 2781b33f
