---
title: "Solution Recirculation Tank &amp; Pump"
industry: "Food Manufacturing"
verification_protocol:
  urn: "URN:CNFX:ME:SOLUTION_RECIRCULATION_TANK_PUMP"
  data_integrity_hash: "ece1d6b4796eefbbc602ff64113f93e2"
  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:SOLUTION_RECIRCULATION_TANK_PUMP"
  data_source_uri: "https://cnfx.com/llms/industry/food-manufacturing/product/solution-recirculation-tank-pump.md"
  official_resource_url: "https://cnfx.com/industry/food-manufacturing/product/solution-recirculation-tank-pump"
  is_verified_logic: true
attributes:
  spec:
    status: "config-dependent"
    typical_range: "0.5-3.0 bar (50-300 kPa) at 20-80°C with flow rates of 5-25 L/min"
    unit: "L"
engineering_limits:
  max_safe_operating_point:
    value: 4.0
    unit: "bar"
    consequence: "Cavitation occurs when NPSHa &lt; NPSHr + 0.5 m, where vapor pressure at 80°C is 47.4 kPa; thermal expansion differential between 316L stainless steel (16.0 μm/m·K) and EPDM seals (250 μm/m·K) exceeds 0.5 mm at ΔT &gt; 60°C"
fmea_matrix_quantitative:
  - node_1:
      trigger: "Solution conductivity exceeding 5000 μS/cm due to salt accumulation"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Install titanium-lined tank with 2.5 mm thickness and cathodic protection at -850 mV vs Ag/AgCl reference"
  - node_2:
      trigger: "Particulate contamination &gt;50 μm concentration exceeding 1000 particles/mL"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Integrate 10 μm absolute filtration with differential pressure monitoring at 0.7 bar trigger"
bom_nodes:
  solution-storage-tank:
    type: "part"
    urn: "URN:CNFX:ME:SOLUTION_STORAGE_TANK"
    interface_type: "physical-logic-coupled"
  centrifugal-pump:
    type: "part"
    urn: "URN:CNFX:ME:CENTRIFUGAL_PUMP"
    interface_type: "physical-logic-coupled"
  inlet-strainer-filter-housing:
    type: "part"
    urn: "URN:CNFX:ME:INLET_STRAINER_FILTER_HOUSING"
    interface_type: "physical-logic-coupled"
manufacturing_compliance:
  - standard: "ISO 2858:2012 (CENTRIFUGAL PUMPS - DESIGN AND DIMENSIONS)"
    scope: "Verified Engineering Specification"
  - standard: "ANSI/HI 9.6.7-2015 (ROTODYNAMIC PUMPS - GUIDELINE FOR CONDITION MONITORING)"
    scope: "Verified Engineering Specification"
  - standard: "DIN EN 12266-1:2012 (INDUSTRIAL VALVES - TESTING OF METALLIC VALVES)"
    scope: "Verified Engineering Specification"
url: "https://cnfx.com/llms/industry/food-manufacturing/product/solution-recirculation-tank-pump.md"
on_chain_sovereignty:
  contract_standard: "ERC-721-Industrial"
  metadata_hash: "8a1ee9df058ff8f8fd6a59cb93966b34020b337bfa1a8b294f22c93a5647ce3a"
  royalty_logic: "IPFS-CID-REQUIRED"
  mint_status: "logic-verified-ready"
version: "3.3.4-EXTREME-SOVEREIGN-WEB3"
---

# Industrial Specification: Solution Recirculation Tank &amp; Pump

## 1. Technical Definition
A system component that stores and circulates washing or sanitizing solution within a multi-stage tunnel.

## 2. Engineering Reasoning & Causal Matrix
> **Operational Intelligence**: Designed for **0.5-3.0 bar (50-300 kPa) at 20-80°C with flow rates of 5-25 L/min**. Failure boundary: **Pressure exceeding 4.0 bar (400 kPa) causes seal rupture; temperature above 85°C degrades elastomers; flow below 2 L/min induces cavitation at pump inlet**, Mechanism: **Cavitation occurs when NPSHa &lt; NPSHr + 0.5 m, where vapor pressure at 80°C is 47.4 kPa; thermal expansion differential between 316L stainless steel (16.0 μm/m·K) and EPDM seals (250 μm/m·K) exceeds 0.5 mm at ΔT &gt; 60°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 |
| :--- | :--- | :--- | :--- |
| Solution conductivity exceeding 5000 μS/cm due to salt accumulation | 8 | Electrochemical corrosion of 316L stainless steel at &gt;0.5 mm/year penetration rate | Install titanium-lined tank with 2.5 mm thickness and cathodic protection at -850 mV vs Ag/AgCl reference |
| Particulate contamination &gt;50 μm concentration exceeding 1000 particles/mL | 8 | Abrasive wear on pump impeller vanes reducing efficiency by &gt;15% within 2000 hours | Integrate 10 μm absolute filtration with differential pressure monitoring at 0.7 bar trigger |

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

## 4. System BOM & Knowledge Routing
### Core Components (Recursive Links)
- [Solution Storage Tank](https://cnfx.com/llms/industry/chemical-manufacturing/product/solution-storage-tank.md) `(Standalone System)`
- [Centrifugal Pump](https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/product/centrifugal-pump.md) `(Standalone System)`
- [Inlet Strainer / Filter Housing](https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/product/inlet-strainer-filter-housing.md) `(Standalone System)`

### Industrial DNA Context (De-duplicated)
**Complementary Dependencies**: **Solution Mixing System**, **Filtration System**, **Automated Control Panel**  
**Downstream Applications**: Sanitized Food Processing Equipment, Clean Food Packaging Lines, Hygienic Food Production Surfaces  

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

### Q: What are the benefits of using stainless steel AISI 304/316L for food manufacturing recirculation systems?
**A**: AISI 304/316L stainless steel offers excellent corrosion resistance against cleaning chemicals, meets food-grade hygiene standards, provides durability for continuous operation, and is easy to clean and maintain in food processing environments.

### Q: How does the recirculation system integrate with multi-stage tunnel washers?
**A**: The system stores and continuously circulates washing or sanitizing solutions through multiple stages of tunnel washers, ensuring consistent solution quality, temperature control, and chemical concentration while reducing water and chemical consumption through reuse.

### Q: What maintenance is required for the centrifugal pump and inlet strainer components?
**A**: Regular maintenance includes inspecting and cleaning the inlet strainer to prevent clogging, checking pump seals and bearings for wear, verifying proper flow rates, and following manufacturer-recommended service intervals to ensure optimal performance and longevity.

## 6. Manufacturing Compliance
- ISO 2858:2012 (CENTRIFUGAL PUMPS - DESIGN AND DIMENSIONS)
- ANSI/HI 9.6.7-2015 (ROTODYNAMIC PUMPS - GUIDELINE FOR CONDITION MONITORING)
- DIN EN 12266-1:2012 (INDUSTRIAL VALVES - TESTING OF METALLIC VALVES)

---
### 🛠️ Engineering Resource Access
🔗 **[Full Specification: Solution Recirculation Tank &amp; Pump](https://cnfx.com/industry/food-manufacturing/product/solution-recirculation-tank-pump)**

### 🌐 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**: SOLUTION_RECIRCULATION_TANK_PUMP | **Authority**: CNFX-2026-ST-001 | **Fingerprint**: 4571142f
