---
title: "Heating/Cooling Jacket"
industry: "Chemical Manufacturing"
verification_protocol:
  urn: "URN:CNFX:ME:HEATINGCOOLING_JACKET"
  data_integrity_hash: "b4f67aaec56688cad31130b7c9912033"
  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:HEATINGCOOLING_JACKET"
  data_source_uri: "https://cnfx.com/llms/industry/chemical-manufacturing/product/heatingcooling-jacket.md"
  official_resource_url: "https://cnfx.com/industry/chemical-manufacturing/product/heatingcooling-jacket"
  is_verified_logic: true
attributes:
  spec:
    status: "config-dependent"
    typical_range: "0.5-6.0 bar (gauge pressure), -20°C to 200°C (fluid temperature)"
    unit: "mm"
engineering_limits:
  max_safe_operating_point:
    value: 8.0
    unit: "bar"
    consequence: "Thermal fatigue from cyclic stress exceeding 207 MPa yield strength of 316L stainless steel at ΔT&gt;150°C, causing crack propagation at stress concentrations"
fmea_matrix_quantitative:
  - node_1:
      trigger: "Fluid velocity exceeding 3 m/s causing erosion-corrosion"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Installation of erosion-resistant Inconel 625 baffles at flow impingement points"
  - node_2:
      trigger: "Glycol concentration dropping below 40% v/v in heat transfer fluid"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Automated glycol concentration monitoring with 35% v/v low-level alarm and automatic makeup system"
bom_nodes:
  jacket-shell:
    type: "component"
    urn: "URN:CNFX:ME:JACKET_SHELL"
    interface_type: "physical-logic-coupled"
  inletoutlet-nozzles:
    type: "component"
    urn: "URN:CNFX:ME:INLETOUTLET_NOZZLES"
    interface_type: "physical-logic-coupled"
  baffles:
    type: "component"
    urn: "URN:CNFX:ME:BAFFLES"
    interface_type: "physical-logic-coupled"
manufacturing_compliance:
  - standard: "ISO 9001:2015 (QUALITY MANAGEMENT SYSTEMS)"
    scope: "Verified Engineering Specification"
  - standard: "ASME BPE-2019 (BIOPROCESSING EQUIPMENT)"
    scope: "Verified Engineering Specification"
  - standard: "EN 13445-3:2021 (UNFIRED PRESSURE VESSELS)"
    scope: "Verified Engineering Specification"
url: "https://cnfx.com/llms/industry/chemical-manufacturing/product/heatingcooling-jacket.md"
on_chain_sovereignty:
  contract_standard: "ERC-721-Industrial"
  metadata_hash: "70f0c3e0e4cb5bd417d0a9bbf3f402505c185d6f10c71e840842d10fec91663c"
  royalty_logic: "IPFS-CID-REQUIRED"
  mint_status: "logic-verified-ready"
version: "3.3.4-EXTREME-SOVEREIGN-WEB3"
---

# Industrial Specification: Heating/Cooling Jacket

## 1. Technical Definition
A temperature control component that surrounds a reactor vessel to heat or cool its contents through fluid circulation.

## 2. Engineering Reasoning & Causal Matrix
> **Operational Intelligence**: Designed for **0.5-6.0 bar (gauge pressure), -20°C to 200°C (fluid temperature)**. Failure boundary: **8.0 bar burst pressure for carbon steel jackets, 250°C thermal degradation temperature for EPDM gaskets**, Mechanism: **Thermal fatigue from cyclic stress exceeding 207 MPa yield strength of 316L stainless steel at ΔT&gt;150°C, causing crack propagation at stress concentrations**.

### 2.1 Analytical Physics Model
Governed by the **LMTD Logarithmic Mean Temperature Difference**:

> **Primary Equation**: $Q = U \cdot A \cdot \Delta T_{lm}$  
> **Engineering Impact**: Sizing validation for pasteurization and cooling tunnels.

| Symbol | Variable Definition | Localized Reference |
| :--- | :--- | :--- |
| U | Heat Transfer Coeff | Engineering Constant |
| A | Area | Engineering Constant |
| \Delta T_{lm} | LMTD | Engineering Constant |

### 2.2 FMEA (Failure Mode & Effects Analysis)
| Event Trigger | Severity | Failure Mode | Mitigation Strategy |
| :--- | :--- | :--- | :--- |
| Fluid velocity exceeding 3 m/s causing erosion-corrosion | 8 | Wall thickness reduction below 2.0 mm minimum design specification | Installation of erosion-resistant Inconel 625 baffles at flow impingement points |
| Glycol concentration dropping below 40% v/v in heat transfer fluid | 8 | Ice crystal formation and expansion at -15°C causing jacket rupture | Automated glycol concentration monitoring with 35% v/v low-level alarm and automatic makeup system |

## 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**: **Temperature Control Unit**, **Circulation Pump**, **Heat Exchanger**  
**Downstream Applications**: Pharmaceutical Intermediates, Polymer Resins, Specialty Chemicals  

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

### Q: What materials are available for heating/cooling jackets in chemical manufacturing?
**A**: Our jackets are available in Stainless Steel 316L for corrosion resistance, Carbon Steel for cost-effective applications, and Hastelloy for extreme chemical environments.

### Q: How does a heating/cooling jacket maintain reactor temperature?
**A**: The jacket surrounds the reactor vessel and circulates heating or cooling fluid through its shell, with baffles ensuring even temperature distribution for consistent process control.

### Q: What components are included in a standard heating/cooling jacket BOM?
**A**: Standard bill of materials includes the jacket shell, inlet/outlet nozzles for fluid connection, and internal baffles to optimize heat transfer efficiency.

## 6. Manufacturing Compliance
- ISO 9001:2015 (QUALITY MANAGEMENT SYSTEMS)
- ASME BPE-2019 (BIOPROCESSING EQUIPMENT)
- EN 13445-3:2021 (UNFIRED PRESSURE VESSELS)

---
### 🛠️ Engineering Resource Access
🔗 **[Full Specification: Heating/Cooling Jacket](https://cnfx.com/industry/chemical-manufacturing/product/heatingcooling-jacket)**

### 🌐 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**: HEATINGCOOLING_JACKET | **Authority**: CNFX-2026-ST-001 | **Fingerprint**: 5f8d1f7f
