---
title: "Jacket"
industry: "Chemical Manufacturing"
verification_protocol:
  urn: "URN:CNFX:ME:JACKET"
  data_integrity_hash: "d815554741f71807ce7fd385e9f185cb"
  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:JACKET"
  data_source_uri: "https://cnfx.com/llms/industry/chemical-manufacturing/product/jacket.md"
  official_resource_url: "https://cnfx.com/industry/chemical-manufacturing/product/jacket"
  is_verified_logic: true
attributes:
  spec:
    status: "config-dependent"
    typical_range: "0.5-3.0 MPa (5-30 bar) at 20-150°C with flow rates of 10-100 m³/h"
    unit: "mm"
engineering_limits:
  max_safe_operating_point:
    value: 4.2
    unit: "MPa"
    consequence: "Thermal fatigue from cyclic heating/cooling (ΔT&gt;100°C) induces crack propagation at stress concentrations; chloride stress corrosion cracking occurs at &gt;50 ppm Cl⁻ concentration above 60°C; erosion-corrosion accelerates at fluid velocities &gt;3 m/s with particulate content &gt;100 ppm"
fmea_matrix_quantitative:
  - node_1:
      trigger: "Coolant chemistry deviation to pH&lt;6.5 with dissolved oxygen &gt;50 ppb"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Install duplex stainless steel (UNS S32205) jackets with cathodic protection at -850 mV vs Ag/AgCl reference electrode"
  - node_2:
      trigger: "Thermal shock from &gt;40°C/min temperature transients during batch process changes"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Implement graded thermal cycling protocols with maximum ΔT of 25°C/min and install thermal stress-relief grooves at all geometric discontinuities"
bom_nodes:
  jacket-shell:
    type: "component"
    urn: "URN:CNFX:ME:JACKET_SHELL"
    interface_type: "physical-logic-coupled"
  inlet-nozzle:
    type: "component"
    urn: "URN:CNFX:ME:INLET_NOZZLE"
    interface_type: "physical-logic-coupled"
  outlet-nozzle:
    type: "component"
    urn: "URN:CNFX:ME:OUTLET_NOZZLE"
    interface_type: "physical-logic-coupled"
  bafflesflow-diverters:
    type: "component"
    urn: "URN:CNFX:ME:BAFFLESFLOW_DIVERTERS"
    interface_type: "physical-logic-coupled"
  drain-valve:
    type: "part"
    urn: "URN:CNFX:ME:DRAIN_VALVE"
    interface_type: "physical-logic-coupled"
manufacturing_compliance:
  - standard: "ISO 13688:2013 - PROTECTIVE CLOTHING - GENERAL REQUIREMENTS"
    scope: "Verified Engineering Specification"
  - standard: "EN 342:2017 - PROTECTIVE CLOTHING - ENSEMBLES AND GARMENTS FOR PROTECTION AGAINST COLD"
    scope: "Verified Engineering Specification"
url: "https://cnfx.com/llms/industry/chemical-manufacturing/product/jacket.md"
on_chain_sovereignty:
  contract_standard: "ERC-721-Industrial"
  metadata_hash: "460e8a13ca6685807d5428c8942442628757ab5ce6d08892ea2a290fa2b0f782"
  royalty_logic: "IPFS-CID-REQUIRED"
  mint_status: "logic-verified-ready"
version: "3.3.4-EXTREME-SOVEREIGN-WEB3"
---

# Industrial Specification: Jacket

## 1. Technical Definition
A hollow enclosure surrounding a mixing reactor vessel for temperature control through fluid circulation.

## 2. Engineering Reasoning & Causal Matrix
> **Operational Intelligence**: Designed for **0.5-3.0 MPa (5-30 bar) at 20-150°C with flow rates of 10-100 m³/h**. Failure boundary: **4.2 MPa burst pressure for carbon steel jackets, 180°C thermal stress limit for welded seams, 0.1 mm corrosion penetration depth**, Mechanism: **Thermal fatigue from cyclic heating/cooling (ΔT&gt;100°C) induces crack propagation at stress concentrations; chloride stress corrosion cracking occurs at &gt;50 ppm Cl⁻ concentration above 60°C; erosion-corrosion accelerates at fluid velocities &gt;3 m/s with particulate content &gt;100 ppm**.

### 2.2 FMEA (Failure Mode & Effects Analysis)
| Event Trigger | Severity | Failure Mode | Mitigation Strategy |
| :--- | :--- | :--- | :--- |
| Coolant chemistry deviation to pH&lt;6.5 with dissolved oxygen &gt;50 ppb | 8 | Accelerated pitting corrosion at weld heat-affected zones reducing wall thickness by &gt;0.5 mm/year | Install duplex stainless steel (UNS S32205) jackets with cathodic protection at -850 mV vs Ag/AgCl reference electrode |
| Thermal shock from &gt;40°C/min temperature transients during batch process changes | 8 | Brittle fracture initiation at nozzle-to-shell junctions due to σ_thermal &gt;250 MPa exceeding material yield strength | Implement graded thermal cycling protocols with maximum ΔT of 25°C/min and install thermal stress-relief grooves at all geometric discontinuities |

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

## 4. System BOM & Knowledge Routing
### Core Components (Recursive Links)
- [Drain Valve](https://cnfx.com/llms/industry/rubber-and-plastic-product-manufacturing/product/drain-valve.md) `(Standalone System)`

### Industrial DNA Context (De-duplicated)
**Complementary Dependencies**: **Temperature Control Unit**, **Circulation Pump**, **Heat Exchanger**  
**Downstream Applications**: Polymer Resins, Specialty Chemicals, Pharmaceutical Intermediates  

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

### Q: What materials are available for chemical reactor jackets?
**A**: Our reactor jackets are fabricated from stainless steel (304, 316L), carbon steel, Hastelloy, and titanium to withstand various chemical processes and corrosion requirements.

### Q: How does a reactor jacket maintain temperature control?
**A**: The hollow jacket enclosure circulates heating or cooling fluids around the reactor vessel, providing uniform temperature regulation for chemical mixing processes.

### Q: What components are included in a standard reactor jacket assembly?
**A**: Each jacket includes the shell, inlet/outlet nozzles for fluid circulation, baffles for optimal flow distribution, and a drain valve for maintenance.

## 6. Manufacturing Compliance
- ISO 13688:2013 - PROTECTIVE CLOTHING - GENERAL REQUIREMENTS
- EN 342:2017 - PROTECTIVE CLOTHING - ENSEMBLES AND GARMENTS FOR PROTECTION AGAINST COLD

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

### 🌐 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**: JACKET | **Authority**: CNFX-2026-ST-001 | **Fingerprint**: f4ebf8a0
