---
title: "Trap Body"
industry: "Machinery and Equipment Manufacturing"
verification_protocol:
  urn: "URN:CNFX:ME:TRAP_BODY"
  data_integrity_hash: "0682c4c424c179b3ce36d089663697b7"
  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:TRAP_BODY"
  data_source_uri: "https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/product/trap-body.md"
  official_resource_url: "https://cnfx.com/industry/machinery-and-equipment-manufacturing/product/trap-body"
  is_verified_logic: true
attributes:
  spec:
    status: "config-dependent"
    typical_range: "0.1-10 bar absolute pressure, -196°C to 150°C temperature"
    unit: "mm"
engineering_limits:
  max_safe_operating_point:
    value: 15
    unit: "bar"
    consequence: "Brittle fracture due to ductile-to-brittle transition temperature of austenitic stainless steel below -100°C, combined with stress concentration at weld joints exceeding material's fracture toughness (200 MPa·m¹/²)"
fmea_matrix_quantitative:
  - node_1:
      trigger: "Coolant flow interruption for 120 seconds at -80°C operating temperature"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Redundant thermocouple array with PID-controlled dual-path coolant circulation and emergency warm nitrogen purge system"
  - node_2:
      trigger: "Condensate accumulation exceeding 85% volumetric capacity with viscosity &gt;500 cP"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Capacitance-based level sensing with automated drain valve actuation at 70% capacity, plus reinforced rib structure at 45° helix angle"
bom_nodes:
  inlet-port:
    type: "component"
    urn: "URN:CNFX:ME:INLET_PORT"
    interface_type: "physical-logic-coupled"
  outlet-port:
    type: "component"
    urn: "URN:CNFX:ME:OUTLET_PORT"
    interface_type: "physical-logic-coupled"
  drain-valve-connection:
    type: "component"
    urn: "URN:CNFX:ME:DRAIN_VALVE_CONNECTION"
    interface_type: "physical-logic-coupled"
  cooling-jacketcoil-mounting:
    type: "component"
    urn: "URN:CNFX:ME:COOLING_JACKETCOIL_MOUNTING"
    interface_type: "physical-logic-coupled"
  insulation-layer:
    type: "component"
    urn: "URN:CNFX:ME:INSULATION_LAYER"
    interface_type: "physical-logic-coupled"
manufacturing_compliance:
  - standard: "ISO 5208:2015 (INDUSTRIAL VALVES - PRESSURE TESTING OF VALVES)"
    scope: "Verified Engineering Specification"
url: "https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/product/trap-body.md"
on_chain_sovereignty:
  contract_standard: "ERC-721-Industrial"
  metadata_hash: "54f2f24d9797bd4f5642e13f7acda37a119521c0137ed9b1c01a15cf946fb2bf"
  royalty_logic: "IPFS-CID-REQUIRED"
  mint_status: "logic-verified-ready"
version: "3.3.4-EXTREME-SOVEREIGN-WEB3"
---

# Industrial Specification: Trap Body

## 1. Technical Definition
The main structural housing of a cold trap/condenser that contains the cooling mechanism and collects condensed substances.

## 2. Engineering Reasoning & Causal Matrix
> **Operational Intelligence**: Designed for **0.1-10 bar absolute pressure, -196°C to 150°C temperature**. Failure boundary: **15 bar internal pressure causing yield stress of 316L stainless steel (205 MPa) at -50°C, or thermal shock exceeding 200°C/min temperature gradient**, Mechanism: **Brittle fracture due to ductile-to-brittle transition temperature of austenitic stainless steel below -100°C, combined with stress concentration at weld joints exceeding material's fracture toughness (200 MPa·m¹/²)**.

### 2.1 Analytical Physics Model
Governed by the **Thin-Wall Pressure Vessel Stress Analysis**:

> **Primary Equation**: $\sigma_h = \frac{P \cdot D}{2t}$  
> **Engineering Impact**: Determines the hoop stress boundary to prevent rupture.

| Symbol | Variable Definition | Localized Reference |
| :--- | :--- | :--- |
| P | Internal Pressure | Engineering Constant |
| D | Diameter | Engineering Constant |
| t | Wall Thickness | Engineering Constant |

### 2.2 FMEA (Failure Mode & Effects Analysis)
| Event Trigger | Severity | Failure Mode | Mitigation Strategy |
| :--- | :--- | :--- | :--- |
| Coolant flow interruption for 120 seconds at -80°C operating temperature | 8 | Thermal stress cracking at brazed copper-aluminum interfaces due to coefficient of thermal expansion mismatch (17.0 vs 23.1 μm/m·°C) | Redundant thermocouple array with PID-controlled dual-path coolant circulation and emergency warm nitrogen purge system |
| Condensate accumulation exceeding 85% volumetric capacity with viscosity &gt;500 cP | 8 | Hydrostatic pressure-induced deformation exceeding 0.2% strain limit of cold-worked 316L, causing seal flange misalignment &gt;0.05 mm | Capacitance-based level sensing with automated drain valve actuation at 70% capacity, plus reinforced rib structure at 45° helix angle |

## 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**: **Refrigeration Compressor**, **Vacuum Pump**, **Temperature Control System**  
**Downstream Applications**: Pharmaceutical Intermediates, Semiconductor Chemicals, Specialty Solvents  

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

### Q: What materials are available for the trap body?
**A**: The trap body is available in stainless steel for corrosion resistance, carbon steel for durability, and glass for chemical compatibility and visibility.

### Q: What components are included in the trap body assembly?
**A**: The trap body includes inlet and outlet ports, drain valve connection, cooling jacket/coil mounting points, and insulation layer for thermal efficiency.

### Q: How does the trap body function in a cold trap system?
**A**: The trap body serves as the main housing that contains the cooling mechanism and collects condensed substances from vapor streams in industrial processes.

## 6. Manufacturing Compliance
- ISO 5208:2015 (INDUSTRIAL VALVES - PRESSURE TESTING OF VALVES)

---
### 🛠️ Engineering Resource Access
🔗 **[Full Specification: Trap Body](https://cnfx.com/industry/machinery-and-equipment-manufacturing/product/trap-body)**

### 🌐 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**: TRAP_BODY | **Authority**: CNFX-2026-ST-001 | **Fingerprint**: f2283b8e
