---
title: "Impeller/Piston Assembly"
industry: "Machinery and Equipment Manufacturing"
verification_protocol:
  urn: "URN:CNFX:ME:IMPELLERPISTON_ASSEMBLY"
  data_integrity_hash: "fb0e90567d6028d9ca3b76b4aa80359a"
  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:IMPELLERPISTON_ASSEMBLY"
  data_source_uri: "https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/product/impellerpiston-assembly.md"
  official_resource_url: "https://cnfx.com/industry/machinery-and-equipment-manufacturing/product/impellerpiston-assembly"
  is_verified_logic: true
attributes:
  spec:
    status: "config-dependent"
    typical_range: "15-250 bar"
    unit: "mm"
engineering_limits:
  max_safe_operating_point:
    value: 275
    unit: "bar"
    consequence: "Cavitation-induced erosion at NPSH &lt; 2.5 m, combined with Von Mises stress exceeding 450 MPa yield strength of 17-4PH stainless steel at seal interface"
fmea_matrix_quantitative:
  - node_1:
      trigger: "Fluid contamination with 50+ μm abrasive particles exceeding 100 ppm concentration"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Install 10 μm absolute filtration with differential pressure monitoring at 0.5 bar threshold"
  - node_2:
      trigger: "Thermal cycling between 20°C and 180°C at &gt;5 cycles/hour"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Implement controlled ramp-up/down at 2°C/second and use Invar 36 alloy for critical interfaces"
bom_nodes:
  impeller-blade:
    type: "component"
    urn: "URN:CNFX:ME:IMPELLER_BLADE"
    interface_type: "physical-logic-coupled"
  piston-head:
    type: "component"
    urn: "URN:CNFX:ME:PISTON_HEAD"
    interface_type: "physical-logic-coupled"
  drive-shaft:
    type: "component"
    urn: "URN:CNFX:ME:DRIVE_SHAFT"
    interface_type: "physical-logic-coupled"
  sealing-rings:
    type: "component"
    urn: "URN:CNFX:ME:SEALING_RINGS"
    interface_type: "physical-logic-coupled"
manufacturing_compliance:
  - standard: "ISO 1940-1:2003 (BALANCE QUALITY REQUIREMENTS FOR ROTORS)"
    scope: "Verified Engineering Specification"
  - standard: "ANSI/ASME B46.1-2019 (SURFACE TEXTURE)"
    scope: "Verified Engineering Specification"
  - standard: "DIN 1940-1 (BALANCING OF ROTATING RIGID BODIES)"
    scope: "Verified Engineering Specification"
url: "https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/product/impellerpiston-assembly.md"
on_chain_sovereignty:
  contract_standard: "ERC-721-Industrial"
  metadata_hash: "fa40df8d16953d73ed892d84016dd863374776350c115e0b3788d57f7fbcb84c"
  royalty_logic: "IPFS-CID-REQUIRED"
  mint_status: "logic-verified-ready"
version: "3.3.4-EXTREME-SOVEREIGN-WEB3"
---

# Industrial Specification: Impeller/Piston Assembly

## 1. Technical Definition
A critical assembly combining impeller and piston functions for fluid pressurization in high-pressure pumps

## 2. Engineering Reasoning & Causal Matrix
> **Operational Intelligence**: Designed for **15-250 bar**. Failure boundary: **275 bar sustained pressure or 300 bar peak transient pressure**, Mechanism: **Cavitation-induced erosion at NPSH &lt; 2.5 m, combined with Von Mises stress exceeding 450 MPa yield strength of 17-4PH stainless steel at seal interface**.

### 2.1 Analytical Physics Model
Governed by the **L10 Bearing Life & Fatigue Model**:

> **Primary Equation**: $L_{10} = (\frac{C}{P})^p$  
> **Engineering Impact**: Predicts mechanical lifecycle before component fatigue.

| Symbol | Variable Definition | Localized Reference |
| :--- | :--- | :--- |
| C | Dynamic Load Rating | Engineering Constant |
| P | Equivalent Dynamic Load | Engineering Constant |

### 2.2 FMEA (Failure Mode & Effects Analysis)
| Event Trigger | Severity | Failure Mode | Mitigation Strategy |
| :--- | :--- | :--- | :--- |
| Fluid contamination with 50+ μm abrasive particles exceeding 100 ppm concentration | 8 | Radial seal wear exceeding 0.1 mm clearance causing 15% efficiency loss | Install 10 μm absolute filtration with differential pressure monitoring at 0.5 bar threshold |
| Thermal cycling between 20°C and 180°C at &gt;5 cycles/hour | 8 | Differential thermal expansion creating 0.05 mm misalignment at impeller-piston interface | Implement controlled ramp-up/down at 2°C/second and use Invar 36 alloy for critical interfaces |

## 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**: **High-Pressure Hydraulic Power Unit**, **Coolant Circulation System**, **Precision Alignment Fixture**  
**Downstream Applications**: Industrial Pressure Washers, Water Jet Cutting Systems, High-Pressure Cleaning Equipment  

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

### Q: What materials are used in this impeller/piston assembly?
**A**: This assembly is constructed from stainless steel, high-strength alloys, and features ceramic coatings for enhanced durability and corrosion resistance in demanding fluid pressurization applications.

### Q: What are the main components in the assembly's BOM?
**A**: The bill of materials includes a drive shaft, impeller blade, piston head, and sealing rings, all precision-engineered to work together for efficient fluid pressurization in high-pressure pumps.

### Q: What industries typically use this impeller/piston assembly?
**A**: This assembly is designed for machinery and equipment manufacturing, particularly in applications requiring reliable fluid pressurization such as industrial pumps, hydraulic systems, and processing equipment.

## 6. Manufacturing Compliance
- ISO 1940-1:2003 (BALANCE QUALITY REQUIREMENTS FOR ROTORS)
- ANSI/ASME B46.1-2019 (SURFACE TEXTURE)
- DIN 1940-1 (BALANCING OF ROTATING RIGID BODIES)

---
### 🛠️ Engineering Resource Access
🔗 **[Full Specification: Impeller/Piston Assembly](https://cnfx.com/industry/machinery-and-equipment-manufacturing/product/impellerpiston-assembly)**

### 🌐 Knowledge Graph Topology
> **Node Status**: Verified Engineering Spec
> **Connectivity**: Linked to **4** standalone system nodes
> **Global Context**: Part of a 5,814 node industrial cluster within the CNFX Graph

> **Reference ID**: IMPELLERPISTON_ASSEMBLY | **Authority**: CNFX-2026-ST-001 | **Fingerprint**: 494637b2
