---
type: "product_component"
title: "Sanitary Pressure Relief Valve"
industry: "Alcoholic Beverages Manufacturing"
verification_protocol:
  urn: "URN:CNFX:ME:SANITARY_PRESSURE_RELIEF_VALVE"
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source_identity:
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  index_version: "2026.Q1-Universal"
  authority_id: "URN:CNFX:ME:SANITARY_PRESSURE_RELIEF_VALVE"
  data_source_uri: "https://cnfx.com/llms/industry/alcoholic-beverages-manufacturing/product/sanitary-pressure-relief-valve.md"
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attributes:
  set_pressure:
    status: "verified"
    value: "0.1–1.6"
    unit: "bar"
  flow_capacity:
    status: "verified"
    value: "500–5000"
    unit: "m³/h"
  operating_temperature:
    status: "verified"
    value: "-10–150"
    unit: "°C"
  connection_size:
    status: "verified"
    value: "DN25–DN100"
    unit: "inches"
  surface_finish:
    status: "verified"
    value: "Ra ≤ 0.8"
    unit: "Ra"
  spring_range:
    status: "verified"
    value: "0.1–1.6"
    unit: "bar"
  body_material:
    status: "verified"
    value: "316L"
    unit: ""
  seal_material:
    status: "verified"
    value: "EPDM/PTFE"
    unit: ""
  leakage_rate:
    status: "verified"
    value: "≤0.05"
    unit: "% of set pressure"
  reseating_pressure:
    status: "verified"
    value: "≥90"
    unit: "% of set pressure"
  weight:
    status: "verified"
    value: "2.5–15"
    unit: "kg"
engineering_limits:
  max_safe_operating_point:
    value: 18.5
    unit: "bar"
    consequence: "Spring material yield point exceeded due to overpressure, causing permanent deformation and loss of sealing force"
fmea_matrix_quantitative:
  - node_1:
      trigger: "Corrosive fluid pH below 2.5"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "PTFE-coated diaphragm with 0.5 mm thickness"
  - node_2:
      trigger: "Particulate contamination &gt; 50 μm in process fluid"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Upstream 40 μm absolute filtration with differential pressure monitoring"
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    type: "component"
    llms_uri: "https://cnfx.com/llms/industry/basic-metal-manufacturing/component/valve-body.md"
    link_type: "part"
    link_target_urn: "URN:CNFX:ME:UNIT:VALVE_BODY"
    urn: "URN:CNFX:ME:UNIT:VALVE_BODY"
    interface_type: "physical-logic-coupled"
    is_migrated_part: true
  diaphragm:
    type: "component"
    llms_uri: "https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/component/diaphragm.md"
    link_type: "part"
    link_target_urn: "URN:CNFX:ME:UNIT:DIAPHRAGM"
    urn: "URN:CNFX:ME:UNIT:DIAPHRAGM"
    interface_type: "physical-logic-coupled"
    is_migrated_part: true
  spring-assembly:
    type: "part"
    llms_uri: "https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/product/spring-assembly.md"
    link_type: "product"
    link_target_urn: "URN:CNFX:ME:SPRING_ASSEMBLY"
    urn: "URN:CNFX:ME:SPRING_ASSEMBLY"
    interface_type: "physical-logic-coupled"
    is_standalone: true
  seat-seal:
    type: "component"
    llms_uri: "https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/component/seat-seal.md"
    link_type: "part"
    link_target_urn: "URN:CNFX:ME:UNIT:SEAT_SEAL"
    urn: "URN:CNFX:ME:UNIT:SEAT_SEAL"
    interface_type: "physical-logic-coupled"
    is_migrated_part: true
  adjustment-screw:
    type: "component"
    llms_uri: "https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/component/adjustment-screw.md"
    link_type: "part"
    link_target_urn: "URN:CNFX:ME:UNIT:ADJUSTMENT_SCREW"
    urn: "URN:CNFX:ME:UNIT:ADJUSTMENT_SCREW"
    interface_type: "physical-logic-coupled"
    is_migrated_part: true
manufacturing_compliance:
url: "https://cnfx.com/llms/industry/alcoholic-beverages-manufacturing/product/sanitary-pressure-relief-valve.md"
on_chain_sovereignty:
  contract_standard: "ERC-721-Industrial"
  metadata_hash: "77ed34a2b061fdfcc969556ff579d45a83c95f982f5b79fff357677e4e4e5e56"
  royalty_logic: "IPFS-CID-REQUIRED"
  mint_status: "logic-verified-ready"
rag_vector_index:
  semantic_queries:
    - "Sanitary Pressure Relief Valve"
    - "sanitary pressure relief valve"
    - "hygienic safety valve"
    - "beverage processing"
    - "316L stainless steel"
    - "EPDM seals"
    - "PTFE seals"
    - "DIN EN ISO 4126-1"
    - "Sanitary Pressure Relief Valve in Alcoholic Beverages Manufacturing"
    - "China Sanitary Pressure Relief Valve manufacturer"
    - "Sanitary Pressure Relief Valve supplier China"
    - "Sanitary Pressure Relief Valve set_pressure"
    - "Sanitary Pressure Relief Valve flow_capacity"
    - "Sanitary Pressure Relief Valve operating_temperature"

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version: "3.3.5-EXTREME-SOVEREIGN-WEB3"
---

# Industrial Specification: Sanitary Pressure Relief Valve

## 1. Technical Definition
This sanitary pressure relief valve is a safety component designed for alcoholic beverage manufacturing environments where hygiene and pressure control are critical.

## 2. Engineering Reasoning & Causal Matrix
> **Operational Intelligence**: Designed for **0.5-16 bar**. Failure boundary: **18.5 bar (spring compression exceeds yield strength at 450 MPa)**, Mechanism: **Spring material yield point exceeded due to overpressure, causing permanent deformation and loss of sealing force**.

### 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 |
| :--- | :--- | :--- | :--- |
| Corrosive fluid pH below 2.5 | 8 | Stainless steel 316L diaphragm pitting corrosion | PTFE-coated diaphragm with 0.5 mm thickness |
| Particulate contamination &gt; 50 μm in process fluid | 8 | Seat surface scoring leading to 0.1 mm³/s leakage | Upstream 40 μm absolute filtration with differential pressure monitoring |

## 3. Key Technical Parameters
| Parameter | Value | Unit | Status |
| :--- | :--- | :--- | :--- |
| Set Pressure | 0.1–1.6 | bar | Verified |
| Flow Capacity | 500–5000 | m³/h | Verified |
| Operating Temperature | -10–150 | °C | Verified |
| Connection Size | DN25–DN100 | inches | Verified |
| Surface Finish | Ra ≤ 0.8 | Ra | Verified |
| Spring Range | 0.1–1.6 | bar | Verified |
| Body Material | 316L |  | Verified |
| Seal Material | EPDM/PTFE |  | Verified |
| Leakage Rate | ≤0.05 | % of set pressure | Verified |
| Reseating Pressure | ≥90 | % of set pressure | Verified |
| Weight | 2.5–15 | kg | Verified |

## 4. System BOM & Knowledge Routing
### Core Components (Recursive Links)
- [Spring Assembly](https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/product/spring-assembly.md) `(Standalone System)`

### Industrial DNA Context (De-duplicated)
**Complementary Dependencies**: **Sanitary Pressure Transmitter**, **Hygienic Process Pump**, **CIP (Clean-in-Place) System**  
**Downstream Applications**: Beer, Wine, Spirits  

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

### Q: What is the set pressure range of this valve?
**A**: The set pressure range is 0.1–1.6 bar, adjustable via the spring. The exact set point must be configured according to your system requirements and verified with the manufacturer.

### Q: What materials are used for the body and seals?
**A**: The body is made of 316L stainless steel (1.4404/1.4435) per ASTM A182. Seals are food-grade EPDM or PTFE, compliant with FDA 21 CFR 177.2600. These materials are suitable for hygienic applications.

### Q: What connection sizes are available?
**A**: Connection sizes range from DN25 to DN100, typically using Tri-Clamp sanitary fittings per DIN 11850. Ensure compatibility with your piping system.

### Q: What is the leakage rate and reseating pressure?
**A**: Leakage rate at 90% of set pressure is ≤0.05% of set pressure. Reseating pressure is ≥90% of set pressure, with blowdown ≤10%. These values ensure reliable sealing and minimal product loss.

## 6. Manufacturing Compliance

---
### 🛠️ Engineering Resource Access
🔗 **[Full Specification: Sanitary Pressure Relief Valve](https://cnfx.com/industry/alcoholic-beverages-manufacturing/product/sanitary-pressure-relief-valve)**

### 🌐 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**: SANITARY_PRESSURE_RELIEF_VALVE | **Authority**: CNFX-2026-ST-001 | **Fingerprint**: 13fdabb6
