---
title: "Discharge Gate/Valve"
industry: "Machinery and Equipment Manufacturing"
verification_protocol:
  urn: "URN:CNFX:ME:DISCHARGE_GATEVALVE"
  data_integrity_hash: "747c3840db1ea5fd07b240adb32831f4"
  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:DISCHARGE_GATEVALVE"
  data_source_uri: "https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/product/discharge-gatevalve.md"
  official_resource_url: "https://cnfx.com/industry/machinery-and-equipment-manufacturing/product/discharge-gatevalve"
  is_verified_logic: true
attributes:
  spec:
    status: "config-dependent"
    typical_range: "0.1-6.0 bar differential pressure, -40°C to 150°C temperature"
    unit: "mm"
engineering_limits:
  max_safe_operating_point:
    value: 250
    unit: "MPa"
    consequence: "Abrasive wear from silica particles (Mohs hardness 7) exceeding 0.5 m/s impact velocity causes material erosion; thermal cycling induces 0.002 mm/mm thermal expansion mismatch between 316L stainless steel (17.3 μm/m·K) and PTFE seals (135 μm/m·K)"
fmea_matrix_quantitative:
  - node_1:
      trigger: "Hopper overpressure exceeding 8 bar causing 350 MPa hoop stress"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Pressure relief valve set at 7 bar with 0.5 bar hysteresis, 12 mm thick AISI 4140 steel plate heat-treated to 45 HRC"
  - node_2:
      trigger: "Electrostatic discharge of 15 kV accumulating on polymer seals"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Faraday cage shielding with 0.5 mm aluminum enclosure, 1 MΩ grounding path resistance, optical encoder isolation"
bom_nodes:
  gate-platevalve-body:
    type: "component"
    urn: "URN:CNFX:ME:GATE_PLATEVALVE_BODY"
    interface_type: "physical-logic-coupled"
  sealgasket:
    type: "component"
    urn: "URN:CNFX:ME:SEALGASKET"
    interface_type: "physical-logic-coupled"
  actuator:
    type: "part"
    urn: "URN:CNFX:ME:ACTUATOR"
    interface_type: "physical-logic-coupled"
  mounting-flange:
    type: "component"
    urn: "URN:CNFX:ME:MOUNTING_FLANGE"
    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/discharge-gatevalve.md"
on_chain_sovereignty:
  contract_standard: "ERC-721-Industrial"
  metadata_hash: "180ff144ff42bde74b6b5596b070fc2ebd499e544c6034e4ac13377b7c45f77e"
  royalty_logic: "IPFS-CID-REQUIRED"
  mint_status: "logic-verified-ready"
version: "3.3.4-EXTREME-SOVEREIGN-WEB3"
---

# Industrial Specification: Discharge Gate/Valve

## 1. Technical Definition
A flow control device at the outlet of a loading hopper that regulates the discharge of bulk materials.

## 2. Engineering Reasoning & Causal Matrix
> **Operational Intelligence**: Designed for **0.1-6.0 bar differential pressure, -40°C to 150°C temperature**. Failure boundary: **Material yield strength exceeded at 250 MPa stress, seal failure at 0.01 mm wear clearance**, Mechanism: **Abrasive wear from silica particles (Mohs hardness 7) exceeding 0.5 m/s impact velocity causes material erosion; thermal cycling induces 0.002 mm/mm thermal expansion mismatch between 316L stainless steel (17.3 μm/m·K) and PTFE seals (135 μm/m·K)**.

### 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 |
| :--- | :--- | :--- | :--- |
| Hopper overpressure exceeding 8 bar causing 350 MPa hoop stress | 8 | Gate plate permanent deformation exceeding 2 mm deflection | Pressure relief valve set at 7 bar with 0.5 bar hysteresis, 12 mm thick AISI 4140 steel plate heat-treated to 45 HRC |
| Electrostatic discharge of 15 kV accumulating on polymer seals | 8 | Actuator position sensor signal corruption with 50 mV noise injection | Faraday cage shielding with 0.5 mm aluminum enclosure, 1 MΩ grounding path resistance, optical encoder isolation |

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

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

### Industrial DNA Context (De-duplicated)
**Complementary Dependencies**: **Bulk Material Hopper**, **Pneumatic Actuator System**, **Programmable Logic Controller (PLC)**  
**Downstream Applications**: Cement, Animal Feed, Plastic Pellets  

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

### Q: What materials are available for the discharge gate/valve?
**A**: Our discharge gates/valves are available in stainless steel, carbon steel, and cast iron to suit different industrial requirements and material compatibility.

### Q: How does the discharge gate regulate bulk material flow?
**A**: The gate plate/valve body, controlled by an actuator, opens or closes to precisely regulate material discharge from loading hoppers, ensuring controlled flow rates.

### Q: What components are included in the discharge gate assembly?
**A**: Each unit includes an actuator, gate plate/valve body, mounting flange, and seal/gasket for complete installation and reliable operation.

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

---
### 🛠️ Engineering Resource Access
🔗 **[Full Specification: Discharge Gate/Valve](https://cnfx.com/industry/machinery-and-equipment-manufacturing/product/discharge-gatevalve)**

### 🌐 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**: DISCHARGE_GATEVALVE | **Authority**: CNFX-2026-ST-001 | **Fingerprint**: 7dffce39
