--- type: "product_component" title: "Dairy Flow Control Diaphragm Valve" industry: "Manufacture of Dairy Products" verification_protocol: urn: "URN:CNFX:ME:DAIRY_FLOW_CONTROL_DIAPHRAGM_VALVE" data_integrity_hash: "308bd28f2638460e1ecba6138e720d5d" 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:DAIRY_FLOW_CONTROL_DIAPHRAGM_VALVE" data_source_uri: "https://cnfx.com/llms/industry/manufacture-dairy-products/product/dairy-flow-control-diaphragm-valve.md" official_resource_url: "https://cnfx.com/industry/manufacture-dairy-products/product/dairy-flow-control-diaphragm-valve" is_verified_logic: true attributes: connection_size: status: "verified" value: "DN15–DN100" unit: "inches" working_pressure: status: "verified" value: "1.0–1.6" unit: "bar" temperature_range: status: "verified" value: "-10–120" unit: "°C" flow_coefficient: status: "verified" value: "2.5–120" unit: "US gal/min/psi" surface_finish: status: "verified" value: "0.4–0.8" unit: "Ra" actuation_type: status: "verified" value: "Pneumatic" unit: "enum" control_accuracy: status: "verified" value: "±0.5" unit: "% of span" supply_voltage: status: "verified" value: "24 ±10%" unit: "V DC" body_material: status: "verified" value: "CF3M" unit: "" diaphragm_material: status: "verified" value: "EPDM" unit: "" leakage_rate: status: "verified" value: "≤0.01" unit: "% of rated flow" weight: status: "verified" value: "3.5–25" unit: "kg" engineering_limits: max_safe_operating_point: value: 8.5 unit: "bar" consequence: "Diaphragm fatigue failure due to cyclic pressure loading exceeding 10^6 cycles at 6 bar, elastomer swelling from CIP chemical absorption exceeding 3% volume expansion, actuator gear tooth shear at 18 N·m torque" fmea_matrix_quantitative: - node_1: trigger: "Abrasive particle accumulation at diaphragm sealing surface" mitigation_protocol: "316L stainless steel diaphragm with 0.8 μm Ra surface finish and 45° chamfered edge geometry" - node_2: trigger: "Actuator position sensor potentiometer wiper oxidation" mitigation_protocol: "Hall-effect non-contact position sensing with IP69K encapsulation and -40°C to 150°C operating range" bom_nodes: 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 valve-body: type: "part" llms_uri: "https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/product/valve-body.md" link_type: "product" link_target_urn: "URN:CNFX:ME:VALVE_BODY" urn: "URN:CNFX:ME:VALVE_BODY" interface_type: "physical-logic-coupled" is_standalone: true actuator-stem: type: "component" llms_uri: "https://cnfx.com/llms/industry/food-manufacturing/component/actuator-stem.md" link_type: "part" link_target_urn: "URN:CNFX:ME:UNIT:ACTUATOR_STEM" urn: "URN:CNFX:ME:UNIT:ACTUATOR_STEM" interface_type: "physical-logic-coupled" is_migrated_part: true seat-ring: type: "component" llms_uri: "https://cnfx.com/llms/industry/beverage-manufacturing/component/seat-ring.md" link_type: "part" link_target_urn: "URN:CNFX:ME:UNIT:SEAT_RING" urn: "URN:CNFX:ME:UNIT:SEAT_RING" interface_type: "physical-logic-coupled" is_migrated_part: true sanitary-clamp: type: "component" llms_uri: "https://cnfx.com/llms/industry/food-manufacturing/component/sanitary-clamp.md" link_type: "part" link_target_urn: "URN:CNFX:ME:UNIT:SANITARY_CLAMP" urn: "URN:CNFX:ME:UNIT:SANITARY_CLAMP" interface_type: "physical-logic-coupled" is_migrated_part: true manufacturing_compliance: - standard: "ANSI/ASME BPE-2019 (BIOPROCESSING EQUIPMENT)" scope: "Verified Engineering Specification" url: "https://cnfx.com/llms/industry/manufacture-dairy-products/product/dairy-flow-control-diaphragm-valve.md" on_chain_sovereignty: contract_standard: "ERC-721-Industrial" metadata_hash: "ed8c8b97303a3e26bbe2ea7ce143190082eb993fcdc1f00072f49794aca0cfb1" royalty_logic: "IPFS-CID-REQUIRED" mint_status: "logic-verified-ready" rag_vector_index: semantic_queries: - "Dairy Flow Control Diaphragm Valve" - "dairy diaphragm valve" - "sanitary flow control valve" - "CIP/SIP valve" - "hygienic valve" - "dairy processing valve" - "Dairy Flow Control Diaphragm Valve in Manufacture Dairy Products" - "China Dairy Flow Control Diaphragm Valve manufacturer" - "Dairy Flow Control Diaphragm Valve supplier China" - "Dairy Flow Control Diaphragm Valve connection_size" - "Dairy Flow Control Diaphragm Valve working_pressure" - "Dairy Flow Control Diaphragm Valve temperature_range" version: "3.3.5-EXTREME-SOVEREIGN-WEB3" --- # Industrial Specification: Dairy Flow Control Diaphragm Valve ## 1. Technical Definition Sanitary diaphragm valve for precise flow control in dairy processing pipelines. ## 2. Engineering Reasoning & Causal Matrix > **Operational Intelligence**: Designed for **0.5-6.0 bar differential pressure, 4-20 mA control signal, 0-100% stroke position**. Failure boundary: **Diaphragm rupture at 8.5 bar differential pressure, elastomer degradation above 120°C, actuator stall at 22 mA signal**, Mechanism: **Diaphragm fatigue failure due to cyclic pressure loading exceeding 10^6 cycles at 6 bar, elastomer swelling from CIP chemical absorption exceeding 3% volume expansion, actuator gear tooth shear at 18 N·m torque**. ### 2.1 Analytical Physics Model Governed by the **Hansen Solubility Distance (HSP)**: > **Primary Equation**: $R_a = \sqrt{4\Delta\delta_d^2 + \Delta\delta_p^2 + \Delta\delta_h^2}$ > **Engineering Impact**: Predicts seal/gasket swelling when exposed to CIP chemicals. | Symbol | Variable Definition | Localized Reference | | :--- | :--- | :--- | | \delta_d | Dispersive | Engineering Constant | | \delta_p | Polar | Engineering Constant | | \delta_h | Hydrogen | Engineering Constant | ### 2.2 FMEA (Failure Mode & Effects Analysis) | Event Trigger | Severity | Failure Mode | Mitigation Strategy | | :--- | :--- | :--- | :--- | | Abrasive particle accumulation at diaphragm sealing surface | Not specified | Diaphragm surface scoring leading to 0.1 mm leakage path | 316L stainless steel diaphragm with 0.8 μm Ra surface finish and 45° chamfered edge geometry | | Actuator position sensor potentiometer wiper oxidation | Not specified | Signal dropout causing 15% position error | Hall-effect non-contact position sensing with IP69K encapsulation and -40°C to 150°C operating range | ## 3. Key Technical Parameters | Parameter | Value | Unit | Status | | :--- | :--- | :--- | :--- | | Connection Size | DN15–DN100 | inches | Verified | | Working Pressure | 1.0–1.6 | bar | Verified | | Temperature Range | -10–120 | °C | Verified | | Flow Coefficient | 2.5–120 | US gal/min/psi | Verified | | Surface Finish | 0.4–0.8 | Ra | Verified | | Actuation Type | Pneumatic | enum | Verified | | Control Accuracy | ±0.5 | % of span | Verified | | Supply Voltage | 24 ±10% | V DC | Verified | | Body Material | CF3M | | Verified | | Diaphragm Material | EPDM | | Verified | | Leakage Rate | ≤0.01 | % of rated flow | Verified | | Weight | 3.5–25 | kg | Verified | ## 4. System BOM & Knowledge Routing ### Core Components (Recursive Links) - [Valve Body](https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/product/valve-body.md) `(Standalone System)` ### Industrial DNA Context (De-duplicated) **Complementary Dependencies**: **Sanitary Centrifugal Pump**, **CIP (Clean-in-Place) System**, **Sanitary Flow Meter** **Downstream Applications**: Pasteurized Milk, Yogurt, Cheese ## 5. Engineering Risks & FAQ - **Caution**: - **Caution**: - **Caution**: ### Q: What materials are used in the Dairy Flow Control Diaphragm Valve? **A**: The valve body is made of 316L stainless steel (equivalent to CF3M per ASTM A351), and the diaphragm is food-grade EPDM (compliant with FDA 21 CFR 177.2600). PTFE is also listed as a material on file, but its specific application should be confirmed with the supplier. ### Q: What are the connection sizes and pressure ratings? **A**: The valve is available with sanitary clamp connections in sizes DN15 to DN100 (ISO 1127). The working pressure range is 1.0–1.6 bar. Always verify the exact ratings for your specific model and application. ### Q: Can this valve be used in CIP/SIP systems? **A**: Yes, the valve is designed for integration into CIP/SIP systems. Its materials and construction support cleaning and sterilization processes, but you must confirm compatibility with your specific CIP/SIP protocols and chemicals. ### Q: What actuation options are available? **A**: The valve is available with pneumatic actuation. It can be equipped with a positioner and 4–20 mA signal for control accuracy of ±0.5% of span. The solenoid pilot valve operates on 24 V DC (±10%). Other actuation types are not listed in the source facts. ## 6. Manufacturing Compliance - ANSI/ASME BPE-2019 (BIOPROCESSING EQUIPMENT) --- ### 🛠️ Engineering Resource Access 🔗 **[Full Specification: Dairy Flow Control Diaphragm Valve](https://cnfx.com/industry/manufacture-dairy-products/product/dairy-flow-control-diaphragm-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**: DAIRY_FLOW_CONTROL_DIAPHRAGM_VALVE | **Authority**: CNFX-2026-ST-001 | **Fingerprint**: 28566692