Editorial Technical Reference

Dairy Flow Control Diaphragm Valve

This page explains how Dairy Flow Control Diaphragm Valve is classified within Manufacture of Dairy Products. Technical values and manufacturer relationships are research references; confirm the current specification and supplier evidence for each order.

Technical Definition & Core Assembly

Sanitary diaphragm valve for precise flow control in dairy processing pipelines.

Representative product image. Confirm appearance and specifications with the manufacturer.

Product Specifications

Technical details and manufacturing context for Dairy Flow Control Diaphragm Valve

Definition
The Dairy Flow Control Diaphragm Valve is a hygienic component designed for use in dairy processing pipelines where precise flow control and contamination prevention are critical. It is intended for integration into Clean-in-Place (CIP) and Sterilize-in-Place (SIP) systems, providing reliable shut-off and throttling capabilities for milk, cream, whey, and other dairy fluids. As a B2B supply chain component, it serves dairy equipment manufacturers and plant maintenance operations, supporting product quality and process efficiency.

Constructed with a 316L stainless steel body (equivalent to CF3M per ASTM A351) and a food-grade EPDM diaphragm (compliant with FDA 21 CFR 177.2600), the valve ensures compatibility with dairy media. The diaphragm isolates the fluid from the actuator mechanism, preventing contamination and facilitating hygienic operation. The valve is available with sanitary clamp connections in sizes DN15 to DN100 (ISO 1127), with a working pressure range of 1.0–1.6 bar and an operating temperature range of -10°C to 120°C. The flow coefficient (Cv) ranges from 2.5 to 120 US gal/min/psi, and the internal surface finish is Ra 0.4–0.8 (ISO 2037) for cleanability.

Actuation is pneumatic, with a control accuracy of ±0.5% of span when equipped with a positioner and 4–20 mA signal. The solenoid pilot valve operates on 24 V DC (±10%). The valve meets Class A seat leakage per ISO 5208, with a leakage rate of ≤0.01% of rated flow. Weight varies from 3.5 to 25 kg depending on size and actuator.

All listed parameters are reference ranges that must be verified for the specific model and application with the legal manufacturer or supplier. Standards cited are procurement references and do not imply certification or compliance of any specific product. Always confirm model-specific values and standards before purchase or installation.
Working Principle
The valve operates by mechanically actuating a flexible diaphragm, typically made of food-grade EPDM, to press against a weir or seat within the valve body. When the actuator (pneumatic in this case) moves the diaphragm, it either seals against the seat to stop flow or lifts to allow flow. The diaphragm isolates the fluid from the valve's internal mechanism, preventing contamination and ensuring hygienic operation. Throttling is achieved by partially opening the valve, allowing precise control of flow rate. The design is suitable for CIP/SIP systems, as the diaphragm and body materials withstand cleaning and sterilization temperatures.
Common Materials
316L Stainless Steel, Food-Grade EPDM, PTFE
Technical Parameters
ParameterTypical rangeNotes & selection driver
Connection SizeRequiredDN15–DN100 inchesNominal pipe size for sanitary clamp connectionsISO 1127
Working PressureRequired1.0–1.6 barMaximum pressure rating for dairy fluid applicationsISO 5208
Temperature RangeRequired-10–120 °COperating temperature range for dairy processing
Flow CoefficientRequired2.5–120 US gal/min/psiValve flow capacity coefficientISO 5208
Surface FinishRequired0.4–0.8 RaInternal surface roughness for cleanabilityISO 2037
Actuation TypePneumatic enumManual, pneumatic, or electric actuation method
Control Accuracy±0.5 % of spanWith positioner and 4–20 mA signal
Supply Voltage24 ±10% V DCFor solenoid pilot valve
Body MaterialCF3MEquivalent to 316L stainless steelASTM A351
Diaphragm MaterialEPDMFood-grade, complies with FDAFDA 21 CFR 177.2600
Leakage Rate≤0.01 % of rated flowClass A seat leakageISO 5208
Weight3.5–25 kgDepending on size and actuator

Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.

Components / BOM
  • Diaphragm Part
    Creates flexible seal between fluid and valve mechanism
    Material: Food-Grade EPDM or PTFE
  • Valve Body
    Main structural housing with sanitary connections
    Material: 316L Stainless Steel
  • Actuator Stem Part
    Transmits mechanical force to diaphragm
    Material: 316 Stainless Steel
  • Seat Ring Part
    Provides sealing surface for diaphragm contact
    Material: 316L Stainless Steel
  • Sanitary Clamp Part
    Quick-connect fitting for pipeline integration
    Material: 304 Stainless Steel

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Dairy Flow Control Diaphragm Valve.

Industrial Ecosystem & Supply Chain Structure

Complementary Systems
Downstream Applications
Specialized Tooling

Application Fit & Sizing Matrix

Operational Limits
pressure: 0 to 10 bar (g)
flow rate: Up to 50 m³/h (varies with size)
temperature: -10°C to 150°C
slurry concentration: Up to 40% solids by weight
Media Compatibility
✓ Milk and dairy products ✓ CIP (Clean-in-Place) fluids ✓ Food-grade gases
Unsuitable: Abrasive slurries with hard particles >500 microns
Sizing Data Required
  • Required flow rate (m³/h)
  • Line pressure (bar)
  • Fluid viscosity (cP)

Reliability & Engineering Risk Analysis

Failure Mode & Root Cause
Diaphragm fatigue cracking
Cause: Repeated flexing cycles from frequent valve actuation in dairy processing lines, combined with chemical exposure to cleaning agents (CIP chemicals) that degrade elastomer materials over time.
Seat contamination and leakage
Cause: Buildup of dairy residues (proteins, fats, minerals) on valve seat surfaces, creating imperfect sealing and allowing product cross-contamination or flow control inaccuracies.
Maintenance Indicators
  • Visible product leakage around valve body or through weep holes indicating diaphragm failure
  • Audible hissing or irregular flow sounds during operation suggesting seat contamination or partial blockage
Engineering Tips
  • Implement regular diaphragm inspection and replacement schedules based on actual cycle counts rather than time intervals, using dairy-compatible elastomers (EPDM or FDA-approved materials) resistant to both product and cleaning chemicals.
  • Optimize Clean-in-Place (CIP) procedures with verified temperature, chemical concentration, and flow velocity parameters to ensure complete removal of dairy residues without accelerating material degradation.

Indicative industry ranges for design and RFQ preparation. Confirm the exact figures and applicable standard with the manufacturer before specifying.

Compliance & Manufacturing Standards

Applicable Standards
ANSI/ASME BPE-2019 (Bioprocessing Equipment) DIN 11866-2 (Fittings for the Food Industry)

Quoted from the published standard.

Manufacturing Precision
  • Bore Diameter: +/-0.05mm
  • Surface Roughness: Ra ≤ 0.8µm
Quality Inspection
  • Hydrostatic Pressure Test (1.5x working pressure)
  • Material Composition Verification (PMI - Positive Material Identification)

Manufacturers of Dairy Flow Control Diaphragm Valve

7 companies list this product among what they make. Company figures are quoted from each company's own website; every card states where the relationship came from.

China Sanitary Valve
Zhejiang, CN
Founded 200251~100 staff5,000-10,000 square meters
ISO9001 ASME CE Test Report
Listed on the company's own website · profile compiled by CNFX from public sources
CJan Fluid Technology Co., Ltd.
Shanghai, CN
ISO 9001:2015 IATF 16949
Listed on the company's own website · profile compiled by CNFX from public sources
Jianen Sanitary
Wenzhou, Zhejiang, CN
Founded 2009
3A CE ISO9001 SGS
Listed on the company's own website · profile compiled by CNFX from public sources
Sunthai Extractor
Zhejiang, CN
200-500 staff20,000 m²
ISO 9001:2015
Listed on the company's own website · profile compiled by CNFX from public sources
Wenzhou Deyi Machinery
Wenzhou, Zhejiang, CN
Listed on the company's own website · profile compiled by CNFX from public sources
AVM Extraordinary Intelligent Control (Zhejiang) Co., Ltd.
Zhejiang, CN
Listed on the company's own website · profile compiled by CNFX from public sources
HEYUE Valve Actuator
Zhejiang, CN
Also makes: Butterfly Valve, Ball Valve, Pneumatic Actuator and 7 more
Listed on the company's own website · profile compiled by CNFX from public sources

Manufacturer listings support early research and capability understanding. They are not certification, ranking, or transaction guarantees.

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Frequently Asked Questions

What materials are used in the Dairy Flow Control Diaphragm Valve?

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.

What are the connection sizes and pressure ratings?

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.

Can this valve be used in CIP/SIP systems?

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.

What actuation options are available?

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.

Data Basis

Editorial classification, named public sources where available, and source-reviewed manufacturer records.

Preliminary Technical Classification
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