Sanitary Discharge Valve for Food Mixing Systems

Product Specifications

Technical details and manufacturing context for Sanitary Discharge Valve

Definition

The Sanitary Discharge Valve is a component used in automated food ingredient blending and mixing systems. Its primary function is to control the release of mixed food products while maintaining strict sanitary standards to prevent contamination. The valve features smooth surfaces, a crevice-free design, and materials compliant with food safety regulations. It is available with a nominal diameter of 25–100 mm (ISO 1127), operating pressure of 1.0–1.6 MPa, and operating temperature of -10 to 150°C. The leakage rate is ≤0.01 ml/min (Class A seat leakage), and the surface roughness for product contact is ≤0.4 µm Ra (ISO 4287). The body material is stainless steel 316L (ASTM A351), and the seal material is food-grade EPDM (FDA 21 CFR 177.2600). The valve is pneumatically actuated, with a control signal of 24 V DC ±10% (IEC 61131-2) and an air supply pressure of 0.4–0.8 MPa (ISO 8573-1). It has an ingress protection rating of IP65 (IEC 60529) and weighs 5–20 kg depending on size and actuator. The valve operates via pneumatic actuation to open or close a flow path, using a diaphragm, ball, or butterfly mechanism that provides a clean, complete seal when closed and unrestricted flow when open. All wetted surfaces are designed for easy cleaning and sterilization. This product is listed in a neutral directory; it is not manufactured or sold by the directory. For specific applications, verify model-specific values and standards with the legal manufacturer or supplier.

Working Principle

The valve is actuated pneumatically, using compressed air to move the actuator, which opens or closes the valve. The closure mechanism—diaphragm, ball, or butterfly—ensures a tight seal when closed, preventing leakage and contamination. When open, the flow path is unrestricted, allowing the blended food ingredients to discharge smoothly. The valve's design includes smooth, crevice-free surfaces to minimize bacterial growth and facilitate cleaning. The actuator is controlled by a 24 V DC solenoid valve, which receives signals from the control system. The air supply pressure must be maintained within 0.4–0.8 MPa for reliable operation. The valve's sealing materials are food-grade, and the body is made of stainless steel 316L, ensuring corrosion resistance and compliance with food safety standards.

Common Materials

Stainless Steel 316L, Food-Grade EPDM, PTFE

Technical Parameters

Parameter	Typical range	Notes & selection driver
Nominal Diameter	25–100 mm	Matches mixing system outlet sizeISO 1127
Operating Temperature	-10–150 °C	Seal material limits upper range
Leakage Rate	≤0.01 ml/min	Class A seat leakageISO 5208
Surface Roughness (Product Contact)	≤0.4 µm Ra	Hygienic finish for food contactISO 4287
Body Material	316L	Corrosion-resistant stainless steelASTM A351
Seal Material	EPDM	Food-grade elastomerFDA 21 CFR 177.2600
Actuation Type	Pneumatic	Air-actuated for automated discharge
Control Signal	24 ±10% V DC	Solenoid valve supplyIEC 61131-2
Air Supply Pressure	0.4–0.8 MPa	Required for actuator operationISO 8573-1
Ingress Protection	IP65	Dust-tight and water-jet protectedIEC 60529
Weight	5–20 kg	Depends 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

Valve Body
Main structural housing containing flow path and connection points

Material: Stainless Steel 316L
Diaphragm/Seal Part
Flexible membrane that isolates process media from actuator while providing tight shut-off

Material: Food-Grade EPDM or PTFE
Actuator
Mechanism for opening and closing the valve (manual handle, pneumatic cylinder, or electric motor)

Material: Stainless Steel/Aluminum
Stem Part
Connects actuator to closure element for position control

Material: Stainless Steel 316
Solenoid Valve
The pilot solenoid that ports air to the actuator on a 24 V command.

Manufacturers of Sanitary Discharge Valve

Manufacturer profiles associated with Sanitary Discharge Valve.

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Frequently Asked Questions

What materials are used in this sanitary discharge valve?

The body is made of stainless steel 316L (ASTM A351), and the seal is food-grade EPDM (FDA 21 CFR 177.2600). PTFE is also listed as a material on file, but its specific application is not detailed. Always confirm material suitability for your product with the manufacturer.

What is the operating pressure range?

The operating pressure range is 1.0–1.6 MPa. Verify the exact pressure requirements for your system with the supplier.

How is the valve actuated?

The valve is pneumatically actuated, requiring an air supply pressure of 0.4–0.8 MPa (ISO 8573-1). The control signal is 24 V DC ±10% (IEC 61131-2) for the solenoid valve that directs air to the actuator.

What is the leakage rate and surface finish?

The leakage rate is ≤0.01 ml/min (Class A seat leakage). The surface roughness for product contact is ≤0.4 µm Ra (ISO 4287), which is a hygienic finish for food contact. These values are reference ranges; confirm with the manufacturer for your specific model.

Data Basis

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

Preliminary Technical Classification

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pressure:	0 to 10 bar (g)
flow rate:	Up to 50 m³/h
temperature:	-10°C to 120°C
slurry concentration:	Up to 60% solids by weight

Sanitary Discharge Valve

Product Specifications

Industrial Ecosystem & Supply Chain Structure

Application Fit & Sizing Matrix

Reliability & Engineering Risk Analysis

Compliance & Manufacturing Standards