Actuator for Aseptic Filling Valves | Pneumatic & Electric

Product Specifications

Technical details and manufacturing context for Actuator (Pneumatic/Electric)

Definition

The actuator is a critical component of an aseptic filling valve, responsible for precisely controlling the valve's stem or gate movement. It translates control signals into linear or rotary motion to initiate, modulate, or stop the flow of sterile product during the filling process. Its reliability and precision are essential for maintaining sterility, ensuring accurate fill volumes, and preventing contamination in aseptic packaging lines. This directory entry covers both pneumatic and electric actuator versions used in food manufacturing environments. Pneumatic actuators operate on compressed air, typically at pressures between 1.0 and 1.6 MPa, while electric actuators use a 24 V DC supply (with ±10% tolerance) and may accept a 4–20 mA control signal when equipped with a positioner. Both types are designed for operating temperatures from -40°C to 85°C and offer ingress protection ratings of IP54 to IP65 (per IEC 60529), with higher ratings suitable for washdown environments. Stroke length ranges from 15 to 60 mm depending on valve size, and actuation time for 90° rotation is typically 1 to 5 seconds, faster for smaller valves. Torque output ranges from 10 to 100 N·m to overcome seat friction, and air consumption for pneumatic versions is 0.5 to 2.0 L/min at 0.6 MPa supply pressure. Body materials are typically stainless steel grades 304 or 316 (per ASTM A276) for food contact, with aluminum alloy housings, PTFE or Viton seals, and copper or brass air fittings. Weight varies from 2 to 8 kg depending on actuator size and type. These values are reference ranges for directory purposes; actual specifications must be confirmed with the legal manufacturer or supplier for the specific model and application. The actuator's performance directly impacts fill accuracy and sterility, so proper selection and verification are critical.

Working Principle

A pneumatic actuator uses compressed air pressure acting on a piston or diaphragm to create linear or rotary force. An electric actuator uses an electric motor (often with a gearbox) to generate torque or thrust. Both types receive signals from a control system to move the valve to a specific position (open, closed, or modulated). The control signal for electric actuators is typically 4–20 mA when a positioner is used, while pneumatic actuators rely on air pressure regulation. The actuator's motion is transmitted to the valve stem or gate, enabling precise control of product flow. The operating principle ensures that the valve responds accurately to control commands, maintaining the required sterility and fill volume.

Common Materials

Stainless Steel (body, stem), Aluminum Alloy (housing), PTFE/Viton (seals, gaskets), Copper/Brass (air fittings)

Technical Parameters

Parameter	Typical range	Notes & selection driver
Operating Pressure	1.0–1.6 MPa
Supply Voltage	24 ±10% V DC	For electric actuators only
Control Signal	4–20 mA	For electric actuators with positioner
Operating Temperature	-40–85 °C	For pneumatic and electric versions
Ingress Protection	IP54–IP65	Higher IP for washdown environmentsIEC 60529
Stroke Length	15–60 mm	Depends on valve size
Actuation Time	1–5 s	For 90° rotation; faster for smaller valves
Torque	10–100 N·m	Required to overcome seat friction
Air Consumption	0.5–2.0 L/min	At 0.6 MPa supply pressure
Body Material	304/316	Stainless steel for food contactASTM A276
Weight	2–8 kg	Depends on actuator size and type

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

Piston/Diaphragm (Pneumatic) or Motor (Electric)
Converts the input energy (air pressure or electricity) into mechanical force/motion.

Material: Stainless Steel/Aluminum/Copper Windings
Housing/Body Part
Encloses and protects internal components from the environment.

Material: Stainless Steel (316L) or Aluminum Alloy
Stem/Output Shaft Part
Transmits the actuator's motion directly to the valve stem or linkage.

Material: Stainless Steel
Position Feedback Sensor
Provides real-time signal to the control system indicating the actuator's position (open/closed/%).

Material: Electronic Components (Potentiometer, Encoder)
Seals and Gaskets Part
Prevent leakage of process media or ingress of contaminants, maintaining sterility.

Material: PTFE, Viton, EPDM

Applied To / Applications

This component is essential for the following industrial systems and equipment:

Aseptic Filling Valve

View system integration details

Manufacturers of Actuator (Pneumatic/Electric)

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Frequently Asked Questions

What is the operating pressure range for pneumatic actuators?

The operating pressure range is 1.0 to 1.6 MPa. Always confirm the exact requirement for your valve model.

What supply voltage is required for electric actuators?

Electric actuators require a 24 V DC supply with a tolerance of ±10%. This is a standard reference; check the manufacturer's specifications for your specific actuator.

What ingress protection rating is suitable for washdown environments?

The ingress protection rating ranges from IP54 to IP65 per IEC 60529. Higher ratings (e.g., IP65) are more suitable for washdown environments. Verify the rating needed for your application.

How does the actuator control the valve position?

The actuator receives control signals from a control system. Pneumatic actuators use air pressure, while electric actuators use a 4–20 mA signal (if a positioner is fitted). The actuator converts this signal into linear or rotary motion to position the valve stem or gate.

Data Basis

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Preliminary Technical Classification

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pressure:	0 to 10 bar (pneumatic), 0 to 600 psi (electric)
other spec:	Flow rate: 0.5-5 L/min, Slurry concentration: up to 40% solids
temperature:	-20°C to 120°C

Actuator (Pneumatic/Electric)

Product Specifications

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