UNIVER AG-3021 3/2-Way Vacuum Poppet Valve

1. Authoritative Model Code Definition

AG-3021-UNIVER

1. AG: Series code for UNIVER standard vacuum poppet valves, differentiated from AI (pneumatic valves), CM (compact cylinders) and other series, specially designed for vacuum applications.
2. 3021: Combined product specification code. 30 stands for 3/2-way valve type; 21 represents G1/2 port size plus normally open (NU) funcţie.
3. UNIVER: Original Italian brand logo, engaged in pneumatic component manufacturing for 60 years and a leading supplier of vacuum technology in Europe.
4. Parametrii tehnici de bază (Official Standard)

3. Application Environment Guidelines

Recommended Scenarios (✅ Applicable)

1. Automatic Production Lines: Vacuum sucker material handling systems (PCB boards, glass sheets, thin metal plates, cartons, etc.)
2. Mașini de ambalare: Vacuum thermoforming machines, vacuum sealing machines, vacuum adsorption systems for labelling machines
3. Printing Equipment: Vacuum feeding for paper and positioning adsorption for printed products
4. Electronic Manufacturing: Vacuum handling and positioning systems for semiconductor wafers and display panels
5. Woodworking Machinery: Vacuum fixing for plates, vacuum worktables of CNC machining centers

Unrecommended Scenarios (❌ Avoid)

1. Medii corozive puternice (acid & alkali gas): Custom stainless steel version is suggested.
2. High-temperature environments (over 50℃): Accelerate seal aging and weaken vacuum performance.
3. Sisteme de lubrifiere fără ulei: Cause seal wear and shorten service life in long-term operation.
4. High-dust environments without filtration: Easily lead to spool jamming; fine filter installation is required.
5. Liquid medium or high-humidity environments: Prone to internal icing and corrosion; air dryer shall be equipped.
6. Cross-Brand Equivalent Replacement List

5. Complete AG Series Order Number List (Latest Official Version)

6. Common Fault Diagnosis & Maintenance Solutions (Official Recommended)

7. Cazuri tipice de aplicare

Caz 1 Electronic Industry: PCB Board Vacuum Conveying System

Customer Profile

A large-scale PCB manufacturer with annual output of 1 million square meters multi-layer circuit boards, requiring high-speed and high-precision conveying for 0.2-3mm thick PCB boards.

Core Challenges

1. Thin and flexible PCB boards are easy to be damaged by traditional mechanical clamps.
2. Production line speed reaches 60m/min, requiring fast vacuum system response.
3. Slight dust exists in working environment, stable vacuum performance is required.
4. Vacuum pressure needs to be maintained after power off to prevent PCB falling.

Soluții

Equip 12 sets of AG-3021 vacuum valves matched with UNIVER vacuum suckers on both sides of conveying lines.

Adopt AG-3020 normally closed valves as standby to keep vacuum under power failure.

Install 5μm precision filters and automatic drainers to ensure clean air source.

Application Effects

1. PCB damage rate dropped from 5% la 0.3%, economisind aproximativ 2 million RMB annually.
2. Vacuum response time less than 40ms, fully meeting high-speed production demands.
3. Trouble-free continuous operation for 180 zile, maintenance frequency reduced by 70%.
4. Stable vacuum degree above 700mmHg ensures reliable PCB adsorption.

Caz 2 Industria ambalajelor: High-speed Thermoforming Packaging Machine

Customer Profile

A food packaging enterprise producing 5 million packs of snack packages daily via thermoforming packaging machines.

Core Challenges

1. Packaging film thickness only 0.08-0.15mm requiring even vacuum suction.
2. Packaging speed up to 120 packs per minute needing rapid vacuum switching.
3. High ambient temperature up to 40℃ demands good high-temperature resistance of valves.
4. Oil-free pollution is required to meet food industry hygiene standards.

Soluții

Adopt standard AG-3021 matched with food-grade vacuum suckers.

Apply oil-free lubrication system equipped with oil mist separators.

Install temperature sensors to monitor valve operating temperature in real time.

Application Effects

1. Packaging film breakage rate decreased from 3.5% la 0.8%, economisind aproximativ 1.5 million RMB material cost yearly.
2. Valve response time below 35ms satisfies high-speed packaging production.
3. Passed FDA food-grade certification and meets food safety standards.
4. Valve service life extended to 2 ani, 50% longer than similar products.
5. Compliance Certificates & Shipping Information
6. Certificari

CE Certificate: Compliant with EU industrial electrical safety standard EN 60947-5-2

ISO 9001 Certificate: UNIVER quality management system certification

RoHS Certificate: Lead-free eco-friendly design complying with EU environmental directives

2. Conformitatea transportului aerian

No built-in lithium batteries, supercapacitors or hazardous substances

Classified as ordinary industrial pneumatic components, no special documents required for air and sea shipment

Package conforms to ISTA 2A standard for direct international transportation

3. Origine: Manufactured in Milan, Italia, original imported with guaranteed quality

Precise Application Scenarios of UNIVER AG-3021 Vacuum Valve

Poziționarea produsului: Italian UNIVER 3/2-way normally open vacuum solenoid valve with G1/2 port, specially used for vacuum adsorption circuit on-off control, suitable for medium-large flow and frequent switching.

Main Applicable Scenarios

1. Automatic Manipulator Handling

Vacuum grabbing and transferring of steel plates, aluminum plates and stainless steel plates

Loading & unloading grabbing of cartons, plastic boxes and material containers

Vacuum adsorption and shifting of workpieces on assembly lines

2. Packaging Machinery Industry

Vacuum circuit control for thermoforming machines

Negative pressure adsorption for vacuum labellers and film laminators

Food vacuum sealing machines, horizontal packing machines

Vacuum opening and feeding of express bags and packaging bags

3. Imprimare & Paper Industry

Paper feeding and conveying for high-speed printing machines

Adsorption positioning of color boxes and corrugated boards

Vacuum fixing for die-cutting machines and paper pasting machines

4. Woodworking Machinery

Vacuum plate fixing on CNC cutting machines and engraving machines

Negative pressure pressing for wooden doors and plate veneering

Plate positioning and clamping on furniture production lines

5. Glass & Photovoltaic Industry

Vacuum grabbing and conveying of flat glass and tempered glass

Loading and unloading of photovoltaic glass and solar panels

Adsorption transferring of lenses and acrylic sheets

6. 3C Electronic Industry

Vacuum conveying of PCB circuit boards

Material picking by adsorption for display panels, backlight panels and plastic housings

Vacuum positioning of battery cells and battery modules

7. Logistics Sorting Industry

Vacuum diversion for automatic express sorting

Vacuum grabbing and stacking of materials

8. Rubber & Plastic Industry

Vacuum control for plastic sheet and film stretching forming

Negative pressure shaping and adsorption conveying of rubber products

Condiții de lucru aplicabile

1. On-off matching for medium and small centralized vacuum generators
2. 24-hour frequent start-stop vacuum systems on assembly lines
3. General automatic equipment in clean air source and normal temperature workshops
4. Safety working conditions requiring automatic vacuum breaking when normally open and power off

Inapplicable Working Conditions

1. Severe environments with strong corrosion, heavy oil pollution and unfiltered dense dust
2. High-temperature baking and hot air drying equipment above 50℃
3. Ultra-high negative pressure precision micro vacuum testing equipment
4. Underwater and damp immersion working conditions
5. Flammable and explosive sites without explosion-proof modification

Complete Matching Coil Voltage Specifications for UNIVER AG-3021

Core Matching Information

AG-3021 adopts Type U2 electro-pilot valve; coils are separately optional accessories compatible with various standard industrial voltages.

Key Technical Points

1. Voltage Fluctuation Range: ±10% of rated voltage (in line with UNIVER solenoid valve standards)
2. Modul de cablare: Standard DIN Type A connector; optional 90° upward connector, inline connector or 300mm loose cable
3. Duty Cycle: 100% funcţionare continuă (ED=100%), suitable for 24-hour non-stop production lines
4. Clasa de protectie: Coil body IP65, dustproof and waterproof for industrial use

Sugestii de selecție

1. Prioritize 24V DC: Most widely used in industrial automation, compatible with PLC/DCS control systems with strong anti-interference performance.
2. Notes for AC coils: 110V/230V AC coils shall be installed indoors in accordance with EN-60204-1 to ensure ventilation and heat dissipation.
3. Medii speciale: Explosion-proof coils need customized order for hazardous areas.
4. Installation Tip: Coils are connected to valve bodies via snap-fit structure for easy replacement without special tools.

FAQ

1. Is the coil supplied together with the valve?

Nu. AG-3021 valve body and coil are sold separately; purchase coils according to actual control voltage.

2. Are coils of different voltages interchangeable?

Da. Coils with different voltage ratings can be replaced freely as long as they match Type U2 electro-pilot interface.

3. Consequences of wrong voltage supply

Subtensiune: Insufficient electromagnetic force leads to failed valve switching

Supratensiune: Coil overheating burnout and electro-pilot valve damage