SMC SY3220-5G-C4 Solenoid Valve

SMC SY3220-5G-C4 5/2-way Single-coil Pilot-operated Solenoid Valve

1. Product Positioning

SMC SY3000 series miniature 5/2-way single-coil pilot-operated solenoid valve.

Designed specifically for high-frequency switching, suitable for small cylinder control.

Widely applied in pneumatic automation, electronic equipment, packaging machinery and other industries.

2. Model Code Definition (SY3220-5G-C4)

3. Main Technical Specifications

4. Standard Accessories List

5. SY3220 Series Full Model List (Common Types)
   

   Model	Voltage	Wiring Type	Port Size	Features
   SY3220-5G-C4	DC24V	Direct outlet	φ4mm	Standard type, high-frequency switching
   SY3220-5G-C6	DC24V	Direct outlet	φ6mm	High flow type
   SY3220-5LZ-C4	DC24V	Socket with indicator	φ4mm	Visible status, easy diagnosis
   SY3220-5LD-C4	DC24V	Socket with indicator + diode	φ4mm	Reverse polarity protection, circuit protection
   SY3220-4G-C4	AC110V	Direct outlet	φ4mm	Compatible with AC110V control system
   SY3220-6G-C4	AC220V	Direct outlet	φ4mm	Compatible with AC220V control system
   SY3220-5G-M5	DC24V	Direct outlet	M5 thread	Thread connection type
   SY3220-5GUE-C4	DC24V	Direct outlet with indicator + surge protection	φ4mm	Advanced protection type

   Compatible Manifold Models

7. Competitor & Cross-Brand Replacement Chart

8. Selection Guidelines & Replacement Rules

Selection Tips

Three key factors for SY3220 selection: voltage, wiring and port size;

5 stands for 24V, G for direct wire outlet;

C4 for Φ4 tube, C6 for Φ6 tube;

20 for single-coil, 40 for dual-coil match;

10mm miniature body, manifold mounting saves space.

Selection Decision Tree

1. Control Voltage: Choose 5 for DC24V, 4 for AC110V, 6 for AC220V
2. Wiring Type: Fixed installation → G (direct outlet); Frequent replacement → LZ/LD (socket type)
3. Port Size: Low flow → C4 (Φ4mm); High flow → C6 (Φ6mm)
4. Control Mode: Single-acting → 20 single-coil; Double-acting → 40 dual-coil
5. Mounting: Manifold mounting → Standard type; Independent mounting → Model with F1 bracket

Replacement Recommendations

Budget limited: Choose Airtac 4V210-06, 30% cost down, sufficient performance for most working conditions

Frequent maintenance: Select LZ/LD socket type for fast coil replacement and less downtime

Higher flow required: Upgrade to SY5220 series (medium body, effective area 2.8mm²)

Harsh environment: Choose UE suffix model (with indicator + surge protection) for higher reliability

9. Typical Application Fields
10. Electronic Equipment: Small cylinder drive, automatic assembly line, PCB conveying & positioning
11. Packaging Machinery: Label attaching, film tension control, packaging sealing cylinder
12. Medical Equipment: Pneumatic control of analytical instruments, sample conveying mechanism
13. Automation Production Line: Jig & fixture positioning, small manipulator joint control
14. Food Processing: Small pneumatic actuator, sorting mechanism control
15. Key Operation & Maintenance Points
16. Before Installation: Ensure medium cleanliness (5μm filter recommended) to prevent seal damage by impurities
17. Installation Direction: Follow the flow arrow on valve body; reverse installation is prohibited
18. Manifold Mounting: Use sealing gasket, tighten screws evenly (torque 0.5～0.7N·m)
19. Maintenance Cycle: Inspect seals every 6 months; replace O-rings annually
20. Troubleshooting: No action → Check in sequence: Voltage → Air pressure → Coil → Pilot valve

SMC SY Series Solenoid Valve Complete Model List & Selection Guide

1. Series Classification & Naming Rule Overview

1.1 Series Specification Classification (by Body Size & Flow)

1.2 Complete Naming Rule (Example: SY3220-5G-C4)

2. Full Standard Model List By Series

2.1 SY3000 Series (Mini, 10mm Width)

5/2-way Single-coil (Type 20)

5/2-way Dual-coil (Type 40)

5/3-way (30/31/32 Type)

2.2 SY5000 Series (Medium, 15mm Width)

5/2-way Single-coil (Type 20)

5/2-way Dual-coil (Type 40)

5/3-way (30/31/32 Type)

2.3 SY7000 Series (Large, 20mm Width)

2.4 SY9000 Series (Extra Large, 30mm Width)

3. Special Specification Models (Common Derivatives)

3.1 With Mounting Bracket (Suffix F1)

For independent mounting, only available for 5/2-way single-coil models

SY3220-5G-C4-F1

SY5220-5G-C6-F1

SY7220-5G-C6-F1

3.2 CE Certified Model (Suffix -Q)

Compliant with EMC & Low Voltage Directive, widely used for European export

SY3220-5G-C4-Q

SY5220-5G-C6-Q

SY7220-5G-C6-Q

3.3 External Pilot Type (Suffix -P)

Suitable for vacuum or low-pressure environment (0~0.7MPa)

SY3220-5G-C4-P

SY5220-5G-C6-P

3.4 Clean Room Version (Suffix -C)

Suitable for Class 100 clean environment

SY3220-5G-C4-C

SY5220-5G-C6-C

4. Compatible Manifold Models (Universal for All Series)

5. Selection Mnemonic

Five key points for SY selection: series, function, voltage;

3=Mini,5=Medium,7=Large,9=Extra Large;

2=5/2-way,3=5/3-way remember clearly;

20=Single-coil,40=Dual-coil;

30=Closed,31=Exhaust,32=Pressure center;

5=24V,G=direct wire outlet;

C4 for Φ4,C6 for Φ6 tube;

Manifold mounting saves space, add F1 for standalone installation;

Add -Q for CE, add -P for external pilot.

6. Core Selection Decision Tree
7. Flow Demand: Mini cylinder → SY3000; Small → SY5000; Medium → SY7000; Large → SY9000
8. Control Mode: Single-acting → Single-coil(20); Reciprocating → Dual-coil(40); Mid-stop → 5/3-way(30/31/32)
9. Voltage Match: DC24V→5; AC110V→4; AC220V→6
10. Wiring Preference: Fixed installation→G; Frequent replacement→LZ/LD
11. Port Size: Low flow→C4; High flow→C6; Thread→M5
12. Mounting: Manifold→Standard; Independent→Model with F1 bracke
13. Cross-Series Replacement Reference