SMC SYJ7320-5YO-01F-Q Solenoid Valve
5-Port 3-Position Closed Center, G1/8, 24VDC
Precision Air Control in a Compact Package
The SMC SYJ7320-5YO-01F-Q is a 5-port, 3-position closed center solenoid valve from SMC's SYJ7000 series, renowned for combining low power consumption with reliable switching performance across industrial automation applications.
The 3-position closed center configuration ensures that when both solenoids are de-energized, all ports are blocked, allowing the connected actuator to hold its position without pressure or exhaust. This feature is essential for cylinder applications requiring mid-stroke positioning or where uncontrolled movement during power interruptions poses safety or process concerns.
With G1/8 port size, this compact valve is ideal for small-bore cylinders and space-constrained pneumatic circuits where larger valve bodies cannot accommodate the manifold geometry.
Technical Specifications
| Parameter |
Value |
| Series |
SMC SYJ7000 |
| Valve Function |
5-port, 3-position closed center |
| Port Size (A/B) |
G1/8" threaded |
| Operating Pressure |
0.15 - 0.7 MPa (internal pilot) |
| Maximum Flow Rate |
525 L/min |
| Rated Flow (P→A/B) |
0.22 dm³/s (0.792 m³/h) |
| Rated Flow (A/B→EA/EB) |
0.24 dm³/s (0.864 m³/h) |
| Control Voltage |
24V DC |
| Power Consumption |
0.5 W (standard pilot solenoid) |
| Response Time |
~30 ms |
| Switching Frequency |
5 Hz |
| Electrical Entry |
DIN terminal without connector (YO) |
| Indicator Light / Surge Suppressor |
Not included |
| Manual Override |
Non-locking push type |
| Exhaust Type |
Pilot valve individual exhaust |
| Mounting |
Body ported with bracket |
| Seal Material |
Rubber |
| Operating Temperature |
-10 to +50°C |
| Design |
Copper-free |
| Certification |
CE (Q suffix) |
SYJ7000 Series Advantages
The SYJ7000 series features a low-power pilot solenoid with 0.5W consumption, enabling direct PLC output relay control without intermediate relays or solid-state output modules. This reduces panel wiring complexity and eliminates potential fault sources in control circuits.
Individual pilot exhaust maintains clean pilot switching regardless of main circuit conditions, preventing back-pressure interference in circuits with built-in silencers or downstream back-pressure.
Rubber seal construction handles standard lubricated or non-lubricated compressed air service, while copper-free design ensures compatibility with broader air quality conditions without risk of acetylene compound formation.
DIN Terminal (YO) Configuration
The YO electrical designation indicates this valve ships with a DIN terminal chamber without pre-attached connector. The DIN terminal accepts standard DIN 43650 Form A connectors (EN175301-803), which users wire and attach in the field. No integrated indicator LED or built-in surge voltage suppressor is included.
This configuration is ideal for panel builders using standardized wiring with DIN-type solenoid connectors, allowing direct attachment of pre-wired DIN connectors without pigtail management. For installations requiring surge protection, consider the YOZ variant with non-polar surge suppressor.
Application Areas
- Pneumatic cylinder mid-stroke hold applications
- Safety-critical actuator circuits
- Compact pneumatic manifolds
- Machine tool fixtures and clamping systems
- Packaging and material handling systems
Frequently Asked Questions
What does "3-position closed center" function mean in practice?
When both solenoids are de-energized, the spool blocks all five ports—supply, both working ports (A and B), and both exhaust ports. The connected actuator holds its position, neither extending nor retracting, unlike 2-position valves that default to one end of travel when de-energized.
Does the SYJ7320-5YO-01F-Q include a surge voltage suppressor?
No. The YO suffix indicates no indicator light and no surge suppressor. For applications where inductive transients could affect PLC inputs or nearby electronics, consider the YOZ variant with non-polar surge suppressor.
Can this valve be mounted on a manifold, or is it body ported only?
The SYJ7320-5YO-01F-Q is specifically the body ported with bracket variant—ports are accessed directly on the valve body via G1/8 threaded fittings. For base-mounted manifold installation, a different suffix in the SYJ7000 series is required.
What DIN connector is compatible with the YO terminal type?
The YO terminal uses standard DIN 43650 Form A interface (EN175301-803 Form A), one of the most common industrial solenoid connector formats. The connector is not included and must be sourced separately.
What is the difference between the SYJ7320 and SY7320 in the SMC lineup?
The SYJ7000 series uses low-power pilot-operated design (0.5W solenoid) suitable for direct PLC control. The SY7000 series features different internal architecture with higher flow capacity but typically higher power consumption. SYJ7000 is preferred for PLC-direct operation and energy efficiency; SY7000 fits where maximum flow throughput is primary.
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