Overview
The SMC VQZ3151-3YZ is a 3-port, base mount solenoid valve designed for pneumatic directional control in industrial automation systems. This used unit operates across the 0.15–0.7MPa pressure range with 110VAC coil voltage at 50/60Hz frequency. The VQZ series combines proven reliability with flexible mounting and compact footprint, making it ideal for retrofit applications and maintenance replacements in existing pneumatic circuits.
Key Features
- 3-port solenoid valve with base mount design for easy installation
- Operating pressure range: 0.15–0.7MPa (Class B)
- Coil voltage: 110VAC 50/60Hz
- Aluminum body construction with choice of metal or rubber seal softgoods
- Direct air/inert gas media compatibility
- Compact dimensions: 56.5mm H × 45mm W × 76mm L
Technical Specifications
- Operating Pressure: 0.15–0.7MPa
- Coil Voltage: 110VAC, 50/60Hz
- Ports: 3-port configuration
- Mounting Style: Base mount (ported)
- Body Material: Aluminum
- Media: Air/inert gas
- Seal Type: Metal or rubber seal available
- Effective Area (Cv): Metal seal 2.2–16.2 (0.12–0.9); Rubber seal 3.6–21.6 (0.2–1.2)
- Response Time: 1ms (standard pressure)
- Operating Temperature: 14–122°F (−10–50°C)
- Dimensions: H 56.5mm × W 45mm × L 76mm
- Certification: Compliant with industrial pneumatic standards
Typical Applications
- Pneumatic cylinder direction control in industrial automation
- Automated production line valve replacement
- HVAC and fluid power systems requiring solenoid switching
- Machine tool coolant circuit directional control
- Robotics and material handling equipment pneumatic actuation
Compatibility & Replacements
Compatible With
- SMC pneumatic cylinders (CAL, CQ, MGP series)
- SMC manifold blocks and valve islands
- ISO 4401 (CETOP 03/05) ported aluminum manifolds
- Industrial PLC control systems with 110VAC relay outputs
- Compressed air networks 0.15–0.7MPa
Replaces / Drop-In Replacement For
- SMC VQZ3151 series valves (earlier/equivalent models)
- Standard 3-port, base mount solenoid valves rated for 110VAC 0.7MPa
- Verify compatibility with your OEM documentation or system integrator before ordering.
Works With
- Pneumatic circuit schematics using ISO 1219 directional control symbols
- 24VDC pilot pressure systems (external pilot option available on some VQZ variants)
- Standard industrial 110VAC control cabinets and motor starter enclosures
- SMC remote manifold systems and modular pneumatic blocks





