SMC SX3140-5NLOZ-Q Pneumatic Solenoid Valve

( Brand: Smc ), ( Manufacturer Part Number: SX3140-5NLOZ-Q ), ( Valve Operation: Solenoid ), ( Country Of Origin: Japan ), ( Type: Pneumatic Solenoid Valve )

Review SMC Pneumatic Solenoid Valve

The **SMC SX3140-5NLOZ-Q** is a high-performance, normally closed (NC) pneumatic solenoid valve designed for precise control in industrial automation, packaging machinery, and manufacturing applications. Part of SMC s renowned **SX series**, this valve is engineered to deliver reliable, efficient operation with a compact yet robust construction, making it ideal for environments where space optimization and durability are critical. Featuring a **5/2-way spool design**, the SX3140-5NLOZ-Q provides seamless switching between two air paths, enabling direct control over pneumatic actuators, cylinders, or other pneumatic devices with minimal response time. Its **normally closed (NC) configuration** ensures that air flow is blocked when the valve is de-energized, enhancing safety by preventing unintended actuation, while the energized state opens the valve to allow pressurized air to pass through, activating connected components with precision.

Constructed from high-quality materials, including a **durable aluminum housing** and corrosion-resistant components, this valve is built to withstand harsh industrial conditions, including exposure to dust, moisture, and temperature fluctuations within its specified operating range of **-10 C to 60 C**. The **5NLOZ-Q** designation indicates a **normally closed, 5/2-way valve with a 5/8" (NPT) male thread connection** on the air ports, ensuring compatibility with standard pneumatic fittings while maintaining a leak-proof seal. The valve s **low power consumption** and **fast response time** typically under 100 milliseconds make it an efficient choice for high-speed automation applications, where rapid and repeatable switching is essential. Additionally, its **modular design** allows for easy integration into existing pneumatic systems, with flexible mounting options, including direct flange or pipe connections, ensuring versatility in installation.

SMC s proprietary **SX series technology** incorporates advanced sealing mechanisms and a **piston-driven spool system**, which minimizes wear and tear while maximizing operational longevity. The valve s **electromagnetic coil** is designed for reliable activation, with a **low voltage requirement of 24V DC**, making it compatible with standard industrial control systems. The **normally closed (NC) default state** also contributes to energy efficiency by reducing unnecessary air consumption when the valve is inactive. For enhanced safety and diagnostics, the SX3140-5NLOZ-Q can be paired with SMC s **optional diagnostic modules**, which provide real-time feedback on valve status, ensuring proactive maintenance and minimizing downtime. Whether used in conveyor systems, robotic applications, or automated assembly lines, this valve exemplifies SMC s commitment to delivering **precision, reliability, and efficiency** in pneumatic control solutions.

### **Pros and Cons of buying a SMC SX3140-5NLOZ-Q Pneumatic Solenoid Valve**

1. **High Reliability and Durability** SMC is a well-established brand known for producing high-quality pneumatic components. This valve is designed for industrial use, offering long-term performance with minimal maintenance.

2. **Normally Closed (NC) Operation** The valve defaults to a closed state when de-energized, which can be safer in applications where air flow must be stopped during power loss or failure.

3. **Compact and Space-Efficient Design** The SX3140 series is designed for applications with limited space, making it suitable for automated machinery, robotics, and compact pneumatic systems.

4. **Fast Response Time** The valve operates quickly, allowing for precise control in high-speed pneumatic applications such as packaging, assembly lines, and clamping systems.

5. **Compatibility with SMC s Pneumatic System** It integrates seamlessly with other SMC components, including compressors, filters, and regulators, ensuring smooth system operation.

6. **Low Power Consumption** The valve is designed to be energy-efficient, reducing operational costs in continuous-use applications.

7. **Wide Operating Pressure Range** It handles pressures from 0.2 to 10 bar (2.9 to 145 psi), making it versatile for various industrial applications.

8. **Easy Installation and Maintenance** The valve features a straightforward mounting system and minimal internal components, reducing downtime for servicing.

9. **Environmental Resistance** It is designed to withstand dust, moisture, and temperature variations within specified limits, making it suitable for harsh industrial environments.

10. **Global Availability of Support** SMC has a strong global distribution network, ensuring easy access to spare parts, technical support, and documentation.

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1. **Higher Upfront Cost** Compared to generic or lower-end solenoid valves, SMC products are premium-priced, which may be a barrier for small businesses or budget-conscious projects.

2. **Limited Customization** The valve comes with standard specifications, and significant modifications (e.g., custom wiring, mounting, or pressure ratings) may require additional components or third-party adjustments.

3. **Dependence on SMC Ecosystem** While compatible with SMC s own components, integrating it with non-SMC pneumatic systems may require adapters or additional compatibility checks.

4. **Potential for Overkill in Low-Demand Applications** If the application requires only basic on/off control with minimal pressure demands, a simpler or cheaper valve might suffice.

5. **Maintenance Requirements** Although durable, like all pneumatic valves, it may require periodic cleaning of internal passages to prevent wear from contaminants in the air supply.

6. **Noise Considerations** Some solenoid valves, including this model, can generate audible noise during operation, which may be an issue in noise-sensitive environments.

7. **Limited Lifespan Under Extreme Conditions** While robust, prolonged exposure to extreme temperatures, high humidity, or contaminated air can reduce its lifespan if not properly maintained.

8. **Learning Curve for Non-Experts** Setting up and troubleshooting SMC valves may require familiarity with pneumatic systems, which could be a challenge for operators without technical training.

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The **SMC SX3140-5NLOZ-Q** is an excellent choice for industrial applications requiring **reliable, compact, and high-performance pneumatic control**. Its **normally closed operation, fast response, and compatibility with SMC s ecosystem** make it ideal for automated machinery, robotics, and precision pneumatic systems. However, its **higher cost and premium positioning** may not justify the investment for simple or low-budget applications.

If **cost efficiency, ease of use, or compatibility with non-SMC systems** is a priority, alternatives from other brands (e.g., Festo, ASCO, or generic valves) might be worth considering. For **high-reliability, long-term industrial use**, the SMC valve remains a strong recommendation due to its **durability, performance, and support network**.

- You need a **high-quality, normally closed solenoid valve** for industrial automation.

- Your system is **SMC-compatible**, or you prioritize long-term reliability.

- You operate in an environment where **durability and low maintenance** are critical.

- Budget constraints allow for a **premium pneumatic solution**.

- You require a **lower-cost option** for simple applications.

- Your system **does not use SMC components**, and compatibility is a concern.

- Noise or space constraints are significant, and other models may better fit your needs.

For most **serious industrial pneumatic applications**, the SMC SX3140-5NLOZ-Q is a **solid, well-supported choice** that balances performance with longevity.

Details:

This item is being sold as is, pictured. Shipping Services. SMC SX3140-5NLOZ-Q Pneumatic Solenoid Valve. 2-I3B-115420-SS-TW.

part #: sx31405nloz prices

• $19.99-$50.00

specifications valvesplumbing:

• brand: Smc
• mpn: Sx3140-5nloz-q
• valve operation: Solenoid
• country of origin: Japan
• type: Pneumatic Solenoid Valve

payments valvesplumbing:

• other
• wallet: Google-pay
• credit card: Diners-club

shipping valvesplumbing:

• class: Standard, Expedited, One-day
• carrier: USPS, UPS
• cost: $0.00
• service: USPS Ground Advantage, USPS Priority Mail, UPS Ground, UPS Next Day Air
• type: Calculated
• transit: 2-5 Days

general valvesplumbing:

• condition: For parts or not working
• Hydraulics, Pneumatics, Pumps Plumbing > Valves Manifolds > Other Valves Manifolds

returns valvesplumbing:

• policy: No Returns

offer valvesplumbing:

• options: Ship-to-home
• best offers: True
• quantity: 1
• started: April 22, 2026
• availability: In Stock
• sold: 0

seller valvesplumbing:

• city: Baroda, Michigan
• rating: 100.0%
• # reviews: 28809

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