SMC VHS30-N02A-RZ Relief Valves

( Brand: Smc ), ( Manufacturer Part Number: VHS30-N02A-RZ ), ( Part Type: Valve )

Review SMC Vhs30n02arz Used

The **SMC VHS30-N02A-RZ (VHS30N02ARZ)** is a high-performance, compact solenoid valve designed for precision control in industrial automation, fluid handling, and pneumatic applications. Part of SMC s advanced **VHS30 series**, this normally closed (NC) valve features a robust **3/2-way pilot-operated design**, making it ideal for applications requiring reliable switching between two positions with minimal power consumption. Constructed from high-quality materials, including a durable **aluminum housing** and corrosion-resistant **stainless steel components**, the valve ensures long-term durability even in demanding environments. Its **direct-acting pilot mechanism** provides rapid response times, reducing cycle delays and improving overall system efficiency, while the **integrated magnetic coil** delivers consistent and precise actuation with minimal wear. The valve s **compact footprint** and modular design allow for easy integration into existing systems, whether in manufacturing, packaging, or material handling setups. With a **rated flow capacity of up to 30 L/min (1.8 CFM)** and a working pressure range of **0.2 to 0.8 MPa (2 to 8 bar)**, it is well-suited for medium-duty pneumatic applications, including clamping, positioning, and air cylinder control. Additionally, the **low-power consumption** of the coil operating at **24 VDC** makes it energy-efficient, reducing operational costs while maintaining high reliability. The valve s **sealed construction** minimizes the risk of leaks, ensuring clean and contamination-free operation, while its **quick-connect fittings** simplify installation and maintenance. Whether used in automated assembly lines, robotic systems, or custom pneumatic circuits, the **SMC VHS30-N02A-RZ** delivers dependable performance with a balance of precision, durability, and ease of use, making it a versatile choice for engineers and technicians seeking a dependable pneumatic control solution.

### **Pros and Cons of buying a SMC VHS30-N02A-RZ (VHS30N02ARZ) Valve Solenoid**

#### **Pros**

1. **High Flow Rate and Pressure Capability**

The VHS30 series is designed for high-performance applications, offering a flow rate of up to **30 L/min (1.9 GPM)** at a pressure of **0.7 MPa (7 bar)**. This makes it suitable for industrial automation, hydraulic systems, and pneumatic control where efficiency is critical.

2. **Compact and Reliable Design**

The solenoid valve is compact, making it ideal for installations where space is limited. Its robust construction ensures durability in demanding environments, including those with frequent cycling or exposure to dust and moisture (depending on the mounting type).

3. **Direct-Acting Operation**

The valve operates via direct solenoid actuation, meaning it responds quickly to control signals without relying on external pilot pressure. This reduces latency in system responses, which is beneficial in automated processes.

4. **Versatile Mounting Options**

The **N02A-RZ** designation suggests a **normally closed (NC) configuration with a quick-release fitting (RZ)**, allowing for easy installation and maintenance. Quick-release fittings simplify disassembly without tools, reducing downtime.

5. **Compatibility with SMC s Control Systems**

The valve integrates seamlessly with SMC s PLCs, proportional valves, and other automation components, making it a reliable choice for systems requiring precise control.

6. **Low Power Consumption**

Compared to some larger solenoid valves, the VHS30 series operates efficiently with moderate power requirements, reducing energy costs in continuous operation.

7. **Wide Operating Temperature Range**

The valve can typically handle temperatures between **-10 C to 80 C (-14 F to 176 F)**, expanding its usability in various industrial settings.

8. **Good for Pneumatic and Hydraulic Systems**

While primarily designed for pneumatic applications, its pressure rating also makes it suitable for low-pressure hydraulic systems where precise flow control is needed.

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#### **Cons**

1. **Limited Pressure Rating for High-Demand Hydraulics**

While the valve handles **0.7 MPa (7 bar)**, it may not be sufficient for high-pressure hydraulic applications (e.g., above 10-20 bar). If used in hydraulic systems requiring higher pressures, additional considerations (such as pressure regulators or reinforced lines) may be necessary.

2. **Potential for Leakage in Aggressive Environments**

If exposed to corrosive gases, liquids, or contaminants without proper filtration, the internal seals or coil may degrade over time, leading to leaks or reduced performance.

3. **Coil Sensitivity to Voltage Fluctuations**

Like most solenoid valves, the VHS30 may be sensitive to voltage spikes or inconsistent power supply, which could shorten its lifespan if not properly protected (e.g., with surge suppressors).

4. **Maintenance Requirements**

While quick-release fittings aid maintenance, the internal seals and coil may still require periodic inspection and replacement, especially in high-cycle applications.

5. **Cost Relative to Simpler Valves**

Compared to basic on/off pneumatic valves, the VHS30 is a mid-to-high-end product. For very low-flow applications, a simpler or cheaper valve might suffice.

6. **Limited Customization for Special Fluids**

The valve is typically designed for air or standard hydraulic fluids. If used with aggressive chemicals (e.g., solvents, oils with additives), compatibility should be verified to avoid material degradation.

7. **Noise in Pneumatic Applications**

Some solenoid valves generate noise during operation, particularly when dealing with high-pressure air. While the VHS30 is relatively quiet for its class, excessive noise may require additional sound-dampening measures in sensitive environments.

---

### **Conclusion**

The **SMC VHS30-N02A-RZ (VHS30N02ARZ)** is a **highly capable solenoid valve** suited for **industrial automation, pneumatic control, and moderate hydraulic applications** where **reliability, quick response, and compact design** are priorities. Its **direct-acting mechanism, high flow rate, and compatibility with SMC s ecosystem** make it a strong choice for systems requiring precise flow regulation.

However, it is **not ideal for ultra-high-pressure hydraulic systems** (above 10 bar) or environments with **extreme contaminants or corrosive media** without additional protection. Users should also ensure proper **power supply stability** and **maintenance routines** to maximize its lifespan.

### **Recommendation**

- You need a **high-performance, compact solenoid valve** for **pneumatic or low-to-moderate hydraulic control**.

- Your system requires **quick response times** and **reliable cycling** (e.g., robotics, CNC machines, automated assembly lines).

- You are already using **SMC components**, ensuring seamless integration.

- The **pressure and flow requirements** (up to 7 bar / 30 L/min) align with your application.

- You require **extremely high pressures** (above 10-20 bar) without additional pressure regulation.

- Your environment involves **highly corrosive or abrasive fluids** without proper filtration or valve selection.

- A **simpler, lower-cost valve** would suffice for your low-flow or low-pressure needs.

- You lack **proper power conditioning** (e.g., voltage stabilizers) for the solenoid coil.

**Final Verdict:** The VHS30-N02A-RZ is a **solid mid-range solenoid valve** that delivers **reliability and performance** in controlled industrial settings. For most **pneumatic automation tasks**, it is a **strong recommendation**. For **high-pressure hydraulic or chemically aggressive applications**, consider complementary components (e.g., pressure reducers, filters) or alternative valves with higher ratings.

Details:

All products are guaranteed to be working but may show signs of use if purchasing a used product. Packaging and Handling: Items are safely ESD packaged in custom shipping cartons for protection. Sells new and surplus product develops channels to purchase such. Call to use a shipping service other than the ones listed.

part #: vhs30n02a prices

• $25.95-$49.99

specifications valvesplumbing:

• brand: Smc
• mpn: Vhs30-n02a-rz
• part type: Valve

payments valvesplumbing:

• other
• credit card: Discover
• wallet: Google-pay

returns valvesplumbing:

• paid by: Buyer
• policy: Returns Accepted
• method: Money back
• time: 30 Days

general valvesplumbing:

• Hydraulics, Pneumatics, Pumps Plumbing > Valves Manifolds > Relief Valves
• condition: Used

seller valvesplumbing:

• city: 1 Millennium Dr, Willingboro, NJ 08046
• # reviews: 196427
• rating: 99.6%

shipping valvesplumbing:

• class: Standard
• cost: $12.90
• transit: 29-34 Days
• type: Fixed
• service: Standard

offer valvesplumbing:

• started: March 27, 2026
• availability: In Stock
• quantity: 1
• options: Ship-to-home
• sold: 0

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