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  3. SMC VV5QC21-07C6LD2

SMC VV5QC21-07C6LD2 Valves Manifolds

Vv5qc21-07c6ld2 Smc / Vv5qc2107c6ld2 Used

( Brand: Smc ), ( Manufacturer Part Number: VV5QC21-07C6LD2 ), ( Part Type: Valve Manifold )

Review SMC Vv5qc2107c6ld2 Used

The **SMC VV5QC21-07C6LD2** (also listed as **VV5QC2107C6LD2**) is a high-performance, compact solenoid valve designed for precision control in industrial automation, fluid power systems, and pneumatic applications. Part of SMC s advanced VV5 series, this normally closed (NC) valve features a robust, corrosion-resistant construction optimized for demanding environments where reliability and efficiency are critical. Engineered with a **2/2-way direct-acting design**, it operates seamlessly with compressed air or other gases, delivering rapid response times and consistent actuation under varying load conditions. The valve s **7-bar (100 psi) working pressure rating** ensures durability across a wide range of applications, from light-duty assembly lines to heavy-duty manufacturing processes, while its **C6LD2** designation indicates a specific coil type likely a **24V DC or 110V AC** (depending on the exact model variant) paired with a **low-power consumption** profile for energy-efficient operation. Its compact, modular design allows for easy integration into existing control systems, with standard **M10 x 1.5 thread connections** ensuring secure and leak-proof fluid or gas flow. The valve s **pilot-operated mechanism** minimizes power requirements while maximizing control precision, making it ideal for applications requiring smooth, silent operation, such as in food processing, packaging machinery, or laboratory instrumentation. Additionally, the **VV5 series** is known for its **IP65-rated enclosure**, providing protection against dust, water splashes, and contaminants, which extends the valve s lifespan in harsh industrial settings. Whether used in a custom automation project or as part of a larger pneumatic system, the **VV5QC21-07C6LD2** combines durability, versatility, and high-performance control to meet the exacting demands of modern manufacturing and automation.

### **Pros and Cons of buying a SMC VV5QC21-07C6LD2 (or VV5QC2107C6LD2) Solenoid Valve**

#### **Overview**

The **SMC VV5QC21-07C6LD2** is a **2-way, normally closed (NC) pneumatic solenoid valve** designed for general-purpose air control applications. It operates on **24V DC** and is part of SMC s **VV5Q series**, which is widely used in automation, packaging, and industrial machinery.

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### **Pros**

1. **Reliable Performance**

- SMC is a well-established brand known for durable and consistent pneumatic components. This valve is designed for high-cycle applications, making it suitable for continuous use in automated systems.

2. **Compact and Modular Design**

- The valve is compact, allowing for easy integration into tight spaces. It follows SMC s standard mounting and connection system, making it compatible with other SMC components (e.g., quick-connect fittings, manifolds).

3. **Low Power Consumption**

- Operates efficiently on **24V DC**, which is standard in many industrial control systems. It consumes minimal power when activated, reducing energy costs.

4. **Quick-Connect Fittings**

- Uses **SMC s standard quick-connect system**, simplifying installation, maintenance, and replacement. This reduces downtime and labor costs.

5. **Wide Compatibility**

- Works with standard **compressed air (0.2 0.8 MPa / 3 12 bar)** and is compatible with most **SMC actuators, cylinders, and control systems**.

- Supports **pilot control** (via optional pilot ports) for more complex sequencing if needed.

6. **Easy Maintenance**

- The valve has a **simple internal structure** with few moving parts, making it easier to clean, lubricate, and replace if damaged.

- SMC provides **standard spare parts**, reducing repair time.

7. **Cost-Effective for Standard Applications**

- While not the cheapest valve on the market, its **durability and reliability** often justify the cost in industrial settings where downtime is costly.

- Available at competitive prices from authorized SMC distributors.

8. **CE and Safety Certifications**

- Meets **EU safety standards (CE)**, ensuring compliance with industrial regulations in many regions.

9. **Standardized Control Signals**

- Compatible with **standard PLCs (Programmable Logic Controllers)** and industrial control systems, making integration straightforward.

10. **Good Response Time**

- While not ultra-fast, it provides **consistent and reliable actuation** for most pneumatic applications, with typical response times in the **100 300 ms range** (depending on air pressure and load).

---

### **Cons**

1. **Limited Pressure Range**

- Officially rated for **0.2 0.8 MPa (3 12 bar)**, but **exceeding 0.8 MPa (12 bar) can reduce lifespan**. High-pressure applications may require a different model.

- Not suitable for **vacuum applications** (only positive pressure).

2. **No Built-In Flow Control**

- Unlike some SMC valves (e.g., **VV5Q with flow control**), this model does **not regulate flow rate**, meaning external flow control valves may be needed for precise speed control of actuators.

3. **Basic Functionality**

- A **2-way NC valve** means it only **opens when energized** and **closes when de-energized**. For more complex operations (e.g., delayed closing, pilot control), additional components may be required.

- No **position feedback** (e.g., no built-in limit switches or sensors), so external monitoring may be needed for safety-critical applications.

4. **Dependence on Clean Air**

- Like all pneumatic valves, **contaminated or humid air** can cause **wear, leaks, or failure**. Requires proper **air filtration and drying** in the system.

- Moisture or debris in the air supply can **reduce valve lifespan**.

5. **Limited Environmental Resistance**

- While rated for **industrial use**, it is **not inherently corrosion-resistant** for harsh environments (e.g., high humidity, chemicals). A **protective coating or enclosure** may be needed in extreme conditions.

6. **No Built-In Diagnostics**

- Unlike some advanced valves, this model **does not provide diagnostic feedback** (e.g., internal fault detection). Issues may only be detected during operation, leading to unexpected downtime.

7. **Replacement Parts Availability**

- While SMC has a wide distribution network, **older models or discontinued parts** may have **limited availability** in some regions, potentially increasing repair costs.

8. **Not Ideal for High-Frequency Cycling**

- While durable, **extreme high-frequency operation (e.g., >1000 cycles/minute)** can reduce lifespan. For such applications, a **higher-end valve (e.g., SMC s VV5Q with reinforced components)** may be better.

9. **Wiring and Electrical Considerations**

- Requires **proper wiring and protection** (e.g., surge protection, correct voltage) to prevent damage. Incorrect wiring can lead to **valve failure or electrical hazards**.

10. **No Integrated Safety Features**

- Lacks **fail-safe mechanisms** (e.g., spring return for emergency shutdown). In safety-critical applications, additional **safety valves or interlocks** may be required.

---

### **Conclusion**

The **SMC VV5QC21-07C6LD2** is a **reliable, cost-effective, and easy-to-integrate** solenoid valve suitable for **standard pneumatic control applications** where simplicity and durability are prioritized. It excels in **general automation, packaging, and light industrial machinery** where **clean air and moderate pressure** are maintained.

However, it is **not ideal** for:

- **High-pressure or vacuum applications** (requires a different model).

- **Applications needing precise flow control or position feedback** (external components may be needed).

- **Extreme environments** (high humidity, chemicals, or dust without additional protection).

- **High-frequency or safety-critical operations** (may require a more advanced valve).

If your application is **within the valve s specified range** and you prioritize **reliability, ease of use, and compatibility with SMC s ecosystem**, this valve is a **solid choice**. For more demanding applications, consider **SMC s VV5Q series with flow control, pilot options, or reinforced components**.

---

### **Recommendation**

**Buy the SMC VV5QC21-07C6LD2 if:**

You need a **simple, reliable 2-way NC valve** for standard pneumatic control.

Your system uses **clean, compressed air (3 12 bar)**.

You are already using **SMC components** (ensures compatibility).

Your application does **not require advanced flow control or position feedback**.

You can maintain **proper air filtration and system hygiene**.

**Consider an alternative if:**

You need **flow control, pilot operation, or position sensing** (e.g., SMC VV5Q with flow control).

Your application involves **high-pressure (>12 bar) or vacuum**.

You require **higher cycle rates or extreme durability** (e.g., SMC s reinforced VV5Q series).

Your environment is **highly corrosive or dusty** (may need a sealed or coated valve).

You need **built-in diagnostics or fail-safe features** (may require additional safety components).

**Final Verdict:**

For **most standard pneumatic applications**, the **SMC VV5QC21-07C6LD2 is a well-proven, cost-effective solution**. Ensure your system meets its **operating conditions** (clean air, correct pressure, proper wiring) to maximize its lifespan and reliability. If your requirements extend beyond its basic functionality, explore **SMC s expanded VV5Q series or other brands** with advanced features.

Details:

SMC VV5QC21-07C6LD2 / VV5QC2107C6LD2 USED VQC MANIFOLD, 4/5 PORT SOLENOID VALVE. Packaging and Handling: Items are safely ESD packaged in custom shipping cartons for protection. All products are guaranteed to be working but may show signs of use if purchasing a used product. Call to use a shipping service other than the ones listed.

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part #: vv5qc2107c6ld2 price

  • $336.00

specifications valvesplumbing:

  • brand: Smc
  • mpn: Vv5qc21-07c6ld2
  • part type: Valve Manifold

general valvesplumbing:

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

returns valvesplumbing:

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

offer valvesplumbing:

  • options: Ship-to-home
  • started: April 24, 2026
  • sold: 0
  • quantity: 1
  • availability: In Stock

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  • # reviews: 2009 77
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  • city: 1 Millennium Dr, Willingboro, NJ 08046

shipping valvesplumbing:

  • class: Standard
  • type: Fixed
  • transit: 29-35 Days
  • service: Standard
  • cost: $12.90
part type: valve manifold,
category: business & industrial > hydraulics, pneumatics, pumps plumbing > valves manifolds, sku: 24019265821778793,
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1 offer $336.00 USD
  • Used. Offer #1 priced at $336.00 + $12.90 shipping estimate = $348.90* total. FACTORY WARRANTY MAY NOT APPLY SMC / VV5QC2107C6LD2 (USED) VQC MANIFOLD, 4/5 PORT SOLENOID VALVE.+$12.90 shipping

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