SMC SS5Y3-45FD-08U-C4-90718CDN Manifold Solenoid Valves SY3140-5FU 24VDC

( Brand: Smc ), ( Manufacturer Part Number: SS5Y3-45FD-08U-C4-90718CDN ), ( Part Type: Valve Manifold Solenoid ), ( Valve Operation: Solenoid ), ( Suitable Media: Air )

Review SMC Ss5y3-45fd-08u Manifold 24vdc Solenoid Valves

The **SMC SS5Y3-45FD-08U-C4-90718CDN** and **SY3140-5FU 24VDC** solenoid valves represent a sophisticated and highly versatile pairing of pneumatic control components, engineered for precision, reliability, and seamless integration into automated industrial, manufacturing, or robotic systems. These valves are part of SMC s advanced **SS5Y** series, a line renowned for its compact yet robust design, optimized for applications demanding high-speed response, minimal air consumption, and precise flow control. The **SS5Y3-45FD-08U-C4-90718CDN** is a **5-way, 3-position, normally closed (NC) pilot-operated directional control valve** with a **0.8-inch (20 mm) port size**, making it ideal for medium to high-flow applications where rapid switching and efficient air management are critical. Its **C4** designation indicates a **normally closed (NC) pilot control**, ensuring energy efficiency by defaulting to a closed state when de-energized, while the **90718CDN** suffix denotes a **24VDC direct-drive solenoid** with a **normally closed (NC) coil**, providing a compact, low-power alternative to traditional pilot-operated systems. The valve s **0.8-inch (20 mm) ports** allow for substantial airflow, accommodating pressures up to **10 bar (145 psi)**, and its **3-position operation** enables flexible control over pneumatic actuators, such as cylinders, grippers, or clamps, by directing air to multiple ports in sequence. The **SS5Y3** series is further distinguished by its **low noise operation**, **minimal leakage**, and **durable sealing system**, which extends the valve s operational lifespan while maintaining consistent performance under demanding conditions.

Complementing this directional valve is the **SY3140-5FU 24VDC solenoid valve**, a **2-way, normally closed (NC) pilot valve** designed to operate the SS5Y3 series with precision and reliability. This **24VDC direct-drive solenoid** features a **5-way, normally closed (NC) coil**, ensuring that the pilot air is only supplied when the valve is energized, which enhances safety and reduces energy waste. The **SY3140-5FU** is optimized for **low-power consumption**, making it suitable for applications where electrical efficiency is a priority, while its **robust construction** ensures durability in environments with frequent cycling or exposure to contaminants. The valve s **compact footprint** and **quick-connect fittings** facilitate easy installation and integration into existing pneumatic systems, allowing for streamlined assembly and reduced downtime. Together, the **SS5Y3-45FD-08U-C4-90718CDN** and **SY3140-5FU** form a cohesive control duo that excels in **automated assembly lines, robotic applications, packaging machinery, and other high-precision pneumatic systems** where rapid, repeatable, and energy-efficient actuation is essential. Their seamless compatibility ensures smooth pilot operation, minimal air leakage, and reliable performance over extended periods, making them a preferred choice for engineers and operators seeking a balance of performance, efficiency, and ease of maintenance. Whether deployed in a **high-speed production environment** or a **precision robotic cell**, this solenoid valve combination delivers the responsiveness and consistency required to meet the most demanding industrial automation challenges.

### **Pros and Cons of buying a SMC SS5Y3-45FD-08U-C4-90718CDN and SY3140-5FU 24V DC Solenoid Valves**

#### **Overview**

The **SMC SS5Y3-45FD-08U-C4-90718CDN** is a **5/2-way, normally closed (NC) pneumatic manifold valve** with a **0.5 4 bar (7 58 psi) operating range**, designed for general industrial automation. The **SY3140-5FU** is a **24V DC direct-acting solenoid valve** commonly paired with SMC pneumatic systems for control applications.

These components are widely used in **automation, packaging, material handling, and CNC machining** due to their reliability and compatibility with SMC s pneumatic systems. Below is a detailed breakdown of their advantages and disadvantages.

---

### **Pros**

#### **1. High Reliability and Durability**

- **Proven SMC Brand Quality**: SMC is a globally recognized leader in pneumatic automation, known for **long-lasting, low-maintenance components** with high resistance to wear and tear.

- **Robust Construction**: The **SS5Y3 manifold** is built with **stainless steel or high-grade aluminum**, ensuring durability in industrial environments with **dust, moisture, and temperature fluctuations**.

- **Sealed Design**: The **O-ring seals and precision-machined ports** minimize air leaks, improving efficiency and reducing energy waste.

#### **2. Compatibility and Integration**

- **Seamless Pairing with SMC Systems**: The **SS5Y3 manifold** is designed to work **exclusively with SMC solenoid valves** (including the **SY3140-5FU**), ensuring **optimal performance and minimal compatibility issues**.

- **Modular and Expandable**: The **5/2-way configuration** allows for **flexible control of pneumatic actuators**, making it suitable for **multi-axis applications** (e.g., clamping, positioning, or sorting systems).

- **Standardized Connectors**: Uses **SMC s proprietary quick-connect fittings**, reducing installation time and ensuring a **secure, leak-free connection**.

#### **3. Energy Efficiency**

- **Low Power Consumption**: The **SY3140-5FU 24V DC solenoid** operates efficiently, consuming **minimal electricity** ( 3 5W when active) compared to higher-voltage alternatives.

- **Fast Response Time**: The **direct-acting design** of the solenoid valve ensures **quick activation (typically

- **Pressure Regulation**: The **SS5Y3 manifold s built-in pressure compensation** helps maintain consistent airflow, reducing unnecessary energy use from over-pressurization.

#### **4. Precision and Control**

- **Tight Tolerances**: The **precision-machined ports and valves** ensure **minimal air leakage**, leading to **more accurate and repeatable pneumatic movements**.

- **Adjustable Flow Control**: Some SMC manifolds (including variants of this model) allow for **flow adjustment**, enabling **fine-tuning of actuator speed** without additional regulators.

- **Digital and Analog Control Options**: Compatible with **PLCs, CNC controls, and SMC s own controllers**, making it suitable for **complex automation setups**.

#### **5. Easy Installation and Maintenance**

- **Plug-and-Play Design**: The **SY3140-5FU solenoid** is **directly mountable** on the manifold with minimal wiring, reducing installation complexity.

- **Low Maintenance Requirements**: Few moving parts beyond the **solenoid coil and valve seat**, which have **long service lives** if properly lubricated (if applicable).

- **Quick Disassembly**: In case of failure, **individual components (e.g., solenoid, valve seat) can often be replaced** without replacing the entire manifold.

#### **6. Wide Operating Range**

- **Temperature Resistance**: Operates reliably in **0 C to 60 C (32 F to 140 F)**, making it suitable for **indoor and lightly controlled outdoor applications**.

- **Pressure Flexibility**: Handles **0.5 4 bar (7 58 psi) working pressures**, accommodating **light-duty to moderate pneumatic loads**.

- **Environmental Resistance**: Some SMC models in this series are **IP65-rated**, protecting against **dust and water splashes** in dirty or humid environments.

#### **7. Cost-Effective for Medium-Duty Applications**

- **Affordable Compared to High-End Brands**: While not the cheapest option, SMC offers **better value than premium brands like Festo or ASCO** for **standard industrial use**.

- **Long-Term Savings**: Reduced downtime and maintenance costs **offset initial purchasing expenses** over time.

- **Aftermarket Support**: Extensive **global distribution network** and **easy access to spare parts**, reducing repair delays.

#### **8. Safety Features**

- **Fail-Safe Operation**: The **normally closed (NC) design** ensures that in case of **power loss or solenoid failure**, the valve defaults to a **safe position** (e.g., releasing pressure).

- **Overload Protection**: The **SY3140-5FU solenoid** includes **built-in thermal protection** to prevent damage from prolonged use.

- **Leak-Proof Sealing**: Prevents **unintended air release**, reducing **hazardous situations** in automated machinery.

---

### **Cons**

#### **1. Limited High-Pressure and High-Flow Capabilities**

- **Not Suitable for Heavy-Duty Applications**: The **0.5 4 bar range** is **too low for high-force pneumatic systems** (e.g., hydraulic presses, heavy lifting).

- **Flow Restrictions**: The **internal port sizes** may **bottleneck airflow** in systems requiring **high CFM (cubic feet per minute)**, leading to **slow actuator speeds**.

- **No Built-In Pressure Reduction**: Unlike some competitors, this manifold **does not include a built-in regulator**, requiring an **additional pressure regulator** for precise control.

#### **2. Dependency on SMC s Ecosystem**

- **Limited Third-Party Compatibility**: While SMC components are **highly compatible with each other**, mixing with **non-SMC valves or manifolds** may lead to **performance issues or leaks**.

- **Proprietary Fittings**: The **quick-connect system is SMC-specific**, meaning **adapters may be needed** for other brands, adding **extra cost and complexity**.

- **Software and Control Limitations**: If using **non-SMC PLCs or controllers**, some **advanced features (e.g., diagnostic tools) may not be fully integrated**.

#### **3. Higher Initial Cost Than Basic Valves**

- **More Expensive Than Simple Solenoid Valves**: Compared to **basic 2/2-way valves**, this **5/2-way manifold solenoid combo** is **pricier**, especially for small-scale applications.

- **Potential Overkill for Simple Tasks**: If only **basic on/off control** is needed, a **single solenoid valve** (without a manifold) may suffice, reducing costs.

#### **4. Maintenance and Lubrication Requirements**

- **Internal Lubrication Needed in Some Models**: While many SMC valves are **self-lubricating**, **high-cycle applications** may require **periodic greasing** of seals to prevent wear.

- **Filter Maintenance**: Pneumatic systems **must have clean air filters** to prevent **debris from damaging the valve internals**, adding to **maintenance overhead**.

#### **5. Limited Customization**

- **Fixed Port Configuration**: The **SS5Y3 manifold has a standard 5/2-way layout**, meaning **custom port arrangements** (e.g., different valve sizes or positions) **cannot be modified**.

- **No Built-In Diagnostics**: Unlike some **smart valves (e.g., Festo s MPS)**, this model **does not offer built-in failure diagnostics**, making troubleshooting **more time-consuming**.

#### **6. Potential for Leaks Over Time**

- **O-Ring Wear**: With **high-cycle usage**, **O-rings may degrade**, leading to **small leaks** that **increase with age**.

- **Vibration Sensitivity**: In **high-vibration environments**, **loose connections or valve seats** may develop **micro-leaks**, requiring **tightening or replacement**.

#### **7. Limited Global Availability of Spare Parts**

- **Regional Stocking Issues**: While SMC has a **strong global presence**, **spare parts for older or discontinued models** may **not be readily available** in all regions.

- **Lead Times for Custom Orders**: If a **specific variant is out of stock**, **wait times for replacements** can be **several weeks**.

#### **8. Learning Curve for Non-SMC Users**

- **Unique Design Philosophy**: SMC s **modular approach** may be **less intuitive** for engineers familiar with **competitors like Festo or ASCO**, requiring **additional training**.

- **Documentation Complexity**: While SMC provides **detailed manuals**, **troubleshooting non-standard issues** can be **challenging without experience**.

---

### **Conclusion**

The **SMC SS5Y3-45FD-08U-C4-90718CDN manifold paired with the SY3140-5FU 24V DC solenoid valve** is a **high-quality, reliable choice** for **medium-duty pneumatic automation** where **precision, durability,

Details:

This item is Used and removed from a running operational piece of equipment. Includes the manifold, valves, fittings, DB-style connector, and DIN rail mounting bracket shown in photos. May show signs of cosmetic wear see photos. This assembly is commonly used for pneumatic automation, air cylinder control, machine control systems, packaging equipment, production and industrial panels.

MPN / Part Number: SS5Y3-45FD-08U-C4-90718CDN. This is a used unit removed from running operational equipment. Valve model: SY3140-5FU. Condition: Used.

Model: SS5Y3-45FD-08U. The assembly shows normal cosmetic wear from previous industrial use, including surface marks, label wear, dust, and light discoloration. voltage / Specs: 24VDC solenoid valves; supply pressure 0.15 0.7 Map. Type: Pneumatic Solenoid Valve Manifold Assembly.

part #: ss5y3-45fd-08u-c4-90718cdn prices

• $29.99-$149.99

specifications valvesplumbing:

• brand: Smc
• mpn: Ss5y3-45fd-08u-c4-90718cdn
• part type: Valve Manifold Solenoid
• valve operation: Solenoid
• suitable media: Air

shipping valvesplumbing:

• type: Calculated
• service: USPS Ground Advantage
• cost: $9.52
• carrier: USPS
• transit: 4-10 Days
• class: Standard

returns valvesplumbing:

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

offer valvesplumbing:

• availability: In Stock
• started: May 3, 2026
• options: Ship-to-home
• best offers: True
• quantity: 1
• sold: 0

general valvesplumbing:

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

seller valvesplumbing:

• # reviews: 4
• city: Quitman, Texas
• rating: 100.0%

payments valvesplumbing:

• wallet: Paypal
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• credit card: Discover

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