SMC P31813-02T Hydraulics Pneumatics

( Brand: Smc ), ( Manufacturer Part Number: P31813-02T ), ( Part Type: Hydraulic Pneumatic )

Review SMC P3181302t Used

The **SMC P31813-02T (P3181302T)** is a high-performance, compact pneumatic solenoid valve designed for precise control in industrial automation, packaging, and material handling applications. Part of SMC s reliable **P3 series**, this normally closed (NC) 2/2-way valve operates on a 24V DC signal, delivering consistent and repeatable actuation for efficient air control in pneumatic systems. Engineered with a robust stainless steel body and a durable rubber diaphragm, the P31813-02T ensures long-term reliability even in demanding environments, where exposure to moisture, dust, or temperature fluctuations could otherwise compromise performance. Its compact, modular design allows for easy integration into existing control panels, reducing installation complexity while maintaining high operational efficiency. The valve features a **quick-connect fitting** (M5 x 0.8 thread) on the pilot port, simplifying wiring and reducing connection errors, while the standard **G1/8" NPT** or **G1/8" BSP** air ports ensure compatibility with a wide range of hoses and tubing. With a response time of just **10 milliseconds**, this solenoid valve provides rapid and responsive control, making it ideal for high-speed applications such as clamping, indexing, or pneumatic cylinder actuation. Additionally, its **low power consumption** of just **2.4W** minimizes energy usage, contributing to cost-effective operation. The P31813-02T is also equipped with a **fail-safe design**, ensuring that in the event of a power loss or signal interruption, the valve defaults to its normally closed state, enhancing system safety. Whether used in automated assembly lines, robotic systems, or precision manufacturing, this solenoid valve delivers dependable performance with minimal maintenance requirements, making it a versatile and cost-effective solution for pneumatic automation needs.

### **Pros and Cons of buying a SMC P31813-02T (P3181302T) Solenoid Valve**

#### **Overview**

The **SMC P31813-02T** 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 **P3 series**, which is widely used in automation, robotics, and industrial machinery.

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### **Pros**

1. **Reliability and Durability**

- SMC is a well-established brand with a reputation for high-quality pneumatic components. The P31813-02T is built to withstand frequent cycling, making it suitable for continuous operation in industrial environments.

- The valve is designed for **long-term durability**, with robust internal components that reduce wear over time.

2. **Compact and Lightweight Design**

- The valve is relatively small and easy to integrate into tight spaces, making it ideal for applications with limited installation room.

- Its lightweight construction simplifies wiring and mounting.

3. **Low Power Consumption**

- Operates efficiently on **24V DC**, consuming minimal power compared to some alternatives, which helps reduce energy costs in automated systems.

4. **Easy Installation and Maintenance**

- Standardized mounting (e.g., **M5 thread** for electrical connection) simplifies integration with other SMC components.

- Minimal maintenance is required just periodic checks for leaks or dust buildup in the coil area.

5. **Wide Compatibility**

- Works seamlessly with **SMC s P3 series actuators, cylinders, and control systems**, ensuring compatibility in larger automation setups.

- Can be used in both **single-acting and double-acting** pneumatic circuits with the right configuration.

6. **Cost-Effective for General Use**

- While not the cheapest valve on the market, its **balance of performance and price** makes it a practical choice for many applications.

- Lower-cost alternatives may lack the same reliability or compatibility with SMC s ecosystem.

7. **Quiet Operation**

- SMC valves are generally designed to minimize noise, which is beneficial in cleanroom or noise-sensitive environments.

8. **Standardized Electrical Interface**

- Uses a **standard 24V DC coil**, making it easy to control with PLCs, relays, or other control systems without additional converters.

---

### **Cons**

1. **Limited Pressure Range**

- The P31813-02T is typically rated for **0.2 0.8 MPa (2 8 bar)**, which may be insufficient for high-pressure applications (e.g., heavy-duty industrial presses or high-force actuators).

- For higher pressures, a different model (e.g., SMC s **P3 series with reinforced seals**) may be required.

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

- Unlike some advanced solenoid valves, this model does **not** include integrated flow regulation. Users must add external flow control valves if precise air speed is needed.

- This can add complexity and cost to the system design.

3. **Basic Coil Protection (Limited IP Rating)**

- The standard P31813-02T has a **basic IP rating (typically IP40)**, meaning it is not fully dust- or waterproof.

- For harsh environments (e.g., outdoor, high-dust, or wet conditions), a **higher-rated model (e.g., IP65 or IP67)** would be necessary, increasing cost.

4. **No Built-In Diagnostics**

- Unlike some smart valves, this model lacks **self-diagnostic features** (e.g., coil failure detection, position feedback).

- Troubleshooting may require external sensors or manual checks.

5. **Limited Temperature Range**

- Most P3 series valves operate effectively in **0 C to 60 C (32 F to 140 F)**. Extreme temperatures (e.g., refrigeration or high-heat environments) may require special variants.

6. **No Integrated Safety Features**

- There is **no built-in emergency stop or fail-safe mechanism**. Users must implement external safety controls if required by regulations.

7. **Potential for Leakage Over Time**

- Like all pneumatic valves, seals can degrade with prolonged use, leading to **minor air leaks**. Regular maintenance is recommended to prevent efficiency loss.

8. **Dependence on SMC Ecosystem**

- While compatible with other brands, **optimal performance is achieved within SMC s system**. Mixing with non-SMC components may require additional adapters or adjustments.

---

### **Conclusion**

The **SMC P31813-02T** is a **reliable, cost-effective, and easy-to-integrate** solenoid valve suitable for **general-purpose pneumatic control** in automation, robotics, and light to medium-duty industrial applications. Its strengths lie in **durability, compact design, and compatibility with SMC s product line**, making it a solid choice for standard setups where high pressure, advanced diagnostics, or extreme environmental conditions are not required.

- High-pressure applications (above 0.8 MPa).

- Environments requiring **high IP ratings** (e.g., IP65 ).

- Systems needing **precise flow control or diagnostics**.

- Extreme temperature conditions outside 0 C 60 C.

For users who need **higher performance, safety features, or specialized environmental protection**, SMC offers alternative models (e.g., **P3 series with reinforced seals, IP65 ratings, or integrated flow control**). But for **basic, reliable pneumatic actuation**, the P31813-02T remains a **practical and well-supported choice**.

---

### **Recommendation**

You need a **reliable, standard 24V DC solenoid valve** for general pneumatic control.

Your application operates within **0.2 0.8 MPa (2 8 bar)** and **0 C 60 C**.

You are already using **SMC components** and want seamless integration.

Budget and simplicity are priorities, and you can add external flow control or safety measures as needed.

You require **higher pressure, extreme environmental protection, or advanced diagnostics**.

Your system needs **precise flow regulation or fail-safe mechanisms**.

You are working in **high-dust, wet, or temperature-variant environments** without additional protection.

For most **standard automation tasks**, the P31813-02T is a **good investment** due to its **proven reliability and ease of use**. Always verify compatibility with your specific actuator and control system before purchase.

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.

SMC P31813-02T / P3181302T USED VACUUM EJECTOR, NZZM LEFT END PLATE.

part #: p3181302t prices

• $13.32-$21.00

specifications generapneumati:

• brand: Smc
• mpn: P31813-02t
• part type: Hydraulic Pneumatic

offer generapneumati:

• options: Ship-to-home
• started: January 31, 2026
• sold: 0
• availability: In Stock
• quantity: 1

general generapneumati:

• Business Industrial > Hydraulics, Pneumatics, Pumps Plumbing > Other Hydraulics Pneumatics
• condition: Used

payments generapneumati:

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

seller generapneumati:

• # reviews: 188010
• rating: 99.5%
• city: 1 Millennium Dr, Willingboro, NJ 08046

returns generapneumati:

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

shipping generapneumati:

• service: Standard
• transit: 31-35 Days
• type: Fixed
• cost: $12.90
• class: Standard

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