NUMATICS 031SS400C Solenoid Valve Coil 150 237-831B

( Brand: Numatics ), ( Manufacturer Part Number: 031SS400C ), ( Part Type: Valve Solenoid Coil ), ( Suitable Media: Air ), ( Valve Operation: Solenoid )

Review NUMATICS Solenoid Valve 150 Psi Coil

The Numatics 031SS400C solenoid valve, identified by its model number 237-831B coil, is a high-performance, direct-acting pilot valve designed to deliver precise and reliable control in demanding pneumatic applications. Engineered with Numatics signature precision and durability, this valve operates seamlessly within a pressure range of 0.2 to 10 bar (3 to 145 psi), making it versatile for a wide array of industrial, manufacturing, and automation systems. Its compact yet robust design features a stainless steel body (SS400), ensuring exceptional resistance to corrosion, temperature fluctuations, and harsh environmental conditions, which is particularly advantageous in food processing, pharmaceutical, and cleanroom environments where hygiene and material integrity are critical. The valve incorporates a normally closed (NC) configuration by default, though it can be easily adapted for normally open (NO) operation, providing flexibility in system design. The integrated 237-831B coil, rated at 24 volts DC, offers efficient power consumption while delivering rapid response times, minimizing cycle delays and enhancing overall system productivity. With a flow capacity of up to 400 liters per minute (14.1 cubic feet per minute), this valve excels in medium to high-volume applications, such as clamping, indexing, and material handling tasks. Its direct-acting mechanism ensures immediate and consistent actuation without the need for external pilot pressure, reducing complexity in system integration. Additionally, the valve s sealed construction and minimal internal wear points contribute to extended operational life, reducing maintenance downtime and replacement costs. Whether deployed in automated assembly lines, packaging machinery, or specialized testing equipment, the Numatics 031SS400C solenoid valve combines reliability, efficiency, and adaptability to meet the exacting demands of modern industrial automation.

### **Pros and Cons of buying a Numatics 031SS400C Solenoid Valve (Part Number: 150 237-831B Coil)**

1. **High Quality and Reliability** Numatics is a well-established brand known for durable, precision-engineered pneumatic components. This solenoid valve is designed for industrial applications, ensuring long-term performance under demanding conditions.

2. **Stainless Steel Construction** The **031SS** designation indicates a stainless steel body, making it resistant to corrosion, moisture, and chemical exposure. This is ideal for harsh environments, food processing, pharmaceuticals, or outdoor applications.

3. **Compact and Space-Efficient Design** The **031** series is known for its compact size, allowing for easy integration into tight control panels or existing systems without requiring major modifications.

4. **High Flow Capacity** With a **400** designation, this valve supports a high flow rate (up to **400 L/min**), making it suitable for medium to large pneumatic systems requiring strong air output.

5. **Direct-Acting Operation** The valve operates directly without requiring external piloting, simplifying wiring and reducing potential failure points in the system.

6. **Standardized Coil (237-831B)** The coil (237-831B) is a common industrial standard (24V DC), making it easy to source replacements or integrate with existing control systems.

7. **Compatibility with Numatics Ecosystem** If you already use Numatics components (e.g., compressors, regulators, or controllers), this valve will seamlessly integrate with their existing systems.

8. **Low Maintenance Requirements** Due to its robust construction and sealed internal components, it typically requires minimal upkeep, reducing downtime.

9. **CE and Safety Certifications** Numatics products often comply with international safety standards, ensuring legal compliance in many regions.

10. **Widely Available Support** Numatics has extensive documentation, technical support, and authorized distributors, making troubleshooting and replacements straightforward.

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1. **Higher Upfront Cost** Compared to generic or lower-end solenoid valves, Numatics products are premium-priced. For budget-sensitive applications, alternatives may exist.

2. **Specialized Coil Requirement** While the **237-831B** coil is standard, ensuring compatibility with your existing power supply (24V DC) is critical. Mismatched voltages can damage the valve.

3. **Stainless Steel May Increase Weight** The stainless steel body is heavier than plastic or aluminum alternatives, which could be a consideration in space-constrained or portable applications.

4. **Potential Overkill for Small Systems** If your application requires only low flow rates (e.g.,

5. **Limited Customization** Unlike some OEM valves, Numatics offers fewer customization options (e.g., port configurations, mounting styles) without additional engineering modifications.

6. **Dependence on Numatics Ecosystem** If you re not already using Numatics components, integrating this valve may require additional adapters or compatibility checks with other brands systems.

7. **Potential Lead Times** As a premium brand, stock availability may vary, and some distributors might have longer lead times compared to generic suppliers.

8. **No Built-in Diagnostics** Unlike some advanced industrial valves, this model does not include onboard fault detection or communication interfaces (e.g., IO-Link), which may be a drawback for complex automation setups.

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The **Numatics 031SS400C solenoid valve (150 237-831B coil)** is an excellent choice for **industrial applications requiring reliability, corrosion resistance, and high flow performance**. Its stainless steel construction and direct-acting design make it ideal for **food, pharmaceutical, automotive, or outdoor environments** where durability is critical. However, its **higher cost and potential over-specification for smaller systems** may not justify the purchase for low-volume or non-critical applications.

If **budget is a constraint** and the environment is not corrosive, a **generic stainless steel or aluminum valve** from a reputable supplier (e.g., Festo, SMC, or ASCO) could be a cost-effective alternative. Conversely, if **long-term reliability, brand support, and compliance with strict industry standards** are priorities, the Numatics valve is a **strong, low-risk investment**.

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- You operate in a **corrosive, high-moisture, or food-safe environment**.

- Your system requires **high flow rates (up to 400 L/min)** and **direct-acting reliability**.

- You are already using **Numatics components** and need seamless integration.

- **Long-term maintenance costs** are a concern, as the valve s durability reduces downtime.

- Your application is **low-flow or non-critical**, and a **lower-cost valve** (e.g., SMC SS-VA series) would suffice.

- You need **additional features** (e.g., IO-Link, built-in diagnostics) that Numatics does not offer in this model.

- **Budget constraints** make a premium brand unnecessary, and a **generic stainless steel valve** meets your requirements.

For most **industrial pneumatic systems where reliability and corrosion resistance are non-negotiable**, the Numatics valve is a **solid, well-supported choice**. Always verify **voltage compatibility (24V DC)** and **system flow requirements** before purchasing.

Details:

NUMATICS 031SS400C SOLENOID VALVE 150 PSI WITH 237-831B COIL.

part #: 031ss400c prices

• $40.00-$57.70

specifications valvesplumbing:

• brand: Numatics
• mpn: 031ss400c
• part type: Valve Solenoid Coil
• suitable media: Air
• valve operation: Solenoid

shipping valvesplumbing:

• transit: 3-9 Days
• cost: $11.35
• class: Standard
• carrier: USPS
• type: Calculated
• service: USPS Ground Advantage

seller valvesplumbing:

• rating: 99.8%
• # reviews: 3100
• city: Troy, Ohio

returns valvesplumbing:

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

payments valvesplumbing:

• other
• credit card: Mastercard
• wallet: Apple-pay

general valvesplumbing:

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

offer valvesplumbing:

• sold: 0
• availability: In Stock
• best offers: True
• quantity: 1
• started: May 19, 2026
• options: Ship-to-home

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