ASCO NUMATICS 240-211 Valves Manifolds

( Brand: Asco Numatics ), ( Manufacturer Part Number: 240-211 ), ( Part Type: Valve Manifold )

Review ASCO NUMATICS 240211 Used

The **ASCO Numatics 240-211 (240211)** is a high-performance, normally closed, spring-return pneumatic solenoid valve designed for reliable and efficient control in industrial automation and fluid handling applications. Part of ASCO s trusted **240 Series**, this valve is engineered to deliver precise actuation with minimal response time, making it ideal for demanding environments where consistent performance is critical. Constructed from durable materials, including a robust stainless steel or brass body (depending on the variant), the 240-211 is built to withstand harsh conditions, including exposure to moisture, dust, and temperature fluctuations, ensuring long-term reliability in both clean and contaminated air systems. Its compact yet sturdy design allows for easy integration into existing pneumatic circuits, whether in manufacturing plants, packaging machinery, or automated assembly lines.

The valve operates on a **24 VDC or 110/240 VAC** control signal, providing flexibility for compatibility with a wide range of PLCs, control panels, and automation systems. Its **normally closed (NC) configuration** ensures that air flow is blocked until an electrical signal is applied, enhancing safety by preventing unintended activation. The internal pilot design ensures smooth and silent operation, reducing wear and tear on connected components while maintaining consistent flow rates. With a **standard port size of inch (G/8)**, the 240-211 is well-suited for medium-flow applications, delivering efficient air control without excessive pressure drop. Its **direct-acting mechanism** eliminates the need for external pilot valves, simplifying installation and reducing system complexity.

For enhanced durability, the valve features **sealed internal components**, protecting against leaks and contamination, while its **quick-disconnect fittings** allow for rapid assembly and disassembly, minimizing downtime during maintenance. The 240-211 also incorporates **ASCO s proprietary sealing technology**, ensuring tight shutoff and minimal air leakage, which is essential for maintaining system efficiency and energy savings. Whether used in pneumatic clamping systems, cylinder actuation, or fluid metering applications, this valve provides a dependable solution for precise control with minimal maintenance requirements. Its robust construction, combined with ASCO s reputation for quality engineering, makes the 240-211 a trusted choice for engineers and operators seeking a reliable, long-lasting pneumatic control component.

### **ASCO Numatics 240-211 (240211) Solenoid Valve: Pros and Cons**

#### **Overview**

The **ASCO Numatics 240-211 (240211)** is a **2-way, normally closed (NC), direct-acting, pilot-operated solenoid valve** commonly used in pneumatic systems for controlling air flow. It operates on **24V DC** and is designed for general industrial applications, including automation, packaging, and material handling.

---

### **Pros**

1. **Reliability and Durability**

- Built with **high-quality materials**, including brass and stainless steel components, ensuring long-term performance in industrial environments.

- **Pilot-operated design** reduces power consumption compared to fully direct-acting valves, extending the lifespan of the solenoid coil.

- **Sealed internal components** protect against dust, moisture, and contaminants, making it suitable for dirty or harsh conditions.

2. **Energy Efficiency**

- The **pilot-operated mechanism** requires less power to activate, reducing heat generation and electrical load compared to fully direct-acting valves.

- **Low power consumption** (typically 3-5W when energized) makes it cost-effective for continuous operation.

3. **Compact and Versatile Mounting**

- **Small footprint** allows for easy integration into tight spaces.

- **Multiple mounting options** (flanged, threaded, or pipe connections) provide flexibility for different system setups.

- **Standardized size** (1/4" NPT or G 1/8") ensures compatibility with common pneumatic tubing and fittings.

4. **Fast Response Time**

- **Direct-acting pilot** ensures quick activation (typically **

- **Low hysteresis** means consistent performance even with frequent cycling.

5. **Low Maintenance**

- **Few moving parts** reduce wear and tear, lowering maintenance requirements.

- **Internal filters** help prevent debris from damaging the valve internals, though external filtration is still recommended for optimal performance.

6. **Wide Compatibility**

- Works with **compressed air (0.2 1.0 MPa / 3 15 PSI)** and is compatible with most standard pneumatic actuators.

- **Universal voltage options** (24V DC is standard, but similar models may support 12V or 24V AC/DC depending on variant).

7. **Cost-Effective**

- **Affordable compared to high-end industrial valves** while maintaining reliability.

- **Long lifespan** reduces replacement costs over time.

8. **Easy Installation and Replacement**

- **Simple wiring** (2-wire DC operation) makes installation straightforward.

- **Modular design** allows for easy replacement if the valve fails.

---

### **Cons**

1. **Limited Pressure Range**

- **Maximum working pressure is 1.0 MPa (15 PSI)**. For higher pressures, a different model (e.g., 240-215 for 1.6 MPa / 23 PSI) may be required.

- Not suitable for **high-pressure applications** (e.g., heavy-duty machining or hydraulic systems).

2. **Voltage Sensitivity**

- **24V DC operation** may require a stable power supply. Voltage fluctuations can affect performance or lifespan.

- **Not suitable for AC operation** unless a specific variant is selected (most 240-series valves are DC-only).

3. **Not Ideal for Extreme Environments**

- While **IP65-rated** (dust and water-resistant), it is **not explosion-proof** and should not be used in **hazardous locations** (e.g., chemical plants, mining) without additional protection.

- **Temperature range is typically -10 C to 60 C (-14 F to 140 F)**. Extreme temperatures may affect performance.

4. **Potential for Leakage Over Time**

- Like all pneumatic valves, **seals degrade with age**, potentially leading to **minor air leaks** if not maintained.

- Requires **periodic inspection** of seals and O-rings.

5. **Limited Flow Rate**

- **Maximum flow rate is 200 L/min (7 CFM)**. For high-flow applications, larger valves (e.g., 240-221) may be needed.

- Not suitable for **high-volume air distribution** in large systems.

6. **No Built-In Diagnostics**

- Unlike some advanced industrial valves, this model **does not provide feedback** (e.g., position sensing) unless paired with external sensors.

- **Manual inspection** is required to verify operation.

7. **Compatibility with Lubricated Air**

- While it can handle **lubricated air**, **excessive oil buildup** can clog internal passages, reducing efficiency.

- **External filtration** is recommended for optimal performance.

8. **Limited Customization**

- **Standardized design** means limited options for **custom mounting, port sizes, or special coatings**.

- For specialized applications, alternative brands (e.g., Festo, SMC) may offer more flexibility.

---

### **Conclusion**

The **ASCO Numatics 240-211 (240211)** is a **reliable, cost-effective, and efficient** solenoid valve well-suited for **general-purpose pneumatic applications** where **moderate pressure, compact size, and low maintenance** are priorities. Its **pilot-operated design** enhances durability and energy efficiency, making it a **popular choice for automation, packaging, and light industrial use**.

However, it is **not ideal for high-pressure, high-flow, or extreme-environment applications**. Users should ensure their system s **pressure, voltage, and air quality** align with the valve s specifications to maximize performance and lifespan.

---

### **Recommendation**

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

Your system operates at ** 1.0 MPa (15 PSI)** with **clean or lightly lubricated air**.

You require a **compact, easy-to-install valve** with **minimal maintenance**.

Your application involves **moderate flow rates ( 200 L/min)** and **frequent cycling**.

You need **higher pressure (>1.0 MPa)** Upgrade to **240-215 or 240-221**.

Your system requires **high flow rates (>200 L/min)** Choose a **larger valve (e.g., 240-221)**.

You operate in **extreme temperatures or hazardous environments** Select a **specialized valve (e.g., explosion-proof, high-temperature rated)**.

You need **position feedback or advanced diagnostics** Opt for **smart valves (e.g., Festo MPYE, SMC VPP)**.

Your power supply is **unstable or AC-based** Verify compatibility or use a **voltage regulator**.

For **most standard pneumatic applications**, the **ASCO 240-211 is an excellent choice** due to its **balance of performance, cost, and reliability**. However, always **match the valve to your specific system requirements** to ensure optimal operation.

Details:

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. Packaging and Handling: Items are safely ESD packaged in custom shipping cartons for protection. Sells new and surplus product develops channels to purchase such.

ASCO 240-211 / 240211 USED DIGITAL I/O MODULE, G3 ELECTRONICS SERIES, 8 X PNP INPUTS, OUTPUT, WITH 4-PIN M12 SPEEDCON FEMALE CONNECTORS.

part #: 240211 price

• $441.91

specifications valvesplumbing:

• brand: Asco Numatics
• mpn: 240-211
• part type: Valve Manifold

shipping valvesplumbing:

• transit: 30-35 Days
• class: Standard
• service: Standard
• cost: $12.90
• type: Fixed

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• rating: 99.5%
• city: 1 Millennium Dr, Willingboro, NJ 08046
• # reviews: 190670

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

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