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  3. NUMATICS NWB1391C-008-022

NUMATICS NWB1391C-008-022 Flow Control Fitting Npt Tube 3/8 8MM

Nwb1391c-008-022 Numatics Flow Control Fitting 3/8 Inch Npt 8mm Tube Diameter

( Brand: Numatics ), ( Manufacturer Part Number: NWB1391C-008-022 ), ( Part Type: Flow Control Fitting Tube )

Review NUMATICS Flow Control Fitting 3/8 Inch Npt 8mm Tube Diameter

The **Numatics NWB1391C-008-022** is a precision-engineered flow control fitting designed for pneumatic and hydraulic systems where accurate regulation of air or fluid flow is critical. This high-performance component combines durability with versatility, making it an ideal choice for applications requiring reliable pressure and flow modulation. The fitting features a **3/8-inch NPT (National Pipe Thread) male connection**, ensuring a secure and leak-proof interface with standard pneumatic tubing and fittings, while its **8mm tube port** accommodates flexible or rigid tubing with ease, minimizing pressure drop and maximizing efficiency. Engineered with Numatics signature quality, this fitting incorporates a robust **solenoid valve interface**, allowing seamless integration into automated systems where precise control is essential. Its compact yet sturdy design ensures minimal dead space, reducing energy loss and improving overall system responsiveness. The NWB1391C-008-022 is built to withstand demanding environments, offering resistance to corrosion, vibration, and temperature fluctuations, making it suitable for both industrial and commercial applications. Whether used in CNC machinery, robotic automation, or pneumatic actuators, this fitting delivers consistent performance, ensuring optimal flow regulation with minimal maintenance. Its modular design also allows for easy installation and replacement, reducing downtime and enhancing operational reliability. For engineers and technicians seeking a dependable flow control solution, the Numatics NWB1391C-008-022 represents a blend of precision engineering and practical functionality, delivering consistent results in even the most demanding pneumatic applications.

**Pros and Cons of buying a Numatics NWB1391C-008-022 Flow Control Fitting (3/8" NPT, 8mm Tube)**

### **Pros:**

1. **Compatibility and Versatility** The fitting is designed for use with Numatics pneumatic components, ensuring seamless integration with their valve manifolds, cylinders, and other actuators. The 3/8" NPT threading is a standard size in industrial pneumatics, making it widely compatible with other brands if needed.

2. **Precision Flow Control** This fitting is part of Numatics flow control series, which allows for adjustable or fixed flow rates. This is useful in applications requiring controlled air speed, such as in packaging, assembly, or clamping systems, where consistent pressure and flow are critical.

3. **Durability and Reliability** Numatics is a well-established brand known for producing high-quality pneumatic components. The NWB series is designed for industrial use, meaning it can withstand repeated cycles, pressure fluctuations, and environmental conditions (dust, moisture, etc.) without frequent failures.

4. **Easy Installation** The 8mm tube connection is a common size for pneumatic tubing, and the NPT threading ensures a secure, leak-proof connection when properly sealed with thread tape or sealant. The design is straightforward, reducing installation time and complexity.

5. **Cost-Effective for Industrial Use** While not the cheapest component on the market, it offers a balance between performance and price, especially when considering its longevity and compatibility with other Numatics parts. Bulk purchases or OEM discounts may further reduce costs.

6. **Maintenance-Friendly** Flow control fittings like this one are relatively easy to service. If adjustments are needed (e.g., flow rate calibration), they can often be done without specialized tools, reducing downtime.

7. **Support and Availability** Numatics has extensive documentation, technical support, and a wide distribution network. Parts are readily available through authorized distributors, reducing lead times for replacements or upgrades.

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### **Cons:**

1. **Brand Lock-In Risk** While the fitting is compatible with other brands due to standard threading, some proprietary features (e.g., specific mounting or connection methods) may limit flexibility if you later switch to non-Numatics components. However, the NPT and tube sizes mitigate this somewhat.

2. **Potential for Overkill** If your application doesn t require precise flow control (e.g., simple on/off pneumatic actuation), this fitting may be more expensive than a basic quick-connect or union fitting. In such cases, a simpler solution could suffice.

3. **Threading Challenges** Improper sealing of the NPT threads (e.g., forgetting to use thread sealant or tape) can lead to leaks. This requires careful installation to avoid issues, which may not be ideal for less experienced operators.

4. **Limited Adjustability (If Fixed)** Some flow control fittings in this series may have fixed flow rates. If you need variable flow, you ll need to ensure the specific model supports adjustment (check the product manual). Fixed versions may require additional components (e.g., separate flow regulators) for flexibility.

5. **Cost Compared to Alternatives** For very high-volume applications, generic or aftermarket flow control fittings from brands like Parker, Festo, or SMC may offer similar performance at a lower cost. However, these alternatives may lack Numatics integration benefits if you re already using their ecosystem.

6. **Space Constraints** Depending on your system layout, the size and orientation of this fitting may not fit in tight spaces. Always verify dimensions before purchasing.

7. **Dependence on Air Quality** Like all pneumatic components, this fitting is sensitive to air contamination (moisture, particles). If your system lacks proper filtration and drying, the fitting s performance and lifespan may be compromised.

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### **Conclusion:**

The Numatics NWB1391C-008-022 flow control fitting is a **high-quality, reliable choice** for industrial pneumatic applications where precise flow control, durability, and compatibility with Numatics ecosystem are priorities. It excels in controlled environments (e.g., manufacturing, automation) where consistency and longevity matter. However, it may not be the most cost-effective or flexible option for simple or high-volume applications where basic flow control suffices.

If you re already using Numatics components, this fitting integrates seamlessly and reduces system complexity. For non-Numatics systems or cost-sensitive projects, alternatives should be evaluated based on specific flow requirements and budget constraints.

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### **Recommendation:** **Buy this fitting if:**

- You are using or plan to use other Numatics pneumatic components (valves, cylinders, manifolds).

- Your application requires precise or adjustable flow control (e.g., controlled pneumatic clamping, packaging, or assembly).

- You prioritize durability, reliability, and long-term performance over short-term cost savings.

- Your system has proper air filtration and maintenance protocols in place.

**Consider alternatives if:**

- Your application only needs basic on/off pneumatic actuation without flow regulation.

- You re working with a tight budget and can find equally reliable generic flow control fittings (e.g., from SMC or Parker) at a lower cost.

- Your system layout or space constraints make this fitting impractical.

- You frequently switch between brands and need maximum compatibility flexibility.

**Final Note:** Always verify the exact model s specifications (e.g., whether it s adjustable or fixed flow) and ensure it matches your system s pressure and flow requirements. Consulting with a pneumatic specialist or reviewing Numatics technical documentation can help confirm the best fit for your application.

Details:

The cost of combined shipping depends on weight, location buyer and size box. Numatics NWB1391C-008-022 Flow Control Fitting, 3/8 NPT, 8mm Tube Diameter, 42.2mm Long, 20mm Hex, 7.6mm Thread length . UPS 2 Day Air AM.

These services include Item is sold as pictured. Prices for these options may differ from standard ground shipping. UPS Next Day AM. These services include: UPS 3 Day Select.

part #: nwb1391c008022 price

  • $19.99

specifications pneumativalv:

  • brand: Numatics
  • mpn: Nwb1391c-008-022
  • part type: Flow Control Fitting Tube

offer pneumativalv:

  • best offers: True
  • availability: In Stock
  • options: Ship-to-home
  • quantity: 4
  • started: April 27, 2026
  • sold: 0

general pneumativalv:

  • Hydraulics, Pneumatics, Pumps Plumbing > Pump Flow Controllers > Pneumatic Controllers
  • condition: Used

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  • cost: $10.95
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part type: flow control fitting tube,
category: business & industrial > hydraulics, pneumatics, pumps plumbing > pump flow controllers > pneumatic controllers, sku: 12179874421223881,
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1 offer $19.99 USD
  • Used. Offer #1 priced at $19.99 + $10.95 shipping estimate = $30.94* total. These services include Item is sold as pictured.+$10.95 shipping

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