PARKER 4M-V4AR-B Cpi Needle Valves Fittings Attachments 1/4 3/8

( Brand: Parker ), ( Manufacturer Part Number: 4M-V4AR-B ), ( Part Type: Valve Fitting ), ( End A Diameter: 1/4 In ), ( Body Material: Brass )

Review PARKER Huge Lot Of Cpi Needle Valves Brass 1/4 Inch And 3/8 Fittings Attachments Etc

The **Parker 4M-V4AR-B CPI Needle Valve** is a precision-engineered, high-performance flow control solution designed for demanding industrial, hydraulic, and pneumatic applications where fine-tuned regulation and reliability are paramount. Part of Parker Hannifin s renowned **4M Series**, this needle valve combines robust construction with advanced functionality, making it an ideal choice for systems requiring accurate flow modulation, backpressure control, or pressure regulation. The **V4AR-B model** features a **1/4-inch (NPT) male inlet** and a **3/8-inch (NPT) female outlet**, providing versatile compatibility with a wide range of piping and tubing configurations, while its **CPI (Clean Process Industry) designation** ensures compliance with stringent hygiene and cleanliness standards, making it suitable for food and beverage, pharmaceutical, and medical applications where contamination risks must be minimized.

Constructed from **high-grade stainless steel (typically 316 or 304)**, the valve body and internal components are engineered to withstand extreme temperatures, corrosive fluids, and high-pressure environments, often exceeding **3,000 PSI** in standard configurations. The **needle-type design** allows for precise, linear control of flow rates, enabling operators to achieve fine adjustments with minimal turbulence, which is critical in applications such as laboratory instrumentation, medical gas delivery systems, or precision hydraulic actuators. The **screw-type adjustment mechanism** ensures smooth, consistent operation, reducing the risk of sudden flow surges or valve stiction, while the **sealed stem** prevents leakage and maintains system integrity under fluctuating pressures.

For enhanced versatility, the **4M-V4AR-B** is equipped with **standard NPT fittings**, ensuring easy integration into existing piping systems without the need for additional adapters. The valve s **compact yet durable design** allows for installation in tight spaces, making it well-suited for retrofitting or new builds where space efficiency is a priority. Additionally, Parker s **CPI certification** includes features such as **smooth internal surfaces, easy-to-clean designs, and non-contaminating materials**, which are essential for industries where product purity is non-negotiable. Whether used in **hydraulic test stands, medical gas distribution systems, or cleanroom environments**, this needle valve delivers the reliability, precision, and corrosion resistance required to maintain optimal system performance over extended periods.

For applications demanding even greater flexibility, Parker offers optional **attachments and accessories**, including **solenoid actuators, manual levers, or electronic control modules**, which can be seamlessly integrated to automate flow regulation or enable remote operation. The valve s **quick-disconnect capabilities** further simplify maintenance and servicing, allowing for rapid replacement or cleaning without disrupting the entire system. With its **superior build quality, adaptability, and compliance with industry-leading standards**, the **Parker 4M-V4AR-B CPI Needle Valve** stands as a cornerstone component for engineers and operators seeking a balance of precision, durability, and cleanliness in their fluid control solutions.

**Pros and Cons of Buying Parker 4M-V4AR-B CPI Needle Valves (1/4" and 3/8" Fittings, Attachments)**

### **Pros**

1. **High Quality and Reliability** Parker Hannifin is a well-established manufacturer known for producing durable, precision-engineered components. The 4M-V4AR-B series is designed for industrial applications, offering consistent performance under demanding conditions.

2. **Precision Control** Needle valves of this type provide fine flow regulation, making them ideal for applications requiring gradual adjustments (e.g., pneumatic systems, hydraulic circuits, or gas control).

3. **Versatile Fitting Compatibility** The availability of 1/4" and 3/8" fittings (likely NPT or metric) ensures flexibility in system integration, allowing compatibility with various piping configurations.

4. **Durable Construction** The CPI (Corrosion-Proof Interior) designation suggests a coating or material treatment that enhances resistance to corrosion, extending the valve s lifespan in harsh environments.

5. **Easy Maintenance and Replacement** Parker s modular design often allows for straightforward disassembly and part replacement, reducing downtime for servicing.

6. **Industry Standard Compliance** These valves likely meet or exceed industry standards (e.g., ISO, ANSI, or API), ensuring reliability in regulated applications.

7. **Accessories and Attachments** The inclusion of attachments (e.g., handles, adapters, or mounting brackets) simplifies installation and operation, improving usability.

8. **Widely Available Support** Parker has extensive technical documentation, customer support, and a network of distributors, making troubleshooting and sourcing spare parts easier.

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### **Cons**

1. **Higher Upfront Cost** Compared to generic or lesser-known brands, Parker valves are typically more expensive, which may be a barrier for budget-conscious buyers or small-scale operations.

2. **Potential Overkill for Simple Applications** If the application does not require precise flow control or extreme durability, a more affordable valve may suffice without sacrificing performance.

3. **Specialized Knowledge Required** Proper installation, calibration, and maintenance may demand technical expertise, especially for users unfamiliar with Parker s specific product lines.

4. **Limited Customization** While the 4M-V4AR-B series offers standard configurations, custom modifications (e.g., unique port sizes or materials) may require additional lead time or custom orders, increasing costs.

5. **Compatibility Concerns** Ensure the valve s pressure, temperature, and media ratings align with your system s requirements. Mismatches could lead to premature failure or safety hazards.

6. **Dependence on Distributors** Purchasing directly from authorized dealers may limit price flexibility, though it guarantees authenticity and support.

7. **Potential for Overstocking** If the valve is not frequently used, excess inventory could tie up capital, especially if alternatives become available later.

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### **Conclusion**

The **Parker 4M-V4AR-B CPI needle valves** are a robust, high-performance choice for industrial applications requiring precise flow control, corrosion resistance, and long-term reliability. They are particularly well-suited for pneumatic, hydraulic, or gas control systems where quality and durability are critical. However, their higher cost and specialized nature may not justify the investment for low-volume or non-critical applications.

For most **industrial, commercial, or high-precision systems**, the benefits outweigh the drawbacks, making Parker a strong recommendation. For **budget-sensitive or simple applications**, evaluating alternatives (e.g., lower-cost brands or generic needle valves) may be prudent after verifying compatibility and performance requirements.

### **Recommendation**

- Your application demands precise flow regulation, corrosion resistance, or long-term reliability.

- You operate in an industrial or commercial setting where downtime and maintenance costs are significant.

- You value brand support, documentation, and ease of spare parts procurement.

- Your budget is constrained, and the application does not require Parker s level of precision.

- You lack the technical expertise to install or maintain the valves properly.

- A simpler, lower-cost valve meets your performance needs without compromising safety.

**Final Note:** Always verify the valve s specifications (pressure, temperature, media compatibility) against your system s requirements before purchasing. Consulting with a Parker distributor or technical representative can help ensure the right fit for your application.

Details:

This product is a huge lot of Parker CPI needle valves made brass with 1/4 and 3/8 fittings attachments. Ideal for use in hydraulics, pneumatic, pumps, and plumbing systems, this lot of needle valves offers versatility efficiency a range projects. The Parker brand ensures quality and reliability in the valves, while brass construction provides durability resistance to corrosion. These valves are designed with end A and B diameters of 1/4 inches, making them suitable for various industrial applications.

part #: 4mv4ar price

• $65.60

specifications valvesplumbing:

• brand: Parker
• mpn: 4m-v4ar-b
• part type: Valve Fitting
• end a diameter: 1/4 In
• body material: Brass

general valvesplumbing:

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

seller valvesplumbing:

• city: Brigham City, Utah
• rating: 99.8%
• # reviews: 3405

offer valvesplumbing:

• options: Ship-to-home
• sold: 0
• started: March 14, 2026
• availability: In Stock
• quantity: 1

returns valvesplumbing:

• policy: Returns Accepted
• time: 14 Days
• method: Money back
• paid by: Buyer

payments valvesplumbing:

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

shipping valvesplumbing:

• class: Standard
• transit: 4-9 Days
• type: Calculated
• cost: $15.20
• carrier: USPS
• service: USPS Ground Advantage

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