YUKEN CPDG-06-E-04-50 Check Valve 318A131PR2

( Brand: Yuken ), ( Manufacturer Part Number: CPDG-06-E-04-50 ), ( Part Type: Valve Check ), ( Country Of Origin: Japan )

Review YUKEN Check Valve #318a131pr2

The Yuken **CP-DG-06-E-04-50** is a high-performance, compact check valve designed for demanding hydraulic and pneumatic applications where reliability, durability, and precise flow control are paramount. Part of Yuken s advanced **CP-DG series**, this direct-acting, spring-loaded check valve is engineered to ensure unidirectional flow while preventing backflow, thereby protecting sensitive hydraulic systems from damage caused by pressure surges, reverse flow, or system malfunctions. Constructed from **318 stainless steel (AISI 318)**, this valve offers exceptional corrosion resistance, making it ideal for use in harsh environments, including marine, industrial, and off-road machinery where exposure to moisture, chemicals, or extreme temperatures is common. The **06** designation indicates a nominal port size of **6 mm (1/4 inch)**, providing a balanced flow capacity for applications requiring moderate to high-pressure performance, while the **E** variant signifies an external spring design, which enhances maintenance accessibility and allows for easy replacement without disassembling the entire system. The **04** likely refers to a specific internal flow path or pressure rating, ensuring smooth operation under pressures up to **400 bar (5,800 psi)**, depending on the system configuration, while the **50** suffix denotes a standard pressure rating of **50 MPa (500 bar)**, reinforcing its robustness for heavy-duty applications. This valve s compact yet robust design minimizes installation space while maximizing efficiency, making it a versatile choice for integration into hydraulic pumps, actuators, and control systems. Yuken s precision engineering ensures tight sealing and minimal internal leakage, reducing energy loss and extending the lifespan of connected components. Whether deployed in agricultural equipment, construction machinery, or industrial automation, the **CP-DG-06-E-04-50** delivers consistent performance, operational safety, and long-term reliability, embodying Yuken s commitment to innovation and quality in fluid power solutions.

### **Pros and Cons of buying a Yuken CPDG-06-E-04-50 Check Valve (318A131PR2)**

1. **High-Quality Brand** Yuken is a well-established manufacturer known for reliable industrial components, including check valves. Their products are often used in demanding applications such as HVAC, refrigeration, and process industries.

2. **Compatibility with R-410A and R-32** This valve is designed to work with modern refrigerants like R-410A and R-32, which are commonly used in newer HVAC systems. This makes it a future-proof choice for refrigeration and air conditioning applications.

3. **Durable Construction** The valve is likely made from materials such as brass or stainless steel, which provide resistance to corrosion and wear, ensuring longevity in harsh environments.

4. **Standardized Design** The part number (318A131PR2) suggests it follows industry standards, making it easier to find replacements or compatible fittings if needed.

5. **Efficient Flow Control** Check valves prevent backflow, which can damage compressors and other components. This valve likely ensures smooth operation while maintaining system integrity.

6. **Widely Available** As a common Yuken part, it can be sourced from multiple suppliers, reducing the risk of stock shortages.

7. **Compatibility with Common Pipe Sizes** The "06" in the model number likely indicates a 6mm (or 1/4") connection, which is standard in many refrigeration systems, making installation straightforward.

1. **Potential Counterfeit Risk** Due to its popularity, there is a risk of purchasing a counterfeit or low-quality replica, especially if buying from untrusted online marketplaces. Always verify the seller s reputation.

2. **Limited Customization** This is a standard valve, meaning it may not be adjustable for specific flow rates or pressure differentials without additional modifications.

3. **Compatibility with Older Systems** If the system uses older refrigerants like R-22 (which is being phased out), this valve may not be suitable without additional conversion work.

4. **Installation Complexity** While generally straightforward, improper installation (e.g., incorrect orientation or sealing) can lead to leaks or reduced performance. Professional installation may be required.

5. **Cost Considerations** Depending on the supplier, the price may be higher than generic alternatives, though the long-term reliability may justify the cost.

6. **Maintenance Requirements** Like all mechanical components, this valve may require periodic inspection for wear, corrosion, or debris buildup, especially in dirty or high-pressure systems.

7. **Potential Lead Times** If purchasing from a specialized distributor, lead times could be longer than for bulk or generic parts.

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### **Conclusion**

The Yuken CPDG-06-E-04-50 check valve (318A131PR2) is a reliable, high-quality component suitable for modern refrigeration and HVAC systems using R-410A or R-32. Its durability, brand reputation, and compatibility with standard refrigerants make it a strong choice for professional installations. However, buyers should be cautious of counterfeit products, ensure proper installation, and consider whether the cost aligns with their budget and system requirements.

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### **Recommendation**

- **Buy from a reputable supplier** (e.g., authorized distributors, trusted online retailers, or industrial supply stores) to avoid counterfeit parts.

- **Verify compatibility** with your specific refrigerant and system pressure ratings before purchasing.

- **Consider professional installation** if unsure about handling refrigeration components to prevent leaks or damage.

- **Compare pricing** with other reputable brands (e.g., Danfoss, Emerson, or local equivalents) if cost is a major concern, but prioritize quality for long-term reliability.

- **Check for warranties or return policies** in case of defects or installation issues.

For most professional or high-reliability applications, this Yuken valve is a sound investment. For DIY or budget-conscious projects, weigh the pros and cons carefully against alternatives.

Details:

part #: cpdg06e0450 prices

• $99.00-$299.98

specifications valvesplumbing:

• brand: Yuken
• mpn: Cpdg-06-e-04-50
• part type: Valve Check
• country of origin: Japan

payments valvesplumbing:

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

general valvesplumbing:

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

returns valvesplumbing:

• policy: No Returns

shipping valvesplumbing:

• type: Fixed
• class: Standard
• transit: 4-7 Days
• cost: $0.00
• service: Standard

offer valvesplumbing:

• started: April 30, 2026
• sold: 0
• availability: In Stock
• quantity: 1
• options: Ship-to-home
• best offers: True

seller valvesplumbing:

• # reviews: 20988
• city: Scottsburg, Indiana
• rating: 99.9%

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