A105N Swing Check Valve API 602 3 inch 800 lb SW End
A105N Swing Check Valve API 602 3 inch 800 lb SW End
The A105N Swing Check Valve is an essential component in high-pressure fluid systems, designed to prevent backflow and protect equipment from damage. Built to API 602 standards with a 3-inch diameter and 800 lb pressure rating, this socket weld (SW) end valve delivers exceptional performance in demanding environments. Ideal for oil and gas processing, chemical manufacturing, power generation, and other industrial applications where reliability is non-negotiable.
Key Features & Benefits
- Premium Material Construction: Manufactured from A105N forged carbon steel, providing excellent strength, durability, and resistance to high-pressure and high-temperature conditions.
- API 602 Compliance: Fully adheres to API 602 standards for steel gate, globe, and check valves for refineries, petrochemical plants, and related facilities.
- High-Pressure Rating: 800 lb pressure class ensures reliable performance in demanding industrial environments.
- Socket Weld End Connection: Provides a secure, leak-tight joint that maintains system integrity under pressure.
- Swing Check Design: Offers lower pressure drop compared to other check valve types, with self-cleaning action during operation.
- Bolted Bonnet Construction: Facilitates easier maintenance and inspection when required.
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Our engineering team is available to help you select the right valve for your specific application requirements.
Technical Specifications
| Specification | Details |
| Product Name | A105N Swing Check Valve, API 602, 3 Inch, 800 LB, SW End |
| Body Material | ASTM A105N Forged Carbon Steel |
| Nominal Size | 3 Inch (DN80) |
| Pressure Class | 800 LB (PN130) |
| End Connection | Socket Weld (SW) |
| Design Standard | API 602 |
| Face to Face | Manufacturer Standard, ASME B16.10 |
| Testing Standard | API 598, ISO 5208 |
| Working Temperature | -29°C to 425°C |
| Port Type | Reducer Port |
| Suitable Media | Water, Natural Gas, Oil, and some corrosive liquids |
Available Material Options
| Material Code | Description | Application |
| ASTM A105N | Carbon Steel | General purpose, oil & gas, power generation |
| ASTM A182 F304/F304L | Stainless Steel | Corrosive environments, chemical processing |
| ASTM A182 F316/F316L | Stainless Steel | Highly corrosive environments, marine applications |
| ASTM A350 LF2 | Low-Temperature Carbon Steel | Low-temperature services, cryogenic applications |
| ASTM A182 F11/F22 | Alloy Steel | High-temperature services, power plants |
| ASTM A182 F51 | Duplex Stainless Steel | Highly corrosive environments with mechanical stress |
Applications
Oil & Gas Processing
Prevents backflow in high-pressure pipelines, protecting pumps and compressors in refineries and processing facilities. Ensures one-way flow in critical transfer lines and prevents contamination between process streams.
Chemical Manufacturing
Maintains process integrity in chemical production lines by preventing reverse flow of reactive materials. The forged steel construction provides excellent resistance to a wide range of chemical media under high pressure.
Power Generation
Protects critical equipment in steam and feedwater systems. Prevents water hammer in high-pressure steam lines and protects turbines and pumps from damage due to reverse flow conditions.
Mining Operations
Ensures reliable operation in slurry transport systems and high-pressure water lines. The robust construction withstands abrasive media while maintaining system integrity in demanding environments.
Water Treatment
Prevents backflow in high-pressure water distribution systems and protects pumps from reverse flow damage. Maintains system integrity in critical water processing applications where reliability is essential.
What is the primary function of a swing check valve?
A swing check valve automatically prevents reverse flow in a piping system. When flow moves in the intended direction, the disc swings open to allow passage. When flow attempts to reverse, pressure pushes the disc against the seat, creating a seal that prevents backflow. This protects equipment from damage and maintains system integrity.
Why choose a socket weld (SW) end connection?
Socket weld connections provide superior joint strength and leak resistance compared to threaded connections, especially in high-pressure applications. They create a smooth internal flow path that reduces turbulence and pressure drop. For critical services where joint integrity is paramount, socket weld connections offer excellent reliability and safety.
Why Choose Our A105N Swing Check Valve
Advantages
- Manufactured to strict API 602 standards ensuring quality and reliability
- Forged steel construction provides superior strength and pressure containment
- Comprehensive testing to API 598 standards for guaranteed performance
- Lower pressure drop design improves system efficiency
- Self-cleaning action during normal operation reduces maintenance
- Wide temperature range capability (-29°C to 425°C)
Ready to Order Your A105N Swing Check Valve?
Our valves are manufactured to the highest standards with a production capacity of 6000 tons per year. Standard delivery time is 30 days with shipping available worldwide.
“The A105N Swing Check Valves we installed in our refinery’s high-pressure system have performed flawlessly for over three years in continuous operation. Their reliability has significantly reduced our maintenance downtime and associated costs.”
Ordering Information
| Parameter | Details |
| Delivery Time | 30 Days Standard (Expedited options available) |
| Packaging | Standard Exporting Plywood Case |
| Shipping Terms | EXW, FOB, CFR, CIF (per customer requirement) |
| Payment Terms | 30% prepayment, 70% balance before shipping |
| Minimum Order Quantity | 10 PCS/size |
| Certification | API 602, Material Certificates, Test Reports |
Need Immediate Assistance?
Contact our technical sales team directly for expedited quotes and technical support.
Conclusion
The A105N Swing Check Valve API 602 3 inch 800 lb SW End represents the pinnacle of industrial valve engineering for high-pressure applications. With its forged steel construction, compliance with rigorous API standards, and versatile performance across multiple industries, this valve delivers exceptional reliability and longevity even in the most demanding environments.
Our commitment to quality manufacturing, comprehensive testing, and customer satisfaction ensures that you receive a product that not only meets but exceeds industry expectations. Whether for oil and gas processing, chemical manufacturing, power generation, or other critical applications, our A105N Swing Check Valve provides the performance and peace of mind that industrial professionals demand.
