API 6A Swing Check Valve, 2-1/16-4 IN, 2000-15000 PSI, AA-FF

Key Specifications / Features

The API 6A Swing Check Valve is designed for high-pressure applications, with sizes ranging from 2-1/16 to 4 inches and pressure ratings between 2000 and 15000 PSI. It meets PSL1 to PSL4 specifications and offers performance levels from PR1 to PR2, ensuring reliable performance across various operational conditions. With material classes ranging from AA to FF, this valve is ideal for critical applications in the oil and gas industry.

This API 6A Swing Check Valve is designed and manufactured in full compliance with API Spec 6A standards for wellhead and Christmas tree equipment. As a result, it is fully interchangeable with products manufactured both domestically and internationally that meet API Spec 6A specifications, or it can be integrated into complete systems.

This valve is a type of check valve that relies on the pressure of the working medium to achieve metal-to-metal sealing between the core and the body (seat). The sealing performance improves with higher medium pressure, ensuring reliable operation under pipeline pressure within the valve cavity.

The valve body is forged from alloy steel, offering exceptional mechanical properties to withstand high pressures safely and reliably.

The bonnet and body of the valve are connected using blind bolts, with sealing washers employed to seal the bonnet and interior wall. This design minimizes the space between components (with a target of zero space), which significantly reduces erosion of the bolts and bolt holes caused by abrasive media. Additionally, this design decreases the load on the bolts.

The sealing surfaces of both the valve core and body are built-up welded with carbide alloy, providing excellent wear and corrosion resistance. The valve core is made from sulfur-resistant material, and other components are produced using hardness-limited technology, making this valve suitable for environments containing H2S.