The API 6D standard defines the requirements for pipeline valves, including specifications for numerous types of valves, from gate valves to check valves. A full port swing check valve designed according to API 6D meets specific industry standards and requirements for its design, materials, dimensions, and testing procedures.In the context of a swing check valve, "full port" typically means that the valve has a bore size that is the same as the pipeline it is installed in. This design minimizes pressure drop and flow resistance, allowing for efficient flow of fluids through the valve.The swing check valve operates by allowing flow in one direction while preventing backflow in the opposite direction. The swinging disc inside the valve opens in the direction of flow and closes to prevent reverse flow. This type of valve is commonly used in applications where backflow prevention is critical, such as in pipelines, refineries, and process plants.API 6D-compliant valves are designed and tested to withstand a range of operating pressures, temperatures, and fluid types, ensuring reliable and safe operation in demanding industrial environments.If you need more specific information about an API 6D full port swing check valve or have further questions, feel free to ask for more details.1. The structural length is short, and the structural length is only 1/4 to 1/8 of the traditional flange check valve; 2. Small size, light weight, and its weight is only 1/4 to 1/20 of the traditional micro-retarding check valve; 3. The valve disc closes quickly and the water hammer pressure is small; 4. Horizontal or vertical pipes can be used, easy to install; 5. Smooth flow channel, low fluid resistance; 6. Sensitive action, good sealing performance; 7. Short stroke of valve disc, small impact of closing valve; 8. Overall structure, simple and compact, beautiful shape; 9. Long service life and high reliability.As a professional API 6D Full Port Swing Check Valve and exporter, we promise to provide customers with high-quality after-sales service, including the following: 1.Provide product usage guidance and maintenance suggestions. 2.For failures caused by product quality problems, we promise to provide technical support and troubleshooting within the shortest possible time. 3.Except for damage caused by normal use, we provide free repair and replacement services. 4.We promise to respond quickly to customer service needs during the product warranty period. 5. We provide long-term technical support, online consulting and training services. Our goal is to provide customers with the best service experience and make customers' experience more pleasant and easy.

Product	API 6D Full Port Swing Check Valve
Nominal diameter	NPS 2”, 3”, 4”, 6”, 8” , 10” , 12” , 14”, 16”, 18”, 20” 24”, 28”, 32”, 36”, 40”, 48”
Nominal diameter	Class 150, 300, 600, 900, 1500, 2500.
End Connection	Flanged (RF, RTJ, FF), Welded.
Operation	Heavy Hammer, None
Materials	A216 WCB, WC6, WC9, A352 LCB, A351 CF8, CF8M, CF3, CF3M, A995 4A, A995 5A, A995 6A, Alloy 20, Monel, Inconel, Hastelloy, Aluminum Bronze and other special alloy.
	A105, LF2, F5, F11, F22, A182 F304 (L), F316 (L), F347, F321, F51, Alloy 20, Monel, Inconel, Hastelloy
Structure	Bolted Cover, Pressure Seal Cover
Design and Manufacturer	API 6D
Face to Face	ASME B16.10
End Connection	ASME B16.5 (RF & RTJ)
	ASME B16.25 (BW)
Test and Inspection	API 598
Other	NACE MR-0175, NACE MR-0103, ISO 15848, API624
Also available per	PT, UT, RT,MT.

During the opening and closing process of the forged steel globe valve, because the friction between the disc and the sealing surface of the valve body is smaller than that of the gate valve, it is wear-resistant. The opening or closing stroke of the valve stem is relatively short, and it has a very reliable cut-off function, and because the change of the valve seat port is proportional to the stroke of the valve disc, it is very suitable for the adjustment of the flow rate. Therefore, this type of valve is very suitable for cut-off or regulation and throttling.