Key Specifications / Features
As a leading factory in China for ASTM A890 4A check valves, we specialize in dual plate designs for 6-inch (DN150) valves with a Class 300 LB pressure rating. Our valves conform to API 594 and API 6D standards and are crafted from duplex stainless steel for enhanced durability and corrosion resistance. Featuring double flanged ends, these check valves are engineered for optimal performance. The carefully designed plate size and shape ensure a lightweight construction with excellent flow efficiency, minimal pressure loss, and rapid operation. Additionally, our valves provide superior sealing performance even under low pressure conditions, making them ideal for a variety of demanding industrial applications.