Key Specifications / Features
We are a leading bolted bonnet check valve factory in China, specializing in high-performance valves designed to meet API 6D and API 594 standards. Our check valves are manufactured with a durable aluminum bronze body and trim using ASTM B148 C95800 material, providing superior corrosion resistance and longevity in demanding environments. Available in large sizes up to 24 inches and rated for Class 300 LB, these valves ensure reliable backflow prevention and smooth flow control. Customers can choose between flat face (FF) or raised face (RF) flanged ends, offering flexibility, secure connections, and straightforward installation and maintenance.