API 594 Type A Dual-Plate Check Valve, Lug, WCB, 4 IN, CL300

We are a specialized factory producing high-quality dual-plate check valves built to API 594 Type A standards. This 4-inch, 300 LB lug-type valve features a robust ASTM A216 WCB carbon steel body, paired with a corrosion-resistant A351 CF3M stainless steel disc for enhanced durability. The seal is crafted from A182 F316L for reliable, leak-tight performance. Designed with fire safety in mind, it meets API 6FA fire test standards, making it ideal for critical applications. Engineered for strength and safety, our check valves ensure dependable backflow prevention in demanding environments.