The 6" 150LB Flg Cast Steel Check A216/WCB, MRO1.75, API 598 by Matco Norca is designed for reliable backflow prevention in piping systems. This check valve features a 150LB pressure rating and is constructed from A216/WCB cast steel, ensuring durability and resistance to corrosion. With a 6" flange connection, it is easy to install in various industrial applications. This valve meets API 598 standards, ensuring high-quality performance and reliability. Ideal for water and wastewater applications, it provides peace of mind in preventing backflow.