4" Cast Carbon Steel Flanged Gate Valve - 150# - Raised FaceWarren Valve 4" Cast Carbon Steel Flanged Gate Valve 150# Raised Face Warren Valves line of Cast Carbon Steel Gate Valves are offered in classes 150, 300, 600, 900, and 1500. For oil and gas refineries and petrochemical plants, Warrens carbon steel valves are an economical and quality choice. Warren Valves are subject to rigorous quality inspections. Features Body: ASTM A216 WCB Bonnet: ASTM A216 WCB Wedge Disc: ASTM A217 CA15 Part No: 4V1155C 8RHG