2-1/2" Cast Carbon Steel Flanged Swing Check Valve - 150# - Raised FaceWarren Valve 2 1 2" Cast Carbon Steel Flanged Swing Check Valve 150# Raised Face The Warren Valve 2 1 2" Cast Carbon Steel Flanged Swing Check Valve is designed to prevent reverse flow in commercial and industrial piping systems. Built from durable cast carbon steel, this 150 lb class valve features a bolted cover and a full port swing disc that automatically opens with forward flow and closes when flow stops, helping protect pumps, compressors, and