api5000API 6B API 5000 (Class 1500) 1-1316″ to 26-34 Pressure Class API 2000 (Class 600) API 3000 (Class 900) s Material Class BB Raised Faced& CC DD & EE Bolts Holes 4 to 48 Face RingThe API 5000 system is desned for quantitative analysis of small molecules. This application involves measurement of specific molecular weht compounds, usually a drug or metabolite in