Qatar Petroleum   We have supplied Qatar Petroleum with a wide range of valves including:-   Non-Return valves - 4", 6" & 8", Class 300 and 900, CS bodies, chromium facing for seat + disc for NPS 8 and above. Globe and Gate valves - ranging from 2" to 6", Class 150 & 300, in stainless steel with Monel-400 trim and special face to face dimensions. Globe valves - 3" and 8", Class 900 and Class 2500, stainless steel bodies with Inconel 625 Trim, NACE and Fugitive Emission compliance.