Wärtsilä Shipham Valves has extended its range of duplex and super duplex stainless steel valves to cover higher pressure ratings. The full product range of Wärtsilä Shipham Valves, including gate, globe, check, ball and butterfly valves, can now be specified in duplex and super duplex, with sizes ranging from 1/2 inch (15mm) to 48 inches (1,200mm) and pressure ratings up to ANSI 1,500 lbs. Shipham Valves is a Wärtsilä company and based in the U.K. The extended offering of duplex and super duplex valves meet the requirements of NORSOK M-630…