Series RA The Serie RA valve is the Mecafrance back bone being the 3 piece ball valve for general industrial applications having an ISO top flange which allows easy quarter turn automation. This range is available from DN 8 to DN 250, in pressure ratings up to PN 100, and temperatures ranging from -40 to +450 ˚C, in funtion of the selected materials. Each RA valve features the swing-out design allowing easy maintenance on sealing components without taking the valve completely from the line. Butt weld, treaded, socket and double flanged ends are available from stock. Those valves can be easily equiped with full metal or 100% carbon seats, without having to modify other valve parts. Serie RA valves are over the years awarded with a large spread of international approvals, such as for example API 609/6D, BS 6755.