Three major ranges : in steel, stainless steel, or brass. From 70 to 250 bar :needle valves, spherical ball valves, throttling valves, four way valves. From 250 to 1000 bar : revolving distributors, 2, 3 and 4 way valves. above 1000 bar : Four way valves. THP valves ( 1000 to 7000 bar).