... gate non-rising-stem gate valves are available in temperature classes L, P, R, S, T, ... design.Rising stem slab gate valves are available in temperature classes L, P, R, S, T, and ... our company are widely used in the automatic control systems and remote control systems, featuring the hydraulically controlled opening ... 15000psiNominal size: 1-13/16″-4-1/16″ Working temperature: P UPR: 1-2PSL: 1-3MC: AA-FFOP ...