... are available in temperature classes L, P, R, S, T, and U specified in API 6A. Gate valves to be used ... are available in temperature classes L, P, R, S, T, and U specified in API 6A, or high temperature the 350 ... systems, featuring the hydraulically controlled opening and closing, stable performance and easy operation. Main specifications and technical parameters Rated pressure: 2000psi~15000psiNominal ...