... . Gate valves manufactured by our company are available in pressure ratings from 2000psi, 3000psi, 5000psi, 10000psi and 15000psi, ... gland allows replace of bearings and stem packing under line pressure.Simple structure and reliable sealing: New modern seal ... available in 2000psi, 3000psi, 5000psi, 10000psi and 15000psi working pressure, material classes from AA through FF, product specification levels ...