Manifold systems incorporate gate valves, check valves, chokes and actuators depending upon the applications and customer requirements. Mounted for ease of transport and height adjustment. Main Nominal sizes: (INCH) 2-1/16, 2-9/16, 3-1/8, 3-1/16, 4-1/16. Working pressures: (PSI) 2M, 3M, 5M, 10M, 15M