TAJ ENTERPRISES Description. Actuated ball valves are rotating ball type pipe valves that come without manual turn handles to allow installation with an actuator. The valves are used together with an actuator device to automate valve opening and closing and therefore control plumbing fluid rates. Pneumatic actuators A rotary mechanical motion is required in a ball valve for a 90 degrees turn. Pneumatic actuator ball valves can be single-acting or double-acting. A single-acting pneumatic actuator uses a single compressed air input to turn the valve and a spring to return the valve to the normal position. pneumatic, valves , namurvalve , india , ballvalvd , indiasuppliers , globevalve , gatevalve, diaphramvalve, industrialvalves, joinus, brassballvalve , saballvalve, madeinindia , localforvocal