
Article Needle Valves (Cfa7ebb)In a large high pressure line, the fluid dynamic effects from pulsations, impacts, and pressure drops can damage trim, stem packing, and actuators. Swing check valves are usually installed in conjunction with gate valves because they provide relatively free flow.However, needle valves are designed differently.Valves are known as those devices that can control the flow of fluids either they are in liquid or gaseous...