TianKang HongJi Ultra High Pressure Needle Valve with Actuator 20,000psi is a type of valves designed to control the flow of fluids (liquids or gases) in systems that operate at extremely high pressures-typically above 10,000 psi (690 bar) and can go up to 60,000 psi (4137 bar) or more, depending on the design and materials. These needle valve with actuator are commonly used in industries where precise flow control under high pressure is critical, such as oil and gas, chemical processing, aerospace, and other high-performance applications.