Conical, Floating-Piston Isolation Valve

A new valve concept consists of a solid piston floating in a medium to control a flowstream. Although the conical shape of the seat is a prominent feature of the valve, especially when the concept was first developed, the key feature of the valve is the balanced floating piston that acts as both the valve plug and the actuator. The origin of this design was based upon the need for large, extremely high-pressure valves to replace the ball valves currently used as supply valve tank pressurants in rocket testing.