Cryogenic valves are used to handle cryogenic fluids and test facility applications. The high-pressure cryogenic valve includes the following features. Coaxial flow poppet valve, actuation forces virtually independent of line pressure, spring loaded seal force to eliminated thermal stresses, seat of soft ptfe material, easy maintenance, cone shaped inlet poppet adaptable to any regulation behavior, electric servo motor for any predefined stroke, electric drive will hold the valve position in the event of power loss.16 pre-set positions defined with the variable parameters of: stroke, piston force, acceleration and deceleration and piston speed. A special application of a cryogenic valve is the cryogenic rocket valve. The valve design and heritage is based on existing flight proven cryogenic valves designed, developed and produced at the ottobrunn facility. These valves are used on the ariane 5 core stage for propellant and pressurant control, as well as main valves for cryogenic rocket engines, such as the hm-7 rocket engine. Performances- low pressure shut-off valve for fill and drain functions. Low-pressure shut-off valve in feed pipes. High-pressure valve as thrust chamber flow control valve. High-pressure valve as turbine bypass regulation valve. Design is in accordance to customer-specification for vco. Different types of cryogenic valves include cryogenic ball valve, cryogenic gate valve, cryogenic relief valve and cryogenic butterfly valve etc. A valve for a cryogenic-fluid device has a valve seat; separate from the valve housing and of a different material, secured to the housing by shrink fitting into a recess thereof. The readily replaceable seat has a high structural strength and preferably has been subjected to an anodizing treatment. The valve seat projects axially into the path of fluid passing through the nonclosable valve port. The valve housing is made of easily weldable materials, e.G., aluminum and aluminum alloys, and flanges for pipe connections are welded to the valve house.