Fuel Tank Components

WELDED STEEL DIAPHRAGM BELLOWS

• Purpose: A diaphragm bellows used in bellows-type pipeline valves extends the service life of valves by increasing the cyclic strength of a bellows unit, which is obtained by more even distribution of deformation load on a shaped corrugation. Moreover, a diaphragm bellows has a lower rigidity. It is a part of propellant overflow systems with liquid and gas separation for refueling in orbit of spacecraft. It is an integral part of the launch vehicle's fuel system. Its design accepts hydraulic shock loads at the time of starting the propulsion system.
• Year of release: 2012
• Guaranteed service life (years): 6
• Estimated production / delivery time (months): 2
• Flight qualification of the product: No
• Possibility to adapt the product to customer requirements: Yes

Welded steel diaphragm bellows are unique products consisting of annular diaphragms with desired pattern, connected in series between each other by welding on the outside and inside diameter.