FIELD: space vehicles. SUBSTANCE: proposed device has main lines to deliver fuel from fuel tanks to control rocket engines with valves and check necks interconnected by bypass pipings. Each check neck has shutoff-control device made in form of cup manufactured of nonmagnetic material and freely turning relative to longitudinal axis with branch pipe manufactured of magnetic material. End face of branch pipe is lapped and fitted in ring slot made inside check neck body. Ring slot communicates with supply main lines through branch pipe with cup space. Control ring electromagnets are installed in each check neck in place of connection with fuel supply main lines. Shutoff valves are installed on each bypass pipeline. EFFECT: increased reliability and survivability of device and entire system of space craft engine plant operating on earth orbit. 6 dwg
