Velocity4000; blade style round butterfly
A motor actuated device used to maintain an (adjustable) constant pressure difference between two rooms in a ship or between one room and outdoors. for spring loaded device see control unit, air pressure, spring loaded (66597).
NSN 5930-01-034-9796
NSN 5960-00-351-4821
NSN 6135-01-424-4940
NSN 5855-01-569-2994
NSN 5950-01-142-2634
NSN 6645-01-605-1485
NSN 5990-00-296-4825
NSN 5930-00-704-7444
NSN 5999-01-456-9079
NSN 5985-01-486-2110
NSN 5855-01-045-5932
NSN 5925-00-346-7991