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 5965-00-147-3070
NSN 6685-00-912-9151
NSN 6610-00-845-7642
NSN 6145-01-212-4777
NSN 6145-01-279-1264
NSN 5960-00-485-0601
NSN 5965-00-964-1756
NSN 6320-00-036-3688
NSN 5960-00-458-7080
NSN 4140-01-574-3955
NSN 6110-00-788-1521
NSN 5950-01-206-4800