Velocity-5500; blade styl-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 6610-00-280-6037
NSN 5925-01-035-7440
NSN 6240-01-068-5961
NSN 5935-01-010-3004
NSN 6145-00-144-0083
NSN 5950-01-559-4028
NSN 5910-00-699-6391
NSN 6650-01-472-3955
NSN 5930-01-224-8053
NSN 6220-01-545-1397
NSN 5835-01-629-2044
NSN 6220-01-237-2488