Flygt Mechanical Seals FSU Seal-90 Replacement for: FSU-90 upper parts for flygt 3230, 3500, 3501 pump FSU-90 upper parts for flygt 3300, 3305, 3310, 3311, 3312, 3350, 3351, 3355, 3356, 3357 pump Features: Original Sweden design Big stock Wilo pumps ITT pumps Flygt Pump Model of Flygt H ydrocarbon P ump M echanical S eal FSU-90: 3230, 3300-91, 3300-181, 3300-280, 3300-980, 3305, 3310, 3311, 3312, 3350 3351, 3355, 3356, 3357, 3500, 3501, 3530, 3531, 3600, 3601, 3602, 7050, 7051 7055, 7060, 7061, 7076, 7556, 7080, 7115, 7570, 7585, 605, 615, 665, 670, 680 705, 715, 720, 721, 735, 745, 760, 765, 770, 775, 820, 840, 841, 860, 880, 881, 900 As one of the reliable china pump supplier in China, Hangzhou Sealcon Fluid Machinery Co., Ltd's products are sold globally and used in diverse industries. Our aim is to be one of the top mechanical seal manufacturers.