UU4701 seals are unbalanced back-to-back two-end-faces stracture with internal-external flow. The kind of drive is that rubber bellows and shafts drive to rotating ring by fastening force from fixture. They are suitable to weak corrosion waster water with less than 4% content of solid particle in volume and therefore can be accessory of sump pumps.

OPERATING LIMITS
Operating limits: Pressure: 3 bar
Temperature: -20－+150℃
Speed: 10m/sec