Lip seal Omni

metalcircularfor water

Omni seals are designed for vessels that don’t have the large shaft radial deflections typically required for naval ships. With fewer components, the non-floating Omni seals are significantly less expensive and easier to install and maintain. Leak Rate - Less than 473 mL/min, 0.125 GPM Shaft Deflection - Up to 10 mm High Angle/Vertical Operation - Yes Shock Approved - No - Self Centering - No HydroActive Technology Foam with embedded hydrogel particles is the key technology that enables our HydroActive™ seals. The foam is placed inside a lip seal that is not normally in contact with the shaft. The hydrogel particles absorb water during a flooding event, and, as the particles swell, the foam pushes the lip seal into contact with the shaft - creating a water tight seal. In summary, under normal operating conditions, no part of the seal is in contact with the shaft - allowing for unlimited shaft rotation speed without any seal wear. During a flooding event, the engaged lip seal still allows the shaft to rotate, allowing the stricken ship to reach a safe haven. Operational Need Watertight bulkheads are a key safety feature for any ship. Sealing around pump, propulsion or any other spinning shaft as they penetrate these interior bulkheads is challenging. Most of the products available either rotate with the shaft or are constantly in contact with the shaft. Radial and axial shaft motions, shaft run out, high shaft angles or vertical shafts, vibrations, poor shaft to bulkhead alignment and air pressure differentials cause these products to wear prematurely.This wear ultimately leads to a seal that will not work when it is needed or will be very expensive to maintain.