Unbalanced type rotary seal
This seal has been formally adopted as US-1 under JSMEA (Japanese Marine Equipment Association). It uses a one-coil spring that is hardly affected by corrosion (electrolytic corrosion) and slurry. The O-ring for the rotating ring shaft has apertures to prevent following failure due to clogging. This seal can be used for cooling water pumps (industrial water, drain water and seawater pumps) in various industries.
Freshwater pump, seawater pump, lubricating oil pump, cargo pump
Pressure: 1.0 MPaG
Peripheral velocity: 15m/s
Nominal size: φ20 to φ130
Mechanical seals／Non-Cartridge mechanical seals