The Sepco® HOS is a balanced, single spring, rotary seal capable of handling conditions much higher than conventional single spring designs. It was developed for use where lubricating products are handled that contain suspended solids as well as thermo-sensitive liquids that set up and harden at ambient temperatures.
Non-Clogging
The design of the HOS allows operation in liquids that contain suspended solids or thermo-sensitive products that have a tendency to impede operation as wear occurs.
Hydraulically Balanced
Hydraulic balancing is achieved internally allowing operation at high pressures. This also reduces hydraulic loads resulting in cooler operation, less power usage and extended reliability.
Metal Parts:
- Standard metal parts and spring: 316 SS
- Optional: Low expansion alloys (service over 400°F (205°C))
Face Materials:
- Standard: High quality chemical grade carbon-graphite, solid
- nickel bound tungsten carbide, and silicon carbide
O-ring Materials:
- Standard: Viton®, EPR and Aflas™
- Optional: Perfluorinated Elastomers
Operating Capabilities:
- Pressure: To 350 psig (24 bar g)
- Temperature (standard metal): -20° to 400°F (-29° to 205°C)
- Temperature (low expansion alloys and perfluorinated elastomer o-rings): -40 to 550°F (-40 to 288°C)
- Speeds: 5000 fpm (25 m/s)