Balanced/ Unbalanced Single Spring Seals are designed for handling liquids of varying contamination including slurries, sludges and crystallizing solutions. These Single Spring Seals can be offered with positive drive so that it will not be affected by the rotation of shaft direction. These Single Spring Seals work on the temperature range of 280 Degree Celsius. These Balanced/ Unbalanced Single Spring Seals have faces made out of carbon, Tungsten carbide, Silicon carbide, Cermic, Lecrolloy etc. And with elastomers like Viton, PTFE, EPDM.