General Series
It can be used for water, hot oil, and grinding fluid. The maximum pressure is 50 kilograms and the maximum rotational speed is 3500 revolutions per minute. It can be divided into N type and D type.
N-type (Standard Type) - Graphite seal, used for intermittent supply of filtered water, hot oil, and saturated steam.
D type (heavy-duty type) - Tungsten carbide seal, used for sealing in poor-quality filtered water and grinding fluids.