-Energy efficient, economical pumps
-Built-in high-precision pressure compensation structure
-The oil ring is in a partial core state due to the spring force, and moves to the center automatically with the pressure.
automatically move to the center as the pressure rises, so that the discharge volume
is zero
-The relief valve and unloader valve in the circuit can be eliminated
-The input that increases proportionally to the pressure prevents Oil temperature rise with small volume
-New design for low noise and durability