Construction Machinery: Medium-Sized Excavator IHI

Model	Hydraulic system overflow valve pressure
80NX-3	24476.4 kPa - 3550 lb / sq. inch
70Z	24510.8 kPa - 3555 lb / sq. inch
65NX	24497.1 kPa - 3553 lb / sq. inch
55N-2	20601.5 kPa - 2988 lb / sq. inch
45NX	20615.3 kPa - 2990 lb / sq. inch