Construction Machinery: Medium-Sized Excavator Sumitomo

Model	Hydraulic system overflow valve pressure
SH80-3B	33000 kPa - 4786.2 lb / sq. inch
SH75XU-3	29400 kPa - 4264.1 lb / sq. inch
SH75X-3B	29399.2 kPa - 4264 lb / sq. inch
SH75X-3	29400 kPa - 4264.1 lb / sq. inch
SH75U	27458.6 kPa - 3982.5 lb / sq. inch