Construction Machinery: Medium-Sized Excavator Volvo

Model	Hydraulic system overflow valve pressure
ECR88B	33000 kPa - 4786.2 lb / sq. inch
ECR88	30019.7 kPa - 4354 lb / sq. inch
ECR58	24014.4 kPa - 3483 lb / sq. inch
EC70	25000 kPa - 3625.9 lb / sq. inch
EC55B Pro	21994.3 kPa - 3190 lb / sq. inch
EC55B	21000 kPa - 3045.8 lb / sq. inch
EC55	21000 kPa - 3045.8 lb / sq. inch
EC50	25000 kPa - 3625.9 lb / sq. inch
EC45 Pro	26000 kPa - 3771 lb / sq. inch