HYDRAULIC PRESSURE RELIEF VALVE FOR LOADERS AND EXCAVATORS 

HYDRAULIC PRESSURE RELIEF VALVE FOR LOADERS AND EXCAVATORS/HYDRAULIC PRESSURE RELIEF VALVE FOR LOADERS/HYDRAULIC PRESSURE RELIEF VALVE FOR EXCAVATORS/EXCAVATORS HYDRAULIC PRESSURE RELIEF VALVE Function of relief valve: 1. Used to keep the pressure of hydraulic system constant.wheel loader liugong  As a relief valve, in a ration pump system, connected to the throttling element and the load. At this time the valve is normally open, often overflow, with the working mechanism of the different amount of oil, when the overflow of the valve is small, to section and balance the amount of oil into the hydraulic system, so that the pressure in the hydraulic system to maintain constant. But out of the overflow... 2. Used to prevent overload of hydraulic system. As a relief valve, the relief valve is normally closed to prevent system overload. When the valve pressure does not exceed a preset limit, the valve is closed without oil spill. When the valve pressure exceeds this limit, the valve…