Unloading valve is an overflow valve with a two position two-way valve (usually an electromagnetic valve), which is used to set the main pressure of the system (oil pump) when not unloading. So, do you know the design methods for unloading valves?
In unloading valve engineering, multi way combination directional valves are commonly used, which are mostly manual. The unloading method often adopts a through control unloading valve for unloading. The main valve of the unloading valve can be divided into three types according to different fitting forms: three-stage concentric, two-stage concentric, and slide valve. The slide valve structure has low working pressure and low control pressure accuracy; Although the three-level concentric structure is mature and widely used, compared with the two-level concentric structure, it is not as sensitive in action, has the same specifications, and has the same stroke. The oil flow capacity of the two-level concentric structure is much greater than that of the three-level concentric structure; The two-stage concentric control pressure is stable and has good processing technology. The application prospects of the two-stage concentric control are broad.
The main design methods for unloading valves are as introduced above, and we should all design according to the above design methods.
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