China Factory for Hydraulic Press Power Unit - Online Exporter China Genuines Eaton Vickers Hydraulic Solenoid Directional Control Valve – Guorui

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We insist on offering premium quality creation with very good company concept, honest product sales along with the finest and fast assistance. it will bring you not only the premium quality item and huge profit, but the most significant is to occupy the endless market for China Valve, Hydraulic Monoblock Valves, Hydraulic Valve, Solenoid Valve, Since its foundation , the company keeps living up to the belief of “honest selling , best quality , people-orientation and benefits to customers. ” We have been doing everything to offer our customers with best services and best items . We promise that we are going to be responsible all the way to the end once our services begin.

Operating Principle

GDV80 series mono-block valve is an open centered, 3 position 4 way valve. When spool is in its neutral position, the flow from pump passes through the neutral passage to tank, with very low pressure drop. When one of the spool is moved to “1” or “2” position, the neutral passage is blocked. The flow from pump can only pass through load check to parallel passage, then, through the spool opening to work port “A” or “B”.

For multi-spool mono-block valve, if one of the spools is in “1” or “2” position,then, there is no flow in its down stream spool’s neutral passage. The main throttle occurs on the valve opening between bridge passage and spool. The operator can control more than one spools, but the magnitude of the flow rate for each controlled spool is dependent on the load.