Hydraulic Meter In Circuit
In a hydraulic meter-in circuit flow control valve is installed in the pressure line. Before the fluid flows to the cylinder, it’s metered through this flow control valve, that’s way we call it meter-in. This action will reduce the flow from the pump to actuate cylinder, therefore the pump must send more fluid than is required by the cylinder to actuate, the excess hydraulic oil will returned to the tank through relief valve. The relief valve is typically set at slightly higher than the cylinder working pressure.
The hydraulic meter-in circuit is suitable for a positive resistance load such as hydraulic motor or hydraulic driven milling machine. We can use check valve and flow restrictor to reverse the cylinder but it can not control the return speed.
Categories: Hydraulic Circuits | Tags: meter-in | Leave a comment