2FRM type speed regulating valve is a two-way Flow Control Valve, which is composed of a Pressure Reducing Valve and a Throttle Valve in series. After the oil flow enters the speed regulating valve, it is firstly decompressed by the pressure reducing valve, and then throttled by the throttle valve. Since the pressure reducing valve compensates the throttle valve, the flow rate of the speed regulating valve is not affected by the load change and remains stable. At the same time, the throttling window is designed in a thin blade shape, and the flow rate is slightly affected by temperature changes. When the speed regulating valve is connected in parallel with the one-way valve, the oil flow can flow back in reverse.
The Z4S rectifier plate is installed under the speed control valve, which can stabilize the flow in both directions through the speed control valve.
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