The selection principles of freight elevator flow control valve are as follows:
Pressure: Changes in cargo lift's system pressure must be within the valve's rated pressure.
Flow: The flow through the flow control valve should be less than the rated flow of the valve.
Measurement range: The flow adjustment range of the flow control valve should be greater than the flow range required by the system. Special attention should be paid to the minimum stable flow rate of the selected valve when selecting the throttle valve and the speed regulating valve. The minimum stable speed requirement of the actuator.
The flow control valve used in the hydraulic system of the hydraulic lift includes a diverter valve and a one-way diverter valve.
In this system, the directional control valve mainly refers to the electromagnetic reversing valve, and the oil circuit is connected and disconnected by the reversing valve being in different positions.
The selection principle of directional control valve is as follows:
Pressure: The maximum pressure of the cargo lift hydraulic system should be lower than the rated pressure of the valve
Flow: The maximum flow through the directional control valve is generally not greater than the flow of the valve.
Spool valve function: The path form of the spool valve function when the reversing valve is in the neutral position.
Manipulation mode: choose the appropriate manipulation mode for the freight elevator, such as manual, electric, hydraulic, etc.
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