There are great differences between proportional control valves and two-way control valves in terms of principles and application scenarios. In general, their differences are mainly reflected in the following aspects:
1. Control accuracy: The proportional control valve achieves precise control through the input signal and can meet high-precision flow control, while the two-way control valve can only be adjusted manually and has relatively low control accuracy.
2. Applicable scenarios: The proportional control valve is suitable for high-precision flow control, such as medicine, food, chemical industry and other fields. The two-way control valve is mainly suitable for some simple flow control, such as some small factories.
3. Price difference: The price of the proportional control valve is relatively high, which is suitable for some scenarios with high requirements for flow control. The price of the two-way control valve is relatively low, which is suitable for some low-cost flow control scenarios.