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May I ask which manufacturers, domestic and foreign, produce high-quality flow switches?
Chengde Rehe Crony Instrument Co., Ltd
The SHLK thermal flow switch introduced by Shanghai Hongke Automation Instrument Co., Ltd. The SHLK series of thermal flow switches are based on the thermal principle. The enclosed probe contains two resistors: one of them is heated and serves as the sensing resistor, while the other remains unheated and functions as the reference resistor. As the medium flows, the heat from the heated resistor is carried away, causing a change in its resistance value. The difference between the values of these two resistors is used as a basis for determining the flow rate. The SHLK series of thermal flow switches feature a compact design, no moving parts, low maintenance requirements, and easy installation. One model can meet various pipe diameter requirements, the switch signal can be adjusted continuously, and there is very low pressure loss. Options include high-temperature, high-pressure, explosion-proof, and dual-contact (upper and lower limit alarm) types of flow switches. The SHLK series of thermal flow switches are designed for use with both gases and liquids; they can be applied in pneumatic and hydraulic systems. They are suitable for monitoring the interruption of flow in gases, flare gas, circulating water, heating systems, cutting fluids, and lubricants, as well as for providing protection against pump idling.
Kil China, experts in smart sensors for flow, pressure, temperature, level, and more
Mine, a mechanical switch – it works well.