In flow and pressure control applications, the proportional valve serves as a critical actuator that executes control commands. Compared with traditional electromagnetic proportional valves, the core advantage of the Hilin SCPV servo proportional valve lies in its closed-loop servo control and high-precision position sensor, which fundamentally overcome the inherent issues…

Both belong to motor-driven proportional valves, sharing the same core operating principle—the motor drives the spool movement, and controlling the motor’s rotational position precisely adjusts the spool opening, thereby achieving proportional control of flow or pressure. However, the Hilintec SCPV significantly outperforms conventional stepper-motor proportional valves in the following four…

Understanding the Differences Among Rotameters, Soap Film Flowmeters, and Mass Flowmeters, and Choosing the Right Standard In the testing and application of positive‑displacement pumps such as diaphragm pumps, you may often encounter this question: under the same operating conditions, the same pump gives a notably higher reading with a rotameter,…

You may encounter this situation: you receive a diaphragm liquid pump, and the specification sheet states “Maximum output pressure: 0.3 MPa.” When you integrate it into your system, block the outlet, and take a measurement, the pressure gauge reading surges upward, easily exceeding the rated value and approaching 0.5 MPa…