During the selection process for diaphragm pumps, choosing the correct diaphragm material is one of the core factors that determine whether the equipment can operate stably over the long term. As a critical moving component of the pump, the diaphragm must not only withstand millions of reciprocating flexing cycles but…

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,…