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…

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…

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…

1. Low Speed Inevitably Reduces Torque OutputWhen reducing the speed of a brushless DC motor by lowering the PWM duty cycle, the electromagnetic torque it delivers decreases significantly. The system naturally enters a low-torque operating regime. The lower the speed,…

A: Vacuum filtration, also known as “suction filtration,” is an application that uses vacuum-generating equipment, such as vacuum pumps, to accelerate the separation of solid-liquid mixtures. The equipment used typically includes a Buchner funnel, a filtration flask, and a vacuum…

A: In the field of chemical analysis, gas washing typically involves bubbling gas through a washing bottle filled with liquid to remove impurities soluble in the liquid or to remove or convert specific components through reaction with the liquid. In…