The piston pump 5MCY14-1B is a commonly used volumetric pump. It occupies an important position in the industrial field with its high efficiency, high precision and wide applicability. It is widely used in various occasions that require precise control of flow and pressure. This article will discuss in detail the working cycle of the pump and how to adjust its output flow and pressure to meet different process requirements.

The working cycle of the piston pump 5MCY14-1B mainly includes the oil suction stage and the oil pressure stage. The oil suction stage is when the piston moves outward, the space formed between the piston and the inner wall of the pump body gradually increases, and negative pressure is generated. Under the action of negative pressure, the one-way valve at the oil inlet opens, and the oil is sucked into the pump body from the oil tank or oil supply system.

The oil pressure stage means that when the piston moves inward, the space between the piston and the inner wall of the pump body decreases, and the pressure increases accordingly. When the pressure exceeds the opening pressure of the one-way valve at the oil outlet, the one-way valve opens and the oil is pushed into the system. This cycle is carried out synchronously or staggered on multiple plungers of the piston pump, thereby achieving continuous oil delivery.

The flow and pressure regulation of the piston pump is achieved by changing the stroke length of the piston or the angle of the swash plate of the pump. For variable displacement piston pumps such as 5MCY14-1B, the adjustment method is more flexible.

One of the adjustment methods is flow regulation. The stroke length of the piston is adjusted by controlling the swash plate angle, which in turn affects the amount of oil discharged in each cycle. Increasing the swash plate angle can increase the amount of oil discharged, and vice versa.

Another way is pressure regulation. By setting the opening pressure of the overflow valve, when the system pressure reaches the set value, the excess oil will be directed back to the tank to limit the maximum pressure of the system. In addition, there is usually an adjustable screw on the pump head. By rotating the screw, the preload inside the pump can be changed, which indirectly affects the output pressure of the pump.

In practical applications, the flow and pressure regulation of the piston pump 5MCY14-1B is very important. For example, when fast actions need to be performed, the flow of the pump can be increased to provide greater power; while in occasions where fine control is required, smoother operation can be achieved by reducing the flow. At the same time, by adjusting the pressure, it can be ensured that the system can maintain stable operation under different load conditions and avoid damage caused by overvoltage or undervoltage.
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