Six common questions about hydraulic pumps

1. what is a hydraulic system?

The hydraulic system consists of many components. It consists of a tank, pumps, fluids, valves, motors, hoses, cylinders and filters. The reservoir contains the fluid prior to the pressurization process. The fluid is usually hydraulic oil, which is the blood of the entire system. The oil moves through the filter to help remove all contaminants.

Does the 2. hydraulic pump generate pressure?

Engineers sometimes argue about the pressure of the hydraulic pump. Does a hydraulic pump generate pressure? The pump generates a fluid flow, and when the fluid flow encounters any form of resistance, it generates pressure.

When the hydraulic pump is not connected to the system, no pressure will occur because there is no fluid blocking the fluid flow. Due to the lack of pressure, many engineers believe that the pump will not actually produce pressure. However, not all experts agree.

Some people believe that the hydraulic pump is a source of pressure, not a flowing fluid. As to which one is true, the debate is still open, but the most important thing is that the pump and the flow of fluid will eventually cause pressure.

What does 3. hydraulic pump rating mean?

The hydraulic pump has a pressure rating. The rating is the amount of pressure the pump can withstand before any damage or leakage occurs. Always make sure that the rated pressure of the hydraulic pump is lower than the pressure of the system to be used.

How is the efficiency of a 4. hydraulic pump measured?

The efficiency of a hydraulic pump is measured in several ways. One measure is volumetric efficiency. This refers to the actual flow divided by the theoretical flow. The flow meter measures the actual flow. The theoretical flow rate is obtained by multiplying the rotational speed of the pump by the rotational speed of the pump. Volumetric efficiency is one way to understand pump performance.

Mechanical efficiency is referred to as hydraulic efficiency. This refers to the theoretical torque required to operate the pump divided by the actual required torque.

Total efficiency refers to the product of mechanical efficiency and volumetric efficiency.

Is there a difference between 5. one-stage pump and two-stage pump?

The primary pump has a pressure and a flow rate. They are connected to crankshafts or industrial engines. The two-stage pump is installed on the engine to produce a large amount of fluid and make the cylinder in and out faster. With the help of resistance, another set of gears will generate increased pressure to make the system work. The amount of liquid will decrease.

What types of valves are included in 6. hydraulic pumps?

The pressure relief valve and the directional control valve are the two valves in the hydraulic pump. The directional control valve is responsible for the flow path in the system. The pressure relief valve prevents excessive system pressure by allowing air or bubbles to escape. If the excess pressure cannot be released, the efficiency of the pump will be minimized.

[Zhongyou Heavy Industry Hydraulic Machine Equipment Advantage]]

Zhongyou Heavy Industry takes fluid pressure forming technology as its core, and its leading products include: internal high pressure forming equipment, plate filling forming equipment, pipe parts hydroforming equipment, water expansion hydroforming equipment, multi-station connected hydraulic deep drawing equipment, four-column hydraulic press equipment, frame hydraulic press equipment, etc. It can design and manufacture special non-standard hydraulic equipment, non-standard oil cylinders, non-standard hydraulic systems and automatic transmission systems according to customer requirements.

The hydraulic press equipment produced by Zhongyou Heavy Industry is widely used in aerospace, nuclear power, petrochemical, auto parts, bicycle parts, hardware products, instrumentation, medical equipment, household appliances, household utensils, sanitary kitchenware and other manufacturing industries.