Detailed explanation of the differences between high pressure, medium pressure, and low pressure in hydraulic gear pumps

A、 Low pressure gear pump The pressure range of low-pressure gear pumps is usually between 0.6 and 6.3 MPa, suitable for low-pressure hydraulic systems such as agricultural machinery, ships, and automobiles. Low pressure gear pumps have a compact appearance, are easy to use, and have a relatively low price. However, they also have some limitations, such as not being able to withstand high pressure and high temperature environments, and need to be used in low-pressure scenarios.

B、 Medium pressure gear pump The pressure range of medium pressure gear pumps is usually between 16 and 63MPa, suitable for medium pressure hydraulic systems such as machine tools, molds, metallurgy, and power transmission and distribution. The medium pressure gear pump has a simple structure and moderate price, and is widely used in various industrial fields. However, due to its limited pressure range, it is not suitable for some high-pressure scenarios and needs to be selected based on actual conditions.

C、 high-pressure gear pump The pressure range of high-pressure gear pumps is usually between 100 and 160MPa, suitable for high-pressure hydraulic systems such as aircraft hydraulic systems, engineering machinery, and oilfield equipment. The high-pressure gear pump has a compact structure and high working efficiency, but it also has certain noise and leakage problems. Due to the special application scenarios of high-pressure hydraulic systems and the high requirements for gear pumps, the manufacturing and maintenance costs are relatively high, usually requiring professional technicians to operate. Gear pumps have different pressure ranges, applicable scenarios, and structural characteristics, and need to be evaluated based on actual situations during selection and use. In addition, gear pumps may encounter some common problems during operation, such as noise, leakage, and wear, which require timely maintenance and upkeep to ensure their normal use and extend their lifespan.

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