Hydraulic pump quality appraisal

Hydraulic pump is a hydraulic system power component that converts mechanical energy into hydraulic energy. It is driven by an engine or electric motor, sucks oil from the hydraulic tank, forms pressure oil, discharges it, and sends it to the actuator. The working principle of the
hydraulic pump is to rely on a certain force to make the oil flow from the oil suction pipe into the pump body. After pressure conversion, it flows out of the high-pressure oil pipe and reaches each hydraulic actuator, thereby transmitting energy. Hydraulic pumps can provide power for hydraulic systems and ensure the normal operation of various hydraulic equipment.
In the case of hydraulic pump quality appraisal, Zhongke Testing can provide hydraulic pump quality appraisal services.

1. Check the appearance of the hydraulic pump to ensure that it has no defects such as damage, deformation or surface wear.
2. Check parameters such as size, weight and nominal value of the hydraulic pump to ensure that it meets the design requirements.
3. Check the internal parts of the hydraulic pump, including hydraulic cylinders, pistons, valves and other components, to ensure that they are not worn or damaged.
4. Conduct performance tests, including flow, pressure, power and other indicators to ensure that the hydraulic pump has the required performance under normal use conditions.
5. Check the durability of the hydraulic pump, including service life, ability to withstand pressure and vibration, etc., to ensure that the hydraulic pump has stable performance during its service life.
6. Check the safety performance of the hydraulic pump, including measures to prevent leakage and explosion, to ensure safety when using the hydraulic pump.
7. Check the noise and vibration of the hydraulic pump to ensure that it does not have excessive noise and vibration under normal use conditions.

GB/T 7936-2012 Hydraulic pumps and motors No-load displacement determination method
GB/T 23253-2009 Hydraulic transmission Electronically controlled hydraulic pump Performance test method
GB/T 17485-1998 Hydraulic pumps, motors and overall transmission parameter definitions and letter symbols
GB/T 2353-2005 Dimension series and marking codes of mounting flanges and shaft extensions of hydraulic pumps and motors
GB/T 41980.1-2022 Hydraulic transmission - Determination method of pressure fluctuations in systems and components Part 1: Hydraulic pump (precision method)
GB/T 41980.2-2022 Hydraulic transmission - Determination method of pressure fluctuations in systems and components Part 2: Hydraulic pump (simplified method)
JB/T 4115-2022 Sintered bimetallic sheets for hydraulic pumps and hydraulic motor side plates
JB/T 13788-2020 Earthmoving machinery Hydraulic pump remanufacturing Technical specifications
JB/T 7041.2-2020 Hydraulic pump Part 2: Gear pump
JB/T 7938-2010 Hydraulic pump station Oil tank Nominal volume series
0JB/T 6105-2007 CNC machine tool hydraulic pump station Technical conditions
1CB/T 3754-1995 Marine hydraulic pump station technical conditions
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was entrusted by the court to undertake a judicial appraisal on whether the hydraulic pump involved in the case was genuine XXX brand.
appraisal analysis results: The
appraisal analysis expert group discussed the relevant information and on-site investigation of the hydraulic pump involved and made a comprehensive quality and technical analysis, and made the following suggestions and conclusions: The
hydraulic pump involved was confirmed to be a counterfeit product with the registered trademark of XXX Company. The product details are as follows: the hydraulic pump model specification is