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What are hydrostatic pressure testing machines’ hydraulic pressure failures?

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What are hydrostatic pressure testing machines’ hydraulic pressure failures?

A hydrostatic pressure testing machine, to meet the different test pressure requirements, the test head adopts the two ends simultaneously moving, one end moving, one end fixed two types of propulsion. Both ends of the screw nut vice, one end of the oil cylinder, the other end of the screw nut vice, both ends of the oil cylinder three kinds of structure to achieve the test head advancement. The combination of sensor monitoring and computer control is used to control the propulsion speed and mode, so that the test head is oriented to the most optimal control, which effectively reduces the damage to the seal by the pipe hoop and pipe joint. In the process of using the pressure testing equipment for plastic pipes, it is possible to encounter malfunctions, and the following is an introduction to the analysis and solution of hydraulic malfunctions.


Here is the content list:

l Water pressure does not reach the test pressure

l Water pressure rises slowly


Water pressure does not reach the test pressure

Water pressure and oil pressure have a certain value, but the water pressure does not reach the test value. There are two main phenomena, one is the plastic pipe ends do not spray water, no other leakage, which is mainly the problem of the high-pressure water pump. There is also a hydrostatic pressure testing machine plastic pipe spraying water at both ends, there is no other leakage, which may be sealing the ends of the plastic pipe components are damaged or the master cylinder pressure value is small, resulting in insufficient pressure to seal the ends of the steel pipe.

Measures to solve: For the problem of not spraying water at both ends, correct maintenance must be carried out by the maintenance manual of the high-pressure pump. For the problem of water spraying at both ends, if it is the problem of sealing element of plumbing pressure testing machine, you need to replace the sealing element, but it may also be the problem of electrical, hydraulic, or ratio parameter setting, you can simulate the water pressure, oil pressure value, adjust the water pressure value and ratio parameter, you can get the corresponding oil pressure value.

Water pressure rises slowly

This phenomenon may occur because of the hydrostatic pressure testing machine plastic pipe within the content of air is too large, or the high-pressure pump leakage.

Measures to solve: For the problem of excessive air content in the plastic pipe, the air must be compressed with water to make the plastic pipe reach certain pressure. High-pressure pump leakage problem, you need to check the plastic pipes hydrostatic pressure testing machine exhaust valve, so that the exhaust valve exhaust pipe is close to the top of the inner wall of the steel pipe so that the air inside the plastic pipe as far as possible to discharge.

Golden Time Technology Development Limited specializes in the development and production of hydrostatic pressure testing machines for many years, and our products are known for their high quality.


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