Manual hydraulic pump pressure adjustment

Manual hydraulic pump equipment in industrial production can be developed with the size of their products, the work is the most concerned about the issue in the manual hydraulic pump oil storage tank in place before the start of operation to him Check and check at 1 CM inlet to ensure that the reservoir is not full, lest hydraulic oil overflow from the inlet. If necessary, add hydraulic oil as excessive hydraulic oil may occur. How to adjust the pressure of manual hydraulic pump How to adjust the pressure of manual hydraulic pump? Pressure gauge is the output pressure, the general hydraulic system is a relief valve, a variable pump. There will be one more system, such as the variable pressure pump is limited to 2000psi, then the system that may be 2300psi. One to limit the system's operating pressure and the other to limit the system's safety pressure after a problem with the first relief valve. Some systems may have to install more relief valve to ensure safety, simply adjusting the pressure relief valve on the pump to adjust the pressure "may" make the system pressure is increased to produce greater output in the cylinder, However, there is a possibility that the system will not be over-stressed. Another point is to adjust the system pressure will be improved, but the branch pressure may not be increased. Because some branch pressures are limited by the pressure relief valve, such as the main line pressure is 2000psi, due to the pressure relief valve limited road pressure may only be up to 1000psi. No matter how the pressure of the main circuit increases, the branch pressure can not be raised to over 1000psi, at this time, the pressure of the valve should be adjusted. The vast majority of manual pump safety valves are non-adjustable relief valves located inside the pump head. Only to limit the maximum pressure, the actual use, you need to look at the pressure gauge operator, as soon as the pressure, the pressure slowly. Manual hydraulic pump after years of development, which already have more mature technology, as China's demand for such products continues to increase, the development of such products have also attracted more attention. People always say that there will be competition in the market. The development speed of our country's pump industry is moving at an unthinkable speed. The product variety is constantly being popularized. How to maintain the traditional advantages of this product requires more efforts.

In the early 21st century in our country, our electromechanical industry through the introduction of foreign advanced assembly and fastening technology, while the use of high-strength hydraulic nut, hydraulic tensioners, as the source of simultaneous introduction of high pressure manual hydraulic Pump. As a simple and convenient hydraulic power source, EHV manual hydraulic pump is widely used in many fields such as shipbuilding industry, coal mining machinery, petrochemical industry, metallurgy, electric power and heavy machinery. And its small size, light weight, easy to carry, security and other advantages are accepted by the majority of users. Manual hydraulic pump prone to pressure in the use of the situation, this issue has been more and more people's attention. Manual hydraulic pump pressure is not what is the reason Manual hydraulic pump pressure is not what is the reason: 1, may be manual piston and hole strain, then need to do is to open the handle and open the grinding hole and plunger. 2, check the spring is not broken, so easy to plug the plunger. 3, one-way outlet port blocked. The working principle of the manual hydraulic pump to convert the mechanical energy of the power machine into liquid pressure energy, which is the same as the working principle of the pump used in our daily life. When the piston rod is extended, the check valve on the oil suction channel is opened and the row When the piston rod is retracted, the one-way valve on the oil sucking passage is closed and the one-way valve on the oil discharging passage is opened to complete the oil draining process. The main function of the manual hydraulic pump is that when there is no power source failure of the power source, the actuator reaches a certain position through the manual hydraulic pump.

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