Why does high pressure reciprocating pump overflow? High pressure oil pump manufacturers to introduce to you

What is the reason that the water in the cylinder of high pressure reciprocating pump always overflows from time to time? Compared with ordinary pump, high pressure reciprocating pump is special and can be used in many occasions. When high pressure reciprocating pump works, its plunger needs lubrication, and a small amount of medium will leak out. If this happens for a long time, the sealing performance will be affected and the leakage will increase due to the wear of packing. At this time, if the packing is not tightened or replaced in time, the medium accumulated in the cylinder will overflow, resulting in the above situation. The solution is very simple, which is to set a blowdown hole at the bottom of the cylinder and connect it to the corresponding blowdown system through the pipe. In addition, daily maintenance should be strengthened. If leakage increases again after one tightening, tightening is required. If problems occur after repeated tightening, only the packaging can be replaced.

Due to the special use of EFI high pressure pump, pressure test pump has been widely used, and its good performance has been recognized by users. The reason why the pressure test pump can play a better role is inseparable from the pressure debugging work. When debugging the pressure of the pressure test pump, it is generally necessary to adjust the pressure of the flow control valve first, which is greater than the working pressure of its heavy load. Then adjust the unloading valve of the double pump to make it larger than the actual pressure needed for the fast stroke. At the same time, do not forget to adjust the pressure of the pressure reducing valve on the branches of the small high temperature oil pump so as to achieve the specified value.

Then there is the rotation of the sequence valve of the Land Rover high pressure oil pump, as well as the delivery pressure and return interval value of the pressure relay. We should remind you that the unloading pressure on the pressure test pump should also be controlled, so as not to affect the stability of the equipment. Since some test pumps will be equipped with accumulators, which will also be part of the commissioning pressure, the set point should be consistent with the operating pressure of the actuator it controls.