What is a lubricated hand pump?

Lubricating hand pump is a piston pump, which is a small lubrication pump operated by a manual lever handle todischarge grease. When the handle is pressed down, oil will be sucked into the piston cavity. lt can be combined withthe resistance distributor to form a centralized lubrication system, which is suitable for lubrication places with lessstringent oil requirements and simple systems.

Manual oil pumps are widely used in daily life, and can be applied to punches, lathes, cutting machines, millingmachines, etc. The operation is very simple, just pull the handle by hand, then push the plunger, and the oil in thecylinder will be discharged.

What parts does a manual lubrication pump consist of?Manual lubrication pump is mainly composed of oil reservoir, plunger pump, check valve, oil filter and other main partsManual lubrication pumps are small, easy to install and easy to use. Equipped with a check device to prevent oilbackflow.

How does a manual lubrication pump work?When the oil pump starts to work, the high and low pressure plunger wil hydraulic the oil into the high and low pressurecheck valve. and after passing through the high and low pressure check valve, the oil wll enter the cylinder. At this timethe pressure will rise, and when the pressure rises to a certain point, the low-pressure oil will overflow from the low.pressure relief valve and flow back to the oil storage pipe. After the first step of the process, the high-pressure plungerwill continue to work, and the pressure will gradually increase. After the pressure rises beyond the rated pressure, thehigh-pressure valve will automatically open, at this time the high-pressure oil will overflow from the high-pressure valveback to the oil storage pipe, in fact, in this process, the high-pressure valve also has a role is the safety valve, whichplays a certain safety role. In the process of work, the working cylinder will do work, at this time the pressure will slowlydecrease, then in order to maintain the pressure required for the work, it is necessary to shake the handle at any timeuntil the end of the work. After the unloading of the oil pump is completed, the internal pressure needs to be reduced tozero, Then at this time, it is necessary to open the unloading valve to let the oil flow back into the oil storage pipe, andafter completing this process, the unloading work is completed. Every process is inevitable.