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Keyword:
Lotion pump
Product Details
When buying a product containing an emulsion pump, you must know that during the pressing process, you need to connect its head through it, and drive the piston to use under the action of the compression spring. In the process of compressing the spring, the outer wall of the emulsion pump piston often makes the piston fully open through the friction of the inner cavity wall, and the liquid appears in the discharge hole of the piston head. When the piston moves down, the internal air will be discharged from the piston head.
We can completely discharge the air in the inner cavity by pressing multiple times, then press the head by hand, and then discharge the air in the inner cavity through the action of the piston connecting rod and the compression spring. At this time, loosen the pressure head of the emulsion pump by hand, and the spring will lose its pressure and move down again. At this time, the piston moves downward by rubbing the inner wall to close the discharge hole.
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