How do plastic pump head suppliers' lotion pumps work?

Step 1 - Synchronized with the principle of the suction device, which resists gravity. When the head is pressed, the frictional force created by the inner wall causes the piston t to open.

Step 2 - When the actuator is depressed, the piston moves, which in turn compresses the spring. It exerts upward pressure within the dip tube. Additionally, the material in the dip tube can reach the lotion pump chamber.

Step 3 - After releasing the actuator, the ball drops, stopping the flow of material, making sure it doesn't return to the bottom of the lotion pump.

Step 4 - When the fluid reservoir is full, press the head again to drain the fluid.

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