Where is the key to a high-quality lotion pump head?

Update:31 Aug 2020
Summary:

A lotion pump, also called a push-type lotion pump, is […]

A lotion pump, also called a push-type lotion pump, is a liquid dispenser that uses the principle of atmospheric balance to pump out the raw material liquid in the bottle by injecting and supplementing the external atmospheric pressure into the bottle.
The key to a good pump head is to pay special attention to the following aspects:

 

 

1. Here it is very important to seal the glass or steel ball under the spring, which is related to the upward flushing force of the liquid in the spring cavity. If there is a leak here, some liquid will leak into the bottle when the compression handle is pressed, thereby affecting the spraying effect of the liquid.
2. It is the sealing ring at the upper end of the valve body. If there is a leak here, when the pressure handle is released, the pumping force of the liquid will be reduced, resulting in a small amount of liquid stored in the valve body, which will also affect the spray effect.
3. The matching between the pressure handle and the valve core. If there is a loose match and leakage here, there will be a certain resistance when the liquid rushes to the nozzle, and the liquid will flow back. If there is a leak here, the spray effect will also be affected.
4. The nozzle design and nozzle design are directly related to the spray effect. For details on nozzle design, see the next page.

Therefore, the general function of the pump head also detects these four positions, and routinely detects other appearance and coordination issues.