Summary, there is an easy way to make different usage sprayers by using the same pump. Just simply changing the actuators can reach the goal.

Various actuator can be assembled on the same pump to form different sprayers with different usage.

Such flexibility can be extended to the combination between bottle and different sprayers.
*However, if dosage or closure size changes, we must use the different pump, because using actuator can not lead to different dosage or closure size.