Why does the Screw Lotion Pump get stuck or stop discharging liquid when pressing?

Screw Lotion Pump may experience jamming or failure to discharge during daily use, which usually affects the user experience. There are many reasons for this problem, which may involve air blockage inside the pump body, pipe blockage, spring or piston damage, insufficient sealing of the bottle mouth, and even the viscosity of the lotion. There may be unexpelled air inside the pump body. When the Screw Lotion Pump is first used, you may not feel resistance when pressing, or the pump head rebounds normally but no liquid flows out. This is usually because a stable suction mechanism has not been established inside, and the air hinders the flow of liquid. A common way to solve this problem is to press the pump head quickly and multiple times to gradually squeeze out the air in the pump until the liquid is successfully extracted.

Blockage of the pump tube or the liquid outlet is also an important factor that causes the failure to discharge liquid. Some skin care products or cleaning products contain particulate matter, or precipitation occurs due to long-term storage, which may cause the pump tube to be blocked by foreign matter. In addition, some more viscous lotions, such as high-concentration skin creams, may become thicker in low temperature environments, thereby hindering fluidity and making it difficult for the pump head to extract liquid. If you find that the liquid does not flow smoothly after pressing the pump head, you can try to disassemble the pump head and clean it to ensure that the pipeline is unobstructed. If the lotion itself is too viscous, it is also an effective solution to adjust the formula appropriately or choose a pump head type that is more suitable for high-viscosity liquids.

Damage to the spring or piston is also an important factor that leads to failure to press. One of the core components of the Screw Lotion Pump is the internal spring, which is responsible for providing resilience so that the pump head can quickly return to its original position after pressing. If the spring loses its elasticity or breaks, the pump head may get stuck or fail to provide enough pressure to push the liquid up. Similarly, if the sealing of the piston is damaged, it will also affect the suction effect of the pump head, resulting in the pump body being unable to form an effective vacuum environment, making it difficult for the liquid to rise. For this situation, the most direct solution is to replace a new pump head to restore normal function.

The sealing of the bottle mouth is also a factor that is easily overlooked. If the bottle mouth of the Screw Lotion Pump is not tightened, or the sealing gasket of the bottle mouth is aged or damaged, air may enter the pump body, destroying the vacuum suction mechanism and preventing the liquid from flowing out smoothly. When the pump head cannot discharge liquid, you should first check whether the bottle mouth is tightened to ensure that the seal is in good condition. If the seal is damaged, you can replace it with a new seal to improve the sealing performance.

The viscosity of the liquid will also affect the use of the Screw Lotion Pump. Generally speaking, too viscous liquids have poor fluidity in the pump tube, which can easily cause difficulty in extraction, while too thin liquids may cause the pump head to be unable to establish stable pressure, affecting the discharge effect. When choosing a pump head, you should choose the appropriate specifications according to the characteristics of the liquid. For example, high-viscosity skin creams usually require larger outlets and stronger suction force, while low-viscosity hand sanitizers can use ordinary specifications of pump heads.