Self Priming Pump are designed to automatically remove air or gases from the suction line and create a vacuum to draw in fluid for pumping, without the need for manual priming. The operation of Self Priming Pump typically follows these general steps:
- Initial Priming : Before the pump is started, it needs to be primed initially to remove air from the system. This is usually done by filling the pump casing and suction line with the fluid to be pumped. Some Self Priming Pump may have a priming chamber or reservoir that needs to be filled with liquid.
- Startup : Once the pump is primed, the motor or engine driving the pump is started. As the impeller begins to rotate, it creates centrifugal force, which pushes the fluid towards the outer edge of the impeller.
- Air-Water Separation : As the fluid is pushed towards the outer edge of the impeller, air or gases present in the suction line or casing are also pushed towards the outer edge. The impeller design of Self Priming Pump incorporates features that allow for air-water separation.
- Air Release : The air or gases, being lighter than the fluid, move towards the top of the pump casing or a separate air chamber. Self Priming Pump usually have an air release or venting mechanism, such as a vent valve or an automatic air release valve, located at the highest point of the pump casing. This mechanism allows the air to escape, while preventing the fluid from escaping.
- Vacuum Creation : As the air is released, a partial vacuum is created in the suction line and pump casing. This vacuum draws fluid from the source or reservoir into the pump, overcoming the suction lift and maintaining a continuous flow.
- Pumping Operation : Once the air is sufficiently removed and the fluid fills the suction line and pump casing, the Self Priming Pump operates like a standard centrifugal pump. The rotating impeller continuously propels the fluid towards the pump outlet, creating the desired flow and pressure.
It’s important to note that the priming process may take a few seconds or minutes, depending on the specific design and size of the Self Priming Pump, as well as the length and complexity of the suction line. Additionally, Self Priming Pump may have limitations on the maximum suction lift they can handle, so it’s essential to consult the manufacturer’s guidelines for proper operation and performance.
Facebook : Pumpular
