Self-priming pump after the pump is going to start next time is not the cause of the water absorption

self-priming pump stop after the water pump is not the cause of the water absorption, self-priming pump start next time is not the cause of the water absorption

often encounter some users in the use of reflected in the process of self-priming pump self-priming pump * after irrigation can suck up the water, but the self-priming pump after the pump is going to start the next time do not go up to the water absorption, don't know self-priming pump stop after the pump is not what is the cause of the water absorption, according to the results of our view to the user's site of self-priming pump stop after the pump is not the cause of the water absorption for reference for the following reasons:

because there are so many types self-priming pump products commonly used such as ZX self-priming pump, self-priming pump column ZW self-priming sewage pump inlet check valve and pump body bulky appear this kind of phenomenon also is less, and some self-priming pump products such as small stainless steel self-priming water pump imported without the check valve and pump body smaller due to the customers in the use of the installation process water bottom line no bottom valve installation, stop the pump after easily poured the inside of the pump body of water back in the pool, so the next time starts because there is no water inside the pump body, so the pump self-priming pump shutdown after the phenomenon of water absorption, can put a foot valve at the bottom of the pool, or install a check valve in the self-priming pump inlet to prevent the inside of the pump body, water can solve the problem. Some users outlet piping vertical also did not install the check valve, if stop the inside of the pump discharge pipe water will return to the pump body, if you are using ZX, ZW self-priming pump will be due to the self-priming pump inlet check valve disc not completely sealed inside, water will slowly return to the pool of water, stop the water pump after a long time finally only inside the pump body and part of the water, the next startup to exhaust air to suck up the water again, if you are using small volume of self-priming pump and not as exports with the check valve disc did not check the reason, after a long time has almost no water inside the pump body, so if the export is higher than the pump must be installed check to use self-priming pump. Some working pump discharge pipeline are very short as temporary drainage with self-priming pump export almost did not install any valves, stop the pump after due to the inside of the pool water level is lower than pump, self-priming pump installation is usually installed without bottom valve, export without installing any valve so that the air will be inhaled into the pump body of water will be reversal phenomenon, if exports to install the valve the air valve is closed before stop pump could not enter into the pump body before the self-priming pump negative pressure will not be destroyed, which is formed by the water it is not easy to reversal phenomenon also won't appear self-priming pump stop after the pump is not the phenomenon of water absorption.

below is the self-priming pump not water absorption after the stop pump case:

visible above the user on the export pipeline answered a tee joint customers every time after the zero drainage hose zero drainage, self-priming pump after the pump is going to start next time don't water absorption after the problem, users reflect the situation and provide the photos to us, you can see in the picture the export pipeline ball valve with installation, is reported to the user not to close the valve before stop the pump stop pump again, then we allow the user to turn off the valve to stop the pump, start the self-priming pump outlet valve try to open, the user feedback in accordance with the order of the closed valve stop pump operation problem is resolved after the next to start the pump and then open the water valve immediately came out.

not because air into the self-priming performance of self-priming pump products can choose: liquid powder mixed self-priming pump

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