Since a significant feature is different from the suction pump centrifugal pump is not need irrigation when in use, but at first use must remember to pump in the water, because the pump itself is not stored in the liquid, if used for the first time when not poured the water, then the pump will be idle. Not only the liquid absorption, but also because the idling pump body sealing machine and other accessories burned, so it must pay attention to.
The self-priming pump is installed when the need to install the valve? In general it is not needed because the bottom valve, inlet general self suction pump with self check valve, check valve is what we often say, this pump after the stop, the pump body is unable to return to the original liquid pool, and stored in the pump body, so the second time use do not need to add filling liquid, but is not to say that the self suction pump with valve, the valve installed after the effect will be better, because sometimes if the check valve is damaged, and the valve as a guarantee, does not appear after installation of valve and idling, there will be effective to ensure effective suction pump!
So the self-priming pump is not need to install the valve, but not to say that can not install the valve, after adding valve suction pump will be more secure, especially for some self suction pump for small self-priming pump is generally not a one-way valve is small, the vacuum generated by the moment in the pump body to self suction effect, so the installation of the valve after the pump suction process will be better!
