QDL / QDLFfor the installationof a standard motornon-selfpriming multistagecentrifugal pump,the motor shaftthrough thepump headshaftassociatedwith thedeviceconnecteddirectly to theshaft,rodboltswillpressurecylinder,fixedflow componentsout of the waterin thepump headandparagraphsbetween thepumpinlet and outletof the pumpat the end ofa straight line;thepumpmay need toconfigure the smartprotector,dry runningofpumps,phase,effectiveoverloadprotection.