How to choose acid and alkali sewage pump

The selection of acid and alkali-resistant sewage pumps for the pump industry should start from two aspects.

Tools/raw materials

The acidity and alkalinity of the sewage corresponds to the acid and alkali resistant sewage pump material.

The power of the acid and alkali sewage pump corresponding to the flow head

Method / step

First determine the acid-base characteristics of the sewage. The general sewage PH value is between 5 and 9. The FRPP (polypropylene plus glass fiber) material is suitable for acid and alkali pumping. If the pH value is less than 5, it is a strong acid. The alkali resistant centrifugal pump should be selected with PVDF ( Polyvinylidene fluoride), if the PH value is greater than 9, it is a strong base, should be pure PP or CPVC material.

Determine the sewage flow rate and the distance from the alkali-resistant water pump to determine the power of the sewage pump. The flow and head of the acid-resistant sewage pump are inversely related.

Determine if the wastewater contains high levels of particulate impurities. The shaft seal material of the acid-resistant sewage pump is selected accordingly.

It is necessary to determine the installation location of the acid and alkali resistant sewage pump in order to determine whether the acid and alkali resistant sewage pump should have a self-priming function.

To determine the temperature level, in order to determine the pump material of acid and alkali resistant sewage and whether to use high temperature bearings.

Precautions

The acid and alkali resistant sewage pump should not be exposed to the long-term exposure during use. Be sure to have shelter and shelter from the rain.

The inlet of the acid and alkali-resistant sewage pump shall be equipped with a filtering device, and the outlet shall be equipped with a check valve device to prevent backflow and damage of the sewage.