We will test all the parts of the pump according to their standards:

For example:

Impeller blades: according to GB2100-80, test the dimension, surface roughness and hardness

Hub: according to GB/T11352-89, test the dimension, surface roughness and if damage

Impeller: test the impeller static balance, operating mechanism

Iimpeller chamber: according to GB/11352-89, test the dimension, suiface roughness, shell and the water pressure.