How to correctly calculate the input cost of purchasing pumps

For the first purchase, compare the three, accurately calculate the price of the pump, and then select the product that can meet the price you require. But for users, the role of the magnetic pump in the use process is much higher than the cost of purchasing it. In this way, the work time and maintenance costs that are wasted when the pump has problems and failures must be calculated into the overall cost. In the same way; the same, the pump will consume a lot of electrical energy in the process of running, used for many years, the electrical energy consumed by a small pump is staggering.

After some foreign pump factories' follow-up investigations on the products sold, the largest capital consumed by the pump during its service life is not the initial purchase cost, nor the maintenance cost, but the energy it consumes. I was surprised to find that the value of the electrical energy consumed by the pump has far exceeded its own procurement costs and maintenance costs. Considering its own efficiency, noise, manual maintenance and other reasons, what other reasons do we have to buy those with low quality and low price What about the "parallel import" products?

In fact, the principle of a certain type of pump is the same, the structure and components are also similar, the biggest difference is reflected in the selection of materials, workmanship and quality of the components. Unlike other products, the cost difference of pump parts is very significant, and the gap is so large that most people can't imagine it. For example, a very small shaft seal can be bought for a few cents, but a good product costs tens or even hundreds of yuan. It is conceivable that the difference between the products manufactured by these two products is so large. People worry that they are almost indistinguishable during the early use. The price gap of hundreds to thousands of times is reflected in the performance and life span of products. Short-lived (a few months), noise (appears after one or two months), liquid leakage (appears after two or three months) and other phenomena have occurred continuously, causing many users to regret starting the price difference in the middle of the province. The large noise and high heat during use are actually valuable electrical energy conversion. For the useless kinetic energy (mechanical friction) and thermal energy, the actual effective work (pumping) is very pitiful.