A small thing about diaphragm pumps
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Recently, we received a message from an old customer. The gist of the message was that they had previously purchased diaphragm pumps from us, and later, due to environmental regulations, they needed to acquire a few more of such pumps. After comparing several manufacturers available on the market, they found that those manufacturers offered better prices, so they chose diaphragm pumps of the same model from other manufacturers. Once the pump arrived at the customer’s hands, they immediately noticed a difference in its appearance – it didn’t look as good and was also smaller. Upon use, it was found that its flow rate was half that of the pump they had purchased before, and its diaphragm wasn’t as durable. After communicating with the customer, they purchased our pumps again for the following reasons: 1: Manufacturers of the QBY.QBK series diaphragm pumps engage in price competition; their smaller models are simply offered as larger pumps by increasing the size of the inlet and outlet ports. 2: Although it is claimed to use imported diaphragms, in reality domestic diaphragms are used (in terms of rubber, domestic products are indeed of a higher quality than those from abroad). 3: The material used for the pump body is extremely thin; costs are cut as much as possible, which leads to fierce price competition at low levels. You get what you pay for – keep in mind that high-quality products aren’t cheap. Here are a few pictures of our own diaphragm pumps
This post was last edited by 3983596_FPPZ on 2018-11-22 at 17:54. These diaphragm pumps no longer require much technical expertise; there are just three key components: a valve, a diaphragm, and a reversing mechanism. If these are properly managed, the pump will basically work without any problems. But the claim that using a smaller pump instead of a larger one reduces the pump’s flow rate by half is a bit exaggerated. After all, pumps whose performance parameters do not meet the standards simply cannot survive in the market. What kind of chaotic market would that be, and what do they think customers are? There are indeed issues with many products in other aspects, such as the practice of using inferior materials to pass them off as high-quality ones, and substituting lower-grade items for higher-grade ones. No matter how poor a company’s management may be, how low the quality of its products, or how poor its reputation, if it is able to survive in the market, there must be a reason for that. I believe Darwin’s theory of evolution can solve all problems. It is suggested that this member of the community promote themselves, but should avoid criticizing others excessively, so as to prevent unnecessary disputes and problems. Haichuan Forum is a peaceful place; we should make friends through technical skills, solve problems, acquire knowledge, and strengthen ourselves for the greater good
The product images look familiar, hehe