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Diaphragm for diaphragm pumps

2009-03-23View Original

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I just saw a post about a diaphragm pump (from Shanghai Denai), and many people think that the quality of domestic diaphragms is very poor. But from what I’ve used, it seems to be okay (not for continuous operation). But due to the long time that has passed, I can’t remember how to use that grade either. Here, please recommend or suggest good domestic diaphragm manufacturers.
Reply #22009-03-24
For domestically produced diaphragm pumps, it is rare to find ones with high-quality diaphragms; most of them imitate imported diaphragms, and in many cases they are nothing but counterfeit and inferior products
Reply #32009-03-27
Many domestic diaphragms also have excellent quality; brands such as QBY and RUDI are both good choices. Many diaphragm pumps of imported brands are actually manufactured in China, such as Sandpiper, ARO, etc. As a vulnerable component of diaphragm pumps, the diaphragm is also manufactured in China. The quality of diaphragms is determined primarily by their service life. The manufacturing process plays a role in determining this service life, but it is also greatly influenced by the operating conditions. Factors such as high wear and tear, high pressure, high temperatures, extremely low temperatures, and continuous operation can all affect the lifespan of diaphragms.
Reply #42009-03-28
Imported diaphragms are still the better choice; I hope the quality of domestic production can be improved. It would be great if I could use my own diaphragm pumps in the future
Reply #52012-02-01
Give it some support. By the way, I work with imported diaphragms

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