Which companies have experience using rotary jet pumps?
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Our plant’s boiler feed water pump has a capacity of 2 m³/h at a pressure of 300 meters; the existing diaphragm plunger pump is not powerful enough, which is why we plan to replace it. Has anyone used a rotary vane pump? What about performance and durability? What are the challenges in using it?
I have a suggestion for you: find a more reputable manufacturer (search on Baidu), and then contact their sales representatives or technicians – they will tell you everything you want to know.
Vortex pumps are very durable! High traffic!
Which manufacturers of rotary vane pumps are more reliable? Please recommend two
In China, Sichuan Nikki and Jiangsu Sealion are also okay. For imports, I only know Weir. For the boiler feed pump, pay attention to the NPSH; the flow rate and head are fine.
Seal Lions is located in Jingjiang, about an hour’s drive from us. We ordered two small pumps there previously, but their delivery was delayed by half a month – it was extremely frustrating. They also have centrifugal pumps, but we decided not to consider them due to the slow delivery times. We learned that they have a poor reputation, and they aren’t allowed to take on large-scale bidding projects. By chance, through a chemical industry exhibition, we got in touch with a Taiwanese company based in Jiaxing, Zhejiang, called Shengfa Pumps. Their prices were almost half lower. We went to a company in Zhenjiang named Zhengdan Chemical to see how these pumps perform in practice; we decided to buy one first for testing, and make the payment only after confirming its quality. It seems like a very reliable option
We have used Sichuan Nikki pumps; these pumps don’t require much technical expertise. The process conditions used by the original poster probably need to be improved further; I’m not sure why the volume pump couldn’t be used in the first place
In these past two years, projects have surged suddenly; large companies are likely to be overloaded with orders, which in turn provides opportunities for smaller manufacturers. In terms of principle, I think this pump is quite good. I’ve never heard of Shengfa pumps; there are simply too many pump manufacturers in China.
Our pump is used to supply water to boilers. The original diaphragm reciprocating pumps had a low flow rate, which did not meet the requirements for expansion; they were also unstable and required frequent repairs
It’s probably a small factory; they’re showing up at the Shanghai Chemical Industry Exhibition in an attempt to find business opportunities. The prospects for chemical factories are still good