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        Q1: Pipe pump is used in the degreasing process before painted, and the shaft seal is often leaking even be replaced for several times. How to solve this problem?

        A: First of all, confirm leakage part is in the sealing ring or in the sealing ring for corrosion, or in ?the surface of the friction pair for damage. It ?is necessary to decide the medium condition of the pump, ?like whether there are ?impurities in the medium. Different medium needs corresponding ?material of corrosion-resisting sealing roller, the medium within impurities grain needs configurating special anti-friction sealing cover.

        Q2:?Where can I see the installation instructions of CDL pump?

        A: you can find it in the the packing box.

        Q3: whether the cdl16-10 and cdlf16-10 pump are only ?different in the base stainless steel, ?is there any differences in their performance curve?

        A: CDL (F) series ordinary type and stainless steel type are ?exactly the same in ?performance curve.

        Q4: Is there coupling in CDL16-4 ?

        A: All CDL(F) series in our company are ?connected with couplings.?

        Q5: A circulating pump used in our company are seriously leaking. ?It ?is unknown whether the pump is come from your company?

        A: The ?water pump produced by our company ?can be ?judged from three points, ?1. Pump invoice number, Q beginning 2. Factory number, a total of 10 digits 3. Bar code

        Q6: Nowadays, a mechanical seal centrifugal pump is used in playing wastewater use, wastewater containing small molecules of resin, which solidified upon the ?temperature coming down, which resulted ? mechanical seal broken down in two days. ?I would like to ask whether there is a good way to solve this problem.

        A: Is the machine seal burnt out? If so, it may be caused by the friction burn out due to solidified grease adhering on the gap between the friction pair and preventing circulating water from entering. You can order our special type of knife edge machine seal to solve the problem, thank you.


        service provider of pump product and solution

        CNP integrates the advanced R&D technologies from Europe and America, with the most advanced industrial design concept in Western Europe, with the production experience of modern industrial clusters in North America, with the most efficient and energy-saving product structure research in Hangzhou, China.

        With the application of information technology, CNP has built its own smart factory, taking the lead in the introduction of SAP resource management system, becoming one of the key units of the key construction project of ?"machine substitution" in Hangzhou, with the whole process of production information monitoring and tracking, applying laser welding technology to the manufacturing process of robot pump spare parts in depth, using progressive die technology to ensure the quality of the whole process of the parts, all of which greatly reduce the production and manufacturing cycle, provide an intelligent production and manufacturing basis for the pump production.

        CNP was recognized as state-certified enterprise technology center in 2016. It is the highest evaluation level for technology center in China. Besides, CNP has been carrying some technical courses in 11/12/13th National Five-Year Plan.

        CNP uses digital integrated intelligent control technology to create domestic advanced M2M mode, intelligent control technology.

        It includes intelligent current stabilization system, intelligent vacuum suppression system, intelligent auxiliary control monitoring system, intelligent non-negative pressure full frequency control system and intelligent water hammer two-way elimination system.