our company rely on advanced technology, exquisite craftsmanship, reliable quality and perfect service, passed ISO9001, ISO14001, OHSAS18001 management system certification, now we have 300 staff, annual sales of glass fiber reinforced plastic series products achieved 20,000 tons, products have been sold to all over the world, USA, Brazil, Japan, Germany, India, Malaysia, Iran, Egypt, Bangladesh, Mali, Mongolia, Philippines, Italy, Chile, etc., and won the support and trust from new & old customers.
The inner surface of the RPM pipe is very smooth; the roughness coefficient is very small.Not only the inner surface of new produced pipe is very smooth,but also it is same smooth as the beginning after has been used many years,and no seaweed and other aquatic derivative be adhered.The water conservancy factor(C)can be kept within 140 and 150 during a long period.
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After the relative testing,its friction factor(f)is 0.0009 15,it is smaller than the PCP(f=0.00232) and the steel pipe (SP)(f=0.0O 179).
It can decrease the pressure head loss obviously;capacity above 20%.So when the conveying the increase conveying capacity 1S same,can adopt the RPM pipe with lower diameter,can save the investment of the project.The conveying capacity comparison can see the following Table and Diagram.
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