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Pumps In Different Media Should Choose What Kind Of Material

Hangzhou Grand Trading Co.,Ltd | Updated: Jul 17, 2015

Pump using a wide range, working conditions vary, Shanghai pump need to be treated differently specific situation. First, look at what the system used in the project, you can probably separated according to the type of pump and materials engineering in different media. After the individual projects, see the design requirements, according to the pipeline media flow, head, power and then the pump segments.

Here we take a look at select pump materials under different media

1, sulfuric acid medium at the pump material of choice

As one of the strong corrosive medium, sulfuric acid is the use of a very wide range of important industrial raw materials. Different concentration and temperature sulfuric acid corrosion of materials vary greatly, for concentrated sulfuric acid concentrations above 80%, the temperature is less than 80 ℃, the steel and cast iron pumps have good corrosion resistance, but it is not suitable for high-speed flow sulfuric acid, not used as a valve material; ordinary stainless steel such as 304 (0Cr18Ni9), 316 (0Cr18Ni12Mo2Ti) limited use of sulfuric acid medium. Therefore, sulfuric acid delivery pump valve usually high silicon cast iron, high-alloy stainless steel. Fluorine plastic has good resistance to sulfuric acid properties, using fluorine pump is a more economical choice.


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