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How to choose hydrochloric acid pump? Apr 17, 2023

How to choose hydrochloric acid pump

The aqueous solution of hydrogen chloride that we often hear is hydrochloric acid. If you choose a pump for pumping hydrochloric acid, you should first know whether the pumped hydrochloric acid is concentrated or dilute hydrochloric acid. Choose the type and material of hydrochloric acid pump according to different concentration. Today, we will choose a hydrochloric acid pump according to different concentrations of hydrochloric acid.

1. The concentration of dilute hydrochloric acid is generally 10%, and the concentration of concentrated hydrochloric acid is about 98%. The concentration of dilute hydrochloric acid is low, but it is still corrosive, acidic and alkaline. The concentration of hydrochloric acid is harmful to the human body and can react with most metals. Therefore, it is necessary to choose the hydrochloric acid pump of plastic material in the choice of material.

2. The selected hydrochloric acid pump should meet the flow rate, lift, power, temperature and so on. After meeting the use requirements, further select the quality of accessories, motor, cost performance and so on.

3, the performance of pumping hydrochloric acid pump hydrochloric acid has a strong oxidation, in the selection of mechanical seal material to resist corrosion, mechanical seal is made of silicon carbide, rubber seal is coated with Teflon material, anti-corrosion, acid and alkali resistance.

4. No matter concentrated hydrochloric acid or dilute hydrochloric acid, self-priming pump, magnetic pump and vertical pump can be used. Different concentration of different materials, at the same time self-priming pump and vertical pump can be used idling, never because of idling damage, prolong the use of time. The bearing and shaft of corrosion-resistant magnetic pump have ceramic, carbon, SIC and other materials to choose from.

5. Most of the screws are SUS304, and even if they are made of SUS316, they cannot withstand the long-term corrosion of hydrochloric acid. All the screws of the chemical pump with hydrochloric acid are made of titanium alloy, which is resistant to strong corrosion.

To select the pump for pumping hydrochloric acid, be sure to confirm the concentration, and then select it according to the on-site working parameters. If there is more than one kind of conveying medium, you should be careful when choosing. If you want to meet the conveying medium, you can consult the RISTER staff if necessary.

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