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Commonly Pumped Chemicals

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Jan. 30, 2021
Courtesy ofCrest Pumps Ltd.

During a recent survey of all enquiries we received for chemical applications we found that around 50% were for a very small number of chemicals, so we thought it would be useful to run through these chemicals and list the suitable pump materials for our most commonly pumped chemicals.

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For up to 60% concentrations and temperatures up to 600C we would normally select Polypropylene.

For higher concentrations and temperatures up to 1000C we would select PVDF, ETFE or PTFE.

For a mechanically sealed pump we would use a Single PTFE / SiC / Sic external seal.

For magnetic driven pumps we would select a carbon / ceramic shaft and bearing combination.

For up to 36% concentrations and temperatures up to 600C we would normally select Polypropylene.

For higher temperatures up to 1000C we would select PVDF, ETFE or PTFE.

For a mechanically sealed pump we would use a Single PTFE / SiC / Sic external seal.

For magnetic driven pumps we would select a carbon / ceramic shaft and bearing combination.

For up to all concentrations and temperatures up to 1000C we would normally select PVDF, ETFE or PTFE.

For a mechanically sealed pump we would use a Single PTFE / SiC / Sic external seal.

For magnetic driven pumps we would select a carbon / ceramic shaft and bearing combination.

For all concentrations and temperatures up to 600C we would normally select Polypropylene.

For higher temperatures up to 1000C we would select ETFE or PTFE.

For a mechanically sealed pump we would use a Single MSH internal seal up to 20% concentration

Above 20% concentration we would always advise a double mechanical seal with a pressurised external flush.

For magnetic driven pumps we would select a SiC / Sic shaft and bearing combination and (usually) ETFE casing.

So, these four liquids make up very nearly 50% of all chemical applications that we receive enquiries for. I hope this helps but, for a specific quotation, please confirm all enquiries with our sales team.