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I'm looking for advice on how to depict the HPLC pump on the P&I Diagram. What is the symbol (or combination of symbols) to indicate that it has 4 switchable inputs and one combined output with the built-in high-pressure pump? (+ in-situ flow indicator)

Additionally, I'm looking for the symbol of the position switch valve. It's the thing like this:

enter image description here'

Have several inputs, out of which only one can be selected, and permanently attached the common output.

Araneus0390
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  • what's the operating principle of the pump? What does switchblade mean in this context? Is it the process connector of the pipe? – mart Jun 02 '22 at 08:16
  • What does the manufacturer show as a symbol? They usually have some example diagrams. Some manufacturers have a whole series of books about the theory - Mannesman Rexroth Sigma for one. – Solar Mike Jun 02 '22 at 08:18

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FPLC manufacturer Pharmacia (now Cytiva) draws the pumps and injection valves in their AKTA systems like this. FPLC is a low-pressure HPLC. It sounds like you want the symbol for the injection valve, rather than the pump itself? enter image description here

https://btiscience.org/wp-content/uploads/2014/04/FPLC_Optional_Config.pdf

runcyclexcski
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  • Thanks for the attached document. The diagram you showed is not precisely what I needed, but the document contains the needed info in section 7.1. – Araneus0390 Jun 06 '22 at 09:14