How to prevent dry ice formation in CO2 cryogenic pumps?

How to prevent dry ice formation in CO2 cryogenic pumps?

To prevent dry ice formation, keep the pump operating pressure above the sublimation point of CO2 and ensure good insulation and sealing of the pump body and inlet pipes. Use closed or shaft seals to prevent air from entering the pump and causing a drop in temperature. At the same time, regularly check and maintain the pump’s sealing and insulation to ensure no leaks and stable temperature control.