Please ask those who know pumps well to help with the selection
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Detailed parameters: Medium: R245fa (a type of Freon); flow rate is 90 cubic meters per hour, head is 75 meters, pressure head is 1 MPa; it is ideal to have no leakage. The flow rate needs to be adjustable, with no drop in head pressure at low flow rates.
This post was last edited by foam_ZPTK on 2018-9-25 at 20:28. If there is no leakage, then a magnetic pump or a shielded pump should be used. Our factory has magnetic pumps available; you can add me on WeChat at 13780933572. The head under flow rate decreases over time, and this can only be adjusted by using variable frequency control.
If there is no requirement for leak prevention, I can only recommend magnetic pumps or shielded pumps.