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公开(公告)号：US20240102478A1
公开(公告)日：2024-03-28
申请号：US18469332
申请日：2023-09-18
Applicant: Grundfos Holding A/S
IPC: F04D27/00
CPC classification number: F04D27/004
Abstract: The invention relates in a first aspect to method of venting air out of a closed fluid system comprising a number of inter connected pipes configured for flow of a fluid, a variable speed pump configured for controlling the volume flow of fluid in said fluid system and an air venting device configured to let air out from the fluid system, the method comprising operating said pump in at least three phases.
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