公开(公告)号：US20240410774A1

公开(公告)日：2024-12-12

申请号：US18704013

申请日：2022-09-22

Applicant: Endress+Hauser SE+Co. KG

Inventor： Dietmar Leuthner ,  Stefan Kropf ,  Jens Böckler ,  Markus Berger ,  Marc Andreas Schlachter

IPC: G01L19/00

Abstract: A diaphragm seal includes: a metallic diaphragm seal body; a dividing diaphragm; a dividing diaphragm chamber closed by the dividing diaphragm; a hydraulic channel extending, at least in sections, through the diaphragm seal body and communicating with the dividing diaphragm chamber, wherein the hydraulic channel and the dividing diaphragm chamber are filled with a transmission fluid; a filling channel, communicating with the hydraulic channel; and a closure body, which closes the filling channel, is introduced into the latter with a locating fit, and is welded to the diaphragm seal body, wherein the diaphragm seal body comprises a first material with a first degree of hardness, and the closure body comprises a second material with a second degree of hardness, which differs from the first degree of hardness by at least 10% of the lower one of the two degrees of hardness.