EP 0427988 B1 19921230 - MEMBRANE PUMP
Title (en)
MEMBRANE PUMP
Publication
Application
Priority
DE 3937847 A 19891114
Abstract (en)
[origin: EP0427988A1] In the case of a diaphragm pump (4), which is intended in particular as a dosing pump for use in biochemical engineering plants and which is provided with at least one self-closing inlet valve (22) and one self-closing outlet valve (21), additional lines, which in the nature of a bypass allow the valves to be circumvented, are provided for the purpose of carrying out a complete in-situ sterilisation of those areas of the pump in contact with the product. These additional lines can be shut off by means of valve spindles (32-35) and are each connected to an annular chamber enclosing the inlet and outlet valves. <IMAGE>
IPC 1-7
IPC 8 full level
F04B 15/00 (2006.01); F04B 43/02 (2006.01); F04B 53/10 (2006.01)
CPC (source: EP US)
F04B 15/00 (2013.01 - EP US); F04B 43/02 (2013.01 - EP US); F04B 53/1097 (2013.01 - EP)
Designated contracting state (EPC)
AT CH DE LI
DOCDB simple family (publication)
EP 0427988 A1 19910522; EP 0427988 B1 19921230; AT E84122 T1 19930115; DE 3937847 C1 19910228; DE 59000693 D1 19930211
DOCDB simple family (application)
EP 90120510 A 19901025; AT 90120510 T 19901025; DE 3937847 A 19891114; DE 59000693 T 19901025