EP 1981658 A1 20081022 - METHOD OF WASHING PIPEWORK
Title (en)
METHOD OF WASHING PIPEWORK
Title (de)
VERFAHREN ZUM WASCHEN EINES ROHRSYSTEMS
Title (fr)
PROCEDE DE LAVAGE D'UNE TUYAUTERIE
Publication
Application
Priority
- EP 2007001071 W 20070208
- FR 0601212 A 20060210
Abstract (en)
[origin: US8080112B2] The invention concerns a method of washing pipework comprising a high point and at least one low point and filled with a liquid product, the washing method comprising: a step of draining the pipework of the liquid product; a step of filling the pipework with a washing product up to a filling level below the level of the high point; a step of introducing into the pipework a total volume of air through the or each low point the total volume of air introduced being substantially equal to the volume existing between the level of the high point and the filling level; and a step of draining the pipework of the washing product; the method being characterised in that the introduction step comprises at least two cycles, each cycle comprising in series an introduction of a volume of air of a first type at a first rate and an introduction of a volume of air of a second type at a second rate lower than the first rate.
IPC 8 full level
B08B 9/032 (2006.01); B67C 3/00 (2006.01)
CPC (source: EP US)
B08B 9/0323 (2013.01 - EP US); B67C 3/001 (2013.01 - EP US)
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
WO 2007090641 A1 20070816; AT E495829 T1 20110215; DE 602007012052 D1 20110303; EP 1981658 A1 20081022; EP 1981658 B1 20110119; FR 2897284 A1 20070817; FR 2897284 B1 20090703; US 2010051061 A1 20100304; US 8080112 B2 20111220
DOCDB simple family (application)
EP 2007001071 W 20070208; AT 07703348 T 20070208; DE 602007012052 T 20070208; EP 07703348 A 20070208; FR 0601212 A 20060210; US 27866407 A 20070208