EP 3339648 B1 20190724 - LIQUID PUMP WITH A PRIMING AIR PUMP AND, BETWEEN THE TWO PUMPS, A FLOAT ACTUATED VALVE
Title (en)
LIQUID PUMP WITH A PRIMING AIR PUMP AND, BETWEEN THE TWO PUMPS, A FLOAT ACTUATED VALVE
Title (de)
FLÜSSIGKEITSPUMPE MIT EINER LUFTANSAUGPUMPE UND, ZWISCHEN DEN ZWEI PUMPEN, EINEM DURCH SCHWIMMER BETÄTIGTEN VENTIL
Title (fr)
POMPE À LIQUIDE AVEC UNE POMPE À AIR D'AMORÇAGE ET, ENTRE LES DEUX POMPES, UNE VALVE ACTIONNÉE PAR UN FLOTTEUR
Publication
Application
Priority
NL 2018034 A 20161221
Abstract (en)
[origin: EP3339648A1] A description is given of a pump system comprising: - a pump which, to operate, requires a minimum level of liquid medium to be pumped in its pump head, and which comprises a non-return valve on its delivery side, and - a level regulator which is connected to the pump head and which has a connection for an air-suction pump, said level regulator being provided with: - a float chamber in which air and/or medium from the pump head is collected, - a float which moves up and down with the level of the medium in the float chamber, - a hollow body which, in operation, is connected to the air-suction pump, said hollow body comprising at least one wall having air holes between said hollow body and the float chamber, and - a member which is coupled to the float and which can be moved over the air holes along the outside of the at least one wall, said member being used to close or open the air holes.
IPC 8 full level
F04D 9/04 (2006.01); F16K 3/02 (2006.01); F16K 24/04 (2006.01); F16K 31/30 (2006.01); F16K 47/08 (2006.01)
CPC (source: EP)
F04D 9/046 (2013.01)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
EP 3339648 A1 20180627; EP 3339648 B1 20190724; DK 3339648 T3 20191028; ES 2752231 T3 20200403; NL 2018034 B1 20180628; PL 3339648 T3 20200430; PT 3339648 T 20191104
DOCDB simple family (application)
EP 17208932 A 20171220; DK 17208932 T 20171220; ES 17208932 T 20171220; NL 2018034 A 20161221; PL 17208932 T 20171220; PT 17208932 T 20171220