EP 0130306 B2 19940302 - Method and device for controlling a pipe isolator.
Title (en)
Method and device for controlling a pipe isolator.
Title (de)
Verfahren und Vorrichtung zum Steuern eines Rohrtrenners.
Title (fr)
Procédé et dispositif pour contrÔler un séparateur de tubes.
Publication
Application
Priority
DE 3323324 A 19830629
Abstract (en)
[origin: EP0130306A2] 1. A method of controlling a pipe isolator in dependence upon a pressure difference predetermined at a comparison station, the pressure difference resulting from a comparison between the pressures on the inflow side and outfow side, in an apparatus for preventing reflux from a discharge line, a constant safety value being added to the pressure in the discharge line, the isolator permitting throughflow upon the predetermined pressure difference being reached, the throughflow being interrupted again upon the pressure difference being undershot, the pressure difference decreasing again only as a result of termination of the throughflow, characterized in that the pressure is reduced on the discharge side for the duration of the throughflow and is built up again upon the termination thereof and the resulting pressure is compared with the pressure on the inflow side.
IPC 1-7
IPC 8 full level
E03C 1/10 (2006.01)
CPC (source: EP)
E03C 1/104 (2013.01); E03C 1/108 (2013.01)
Designated contracting state (EPC)
AT CH DE LI
DOCDB simple family (publication)
EP 0130306 A2 19850109; EP 0130306 A3 19850925; EP 0130306 B1 19890405; EP 0130306 B2 19940302; AT E41962 T1 19890415; DE 3323324 A1 19850110; DE 3323324 C2 19861009; DE 3323324 C3 19951012; DE 3477591 D1 19890511
DOCDB simple family (application)
EP 84104819 A 19840428; AT 84104819 T 19840428; DE 3323324 A 19830629; DE 3477591 T 19840428