ACCESSORY FOR BENCH TESTS OF MAIN PUMPS Russian patent published in 2020 - IPC F04D29/60 F04B51/00 

FIELD: machine building.

SUBSTANCE: invention relates to machine building, namely, to device for attachment of bench pipelines to branch pipes of tested pump, and can be used at connection of tested pump to pipeline of test bench for testing of main centrifugal pumps in order to determine their characteristics. Equipment for bench tests of main pumps includes two pipelines, each of which is made with possibility of connection with pump branch pipes by pin joint of flange of coupling, intermediate and half-yoke rings with pipeline flange. Semi-jumper is configured to cover the pump branch pipe collar, and the intermediate ring is located between the pipeline flange and the captive flange. On the end surface of the intermediate ring facing the cap flange, and on the end surface of the pipeline flange adjoining the intermediate ring, annular grooves are made for arrangement of sealing elements in them.

EFFECT: invention is aimed at reducing time for preparatory works for testing pumps and for reinstalling tooling of various diameters.

4 cl, 2 dwg