METHOD FOR PRODUCING THE INTERFACES BETWEEN THE CONCRETE ELEMENTS AND THE MECHANICAL ELEMENTS OF A CONCRETE VOLUTE PUMP AND PUMP OBTAINED THEREBY

摘要

P This method consists in simultaneously placing two metal rings 4 and 5 in the reservations 6 and 7 provided in the suction port 2 and in the well 3 of the volute 1 of the pump, by means of a manikin 15 having two molding surfaces axially spaced a predetermined distance and located near the rings 4 and 5, to embed each of the rings in a curable resinous material, while molding said resinous machine with the two molding surfaces of the manikin 15 of forming two annular resin blocks, having molded surfaces, and using said molded surfaces as support surfaces respectively for a sealing ring and for a cover in which the pump rotor is rotatably mounted. BR/ (CF DRAWING IN BOPI) BR/ BR/ / P