A manufacturing method of an averaging pitot type differential flow meter integrated with a pipe-connecting means

摘要

the present invention provides a flow rate detecting element of a shape, the channel ( ) shape, the shape of the one or more pressure tap upstream of the connecting means, at least one downstream pressure to shape the flow sensing element of the tab, the said pipe connecting means is in a first step of producing a mold framework for betting dip to form a one-piece, pipe line connection means integral average Pitot type differential pressure flowmeter using the mold frame on which it was printed by die casting (die casting) or injection system 2 step provides a manufacturing method of the pipe connecting means integral average differential pressure type flow meter including a Pitot. The invention die-casting a pipe connecting means integral average Pitot type differential pressure flow meter, by making the injection, casting method and simplify the flow meter production process, increase productivity, to improve the accuracy of the flow meter in actual mounting, during the maintenance of the flow meter repair has the effect of increasing the reliability of the test. ;