isolamento duplo para medidor de pressão diferencial de câmara dupla

摘要

Double isolation for double chamber differential pressure meter, where the differential pressure meter comprising an axial conduit (2) in which there is arranged a plate (3) provided with an orifice (4) which can be extracted into an accessory chamber (6) which communicates with the axial conduit (2) through a passage (5), there being arranged in relation to said passage (5) a closure formed by two angular plate valves (8 and 9) which can move independently between a position in which they do not interfere with the aforementioned passage (5)and a position in which they interrupt it such that said angular plate valves (8 and 9) allow establishing a leak-tight closure between the axial conduit (2) and the accessory chamber (6) to extract the plate (3) without interrupting the flow of gas or fluid through the axial conduit (2).