Annubar Flow meter Special Equipment

The measuring element of the Annubar flowmeter, Annubar, is developed based on the early Pitot tube speed measurement principle. It is a new type of differential pressure flow measuring element developed in the late 1960s. Annubar flow meters are widely used in power plants, petrochemicals, metallurgy, water treatment, fine chemicals, environmental protection and other industries. Annubar flowmeter is a hollow metal rod inserted into a pipe along its diameter. It has pairs of pressure measuring holes in the direction of fluid flow, usually two pairs, and its shape is like a flute. The multi-point pressure measuring holes on the upstream surface measure the total pressure and are connected to the total pressure pipe to derive the average total pressure p1. There is a pressure tapping hole in the center of the backflow surface and is connected to the static pressure pipe to derive the static pressure. p2. Annubar measures the flow rate by measuring the difference between the total pre…