DEA HAN Conical Venturi tube

    Due to the conical design of the Venturi tube, the flow of fluids (gas, water, air) at the narrowest point of low pressure (p2=dynamic pressure) leads to the accumulation of the medium and the formation of the highest pressure (p1=static pressure) at the contracted outlet. The liquid pressure difference generated by the Bernoulli equation (incompressible, frictionless).

   Pitot tube also works on the basis of Bernoulli equation. Contrary to the Venturi tube, the work is accomplished by using a second tube parallel to the direction of the medium flow, thereby causing the fluid to collide with the opening of the front tube. Dynamic pressure is formed in front of the tube and static pressure is formed behind the tube. This remains unchanged. The opening of pipes with different shapes can affect the measurement results.

   The minimum permanent pressure loss is achieved through the elliptical shape of the shaft. In contrast, the opening of a trapezoidal pipeline generates strong vortex shedding in the measuring body, which hinders flow and generates very high flow resistance.

   All devices can be used vertically and horizontally.