Flow measurements
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Flow measurements - 1

Flow measurements Our flow meters use the float principle and are suitable for exact measurement of gaseous and liquids. In addition to the extensive standard assortment, individual measuring ranges and different types of measurement acquisition are also possible on request. Type Installation Meas. Tube Size mm Flow range air Flow range water Connection Material As standard with valve Measurement trans *Glass change in installed state W = wall mounting, S = panel mounting, R = inline installation, St = standard measuring tube, So = special measuring tube EM-Technik GmbH - IndustriestraGe 2 - 67133 Maxdorf - Germany info@em-technik.com

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Flow measurements - 2

The emtechnik flow meters are based on the float principle. The flow rate measurement is given by the relation between the force of gravity on the float and the flow velocity of the medium inside the measuring tube. At a constant flow velocity the float stabilises at a specific height within the conical measuring cylinder. In this position the forces acting on the float are in equilibrium. This means that the weight force (G) of the float is raised by the buoyancy force (A), the amount of media displaced by the float and the flow force (K) caused by the flow (G=A+K). If the flow velocity...

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Flow measurements - 3

Float table EM-Technik GmbH - IndustriestraGe 2 - 67133 Maxdorf - Germany info@em-technik.com

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Flow measurements - 4

The product advantages of the series Measuring tube and float The measuring tubes that are used are mostly made of Duran® glass and correspond to accuracy classes 2.5 according to VDI/VDE 3513. Duran® glass has high corrosion resistance against almost all measuring material with the exception of hot concentrated lyes or hydrofluoric acid. The high boron trioxide content ensures a high temperature change resistance, so that its coefficient of linear expansion is only 3.2 x 10-6 m/1°C. For easy flow rate measurements of air in which media resistance is not a key consideration, we also offer...

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Flow measurements - 5

The regulation valve emtechnik flow meters come standard with a fine control valve (except 4M, 4N, 4T). The flow rate characteristics of the valve are aligned to the respective flow rate. A design without valve is also possible on request. Accuracy classes according to VDI/VDE 3513 Measuring tube 0 x length Class % of final value min/max EM-Technik GmbH - IndustriestraGe 2 - 67133 Maxdorf - Germany info@em-technik.com

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