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Flow Indicators for Gases and Liquids
Flow Indicators for Gases and Liquids
To check the flow processes in pipeline systems and for insight into the interior of process pipes, many flow indicators are used in which the flowing medium sets a rotor turning and thus to a large extent visibly signals a flow. The particular thing with the special version Type DAA is that the rotor is housed in a glass cylinder. This version ensures a functional flow check from two points of view. On the one hand its construction as a visible cylinder gives a relatively large and thus easily observed field of observation; in addition the rotary movement of the Teflon rotor permits reliable monitoring of cloudy or dark media due to its noticeably bright colouring. This type of device is already widely used and has proved itself in industrial use thanks to its functional reliability. The flow indicator with integral cleaning device can be used in any position for checking the flow of gases and liquids. A choice of units is offered with connection dimensions ?" BSP to 1?"BSP, with which flow rates of, e.g., 0.4 l/min up to 100 l/min H2O can be reliably checked. Along with the standard housing version in brass, the units are also offered in a resistant stainless-steel version for aggressive media. If the rotor is unwanted for particular applications, e.g., for increases in flow rate, the unit is also available with just a sight glass with cleaning device. The type DAA flow indicators are usable for operating pressures up to PN 16 at temperatures up to 100?C.
