UFM CoolPoint CP2-V8 Installation And Operation Manual
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4 CPBatMan080212UNIVERSAL FLOW MONITORS, INC.INSTALLATIONFor best results, the meters may be installed in any position as long as proper piping installationrequirements are observed. This includes sufficient support of adjacent piping to minimize thesystem’s inherent vibration. Unions of the same pipe size and full port isolation ball valves may beinstalled for ease of removal and servicing of equipment, if necessary. Meters should be placed inhorizontal, slightly ascending runs or vertical runs to prevent trapped air from accumulating in themeter. Furthermore, the meters should not be placed at the highest point in the piping. Thepiping system should be filled slowly to prevent water hammer from damaging the flow sensor.Please note that reverse flow can also damage the flow sensor.In order to achieve the stated accuracy, a straight pipe run of 10 pipe-diameters (minimum) isrequired upstream of the meter, as well as 5 pipe-diameters downstream. Isolation ball valves,when used, should be in the full open position. Throttling valves should always be placeddownstream of the meter. A minimum straight run of 50 pipe-diameters is required between anupstream valve and the flowmeter.If Teflon® tape or pipe sealant is used, the user must ensure that no loose parts becomewrapped around the bluff or the flow sensor when flow starts.Use of diaphragm or piston pumps affects the meter’s performance unless they are installed witha properly sized pulsation dampener and pressure control. The piping system must create somebackpressure on the meter to allow vortex formation and to prevent cavitation, especially at fullflow. Minimum required backpressure is 10 PSIG at maximum flow and at 70 °F (21 °C). Higherbackpressures are required at elevated temperatures and occasional surges to 125% of maximumflow.In rare situations, the user may notice an intermittent flow display that drops off while the flow isheld steady. In this case, please contact UFM to discuss the backpressure requirements. |
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