Flow metering – an important pump station addition
Complete flow metering vault with sensor, and readout/transmitter
Consider flow metering for accurate measurement – Pumping systems are frequently required to measure the volume of fluid being pumped over a period of time. This is often the case if a subdivision or industrial site is billed by the municipal sewer agency for the amount of wastewater it discharges to the sewage treatment plant.
Calculating the flow – An easy and inexpensive way to get a reasonable estimate of the volume of wastewater being pumped is to “calculate the flow.” This is done by multiplying the volume of water pumped with each pump start by the number of pump starts over a period of time. The resulting number, the total volume pumped during the period, is useful for estimating purposes.
Flow metering – Flow metering may be necessary for proving the discharge volume. Romtec Utilities supplies a number of flow metering systems from leading manufacturers as part of our complete wastewater submersible pump stations. An electromagnetic flow meter is inserted in the force main after the check and plug valves. The meter and associated piping and valves can also be pre-assembled in a separate vault. To provide for maintenance of the flow meter without disabling the pump station, the assembly of piping and valves to bypass the flow meter are also located in the flow meter vault.
The flow readout and reporting device, usually located at the pump station control panel, receives electronic flow data and reports it to a display. Transmission of flow data to a remote computer terminal is also available.
Romtec Utilities offers pre-assembled flow metering vaults in our line of complete lift stations for wastewater, stormwater and industrial pumping. Designs are available with piping from 2″ to 10″ diameter and can deliver volume and flow measurements accurate to within 0.5%. The pre-assembled flow metering vault shown in the photo includes a pre-cast concrete vault with access hatch, an electromagnetic flow meter, ductile piping, isolation valves and a bypass line for continuous pumping anytime the meter is isolated for maintenance.
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