doppler flowmeter Articles

  • DFM 5.0 doppler flow meter for frac sand slurry flow monitoring

    CanFrac Sands Ltd. of Lloydmister Saskatchewan (Canada) needed a flowmeter that could accurately measure sand slurry flow without being damaged by this highly abrasive product. They selected the Greyline DFM 5.0 Doppler Flow Meter with a clamp-on ultrasonic sensor mounted on the outside of a pipe. CanFrac produce “fracturing sand” used by the oil and gas industry. This special type of ...


    By Greyline Instruments Inc.

  • Case study - Flowmeter troubleshooting at the township of North Glengarry

    The Problem... The forcemain meter at the pump station read five times higher than the open channel flowmeter at the lagoon 2 km away. The Township needed to determine which of the two flow meters was reading incorrectly. Troubleshooting Forcemain Flow... First step was to evaluate performance of the 12” magmeter at the sewage pump station. The cost ...


    By Greyline Instruments Inc.

  • Versatility is the key with the Blue-White hybrid ultra-sonic flowmeter, “sonic-pro”, at the Key West WWTP

    The Florida Keys have long been known for its exotic islands, pristine snorkeling, artistic charm, and a magnificent coral reef. This natural beauty attracts millions of tourists every year. Needless to say, maintaining the quality of the sea water surrounding the keys is essential to the allure and economic viability of the area. The Key West Southernmost Wastewater Treatment Plant was ...


  • Two Technologies for Flow Measurement from Outside a Pipe

    Doppler and Transit Time are two very popular types of flow meter for non-invasive measurement of flow in full pipes. We tend to confuse these technologies because they are both ultrasonic and both measure flow by using sensors clamped onto the outside of a pipe. In the real world they actually work best in opposite applications. Success in your installation depends on understanding the ...


    By Greyline Instruments Inc.

  • Non-contacting solution for Plugged off flow meters in the oil patch - Case Study

    For years Petrobakken Energy Ltd. used inline turbine flow meters to track the flow rate of oil recycled to treaters. But with a high concentration of wax and sand in the oil, the turbine meters were quickly plugging off. The line had to be shut down at least once a day and the turbine flowmeters disassembled for cleaning. This was troublesome and expensive. Petrobakken knew there had to be a ...


    By Greyline Instruments Inc.

  • Non-Contacting Solution for Plugged Off Flow Meters in The Oil Patch

    For years Petrobakken Energy Ltd. used inline turbine flow meters to track the flow rate of oil recycled to treaters. But with a high concentration of wax and sand in the oil, the turbine meters were quickly plugging off. The line had to be shut down at least once a day and the turbine flowmeters disassembled for cleaning. This was troublesome and expensive. Petrobakken knew there had to be a ...


    By Greyline Instruments Inc.

  • Sewer-Flow Survey Project

    Environmontel Ltd Supply of HydroLog4 time-series database and flow data processing system for sewer-flow survey projects Environmontel Ltd, an established flow-survey company based in Worcester, selected HydroLog4 as their sewer-flow survey information system for use by survey teams on short-term drainage-area surveys and other longer-term monitoring projects. The ...

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