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  • Users: Liad
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  1. Liad

    High pressure limitation for equipment

    Hello, We plan to have a positive displacement pump that can get up to a discharge pressure of 30 bar. we will have a pressure relief valve after the pump that will work at around 10 bar, and a pressure transmitter after the pump so we can stop the pump if we reach 8 bar. I know that a pressure...
  2. Liad

    Gear pump failure against backpressure

    Hello All, We are dealing with a phenomenon of a very rapid drop in pump performance shortly after the system is activated. To go deep into the details: We have a tank with an agitator inside, there is a liquid inside(a mixture of water and oil) with level control. there is an outlet pipe going...
  3. Liad

    Pump in parallel - Fluctuations in flow

    Hey all, We are running a system with 3 positive gear pumps in parallel that installed at the outlet of a tank, like the picture below: The left pump is the closest pump to the tank. The outlet of the tank is 1.5", going up to suction of the pump is 3/4" for each pump and the discharge pipe is...
  4. Liad

    Heating calculations of flow in a pipe

    Hey All, We want to design a water heater that works with a constant water flow in a pipe. The pipe run in circles inside a water tank, the water in the tank is the heating medium. We want to get an estimate of the required length pipe. For this I take few assumptions: surface temperature is...
  5. Liad

    Pressure drop differences in piping

    Hello All, I got into a discussion with some other mechanical ENGs about pressure drop in pipe. We are running some tests for a gear pump and want to simulate a flow rate with back pressure in the end of a long line that as a connection to a 10 bar steam line. I suggest to use a short line and a...

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