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  1. RomanKatz

    Q=mCdT vs UdT

    Thank you all. Best Regards Roman Katz
  2. RomanKatz

    Q=mCdT vs UdT

    Hello friends, I am trying to calculate the required Q for a double jacket 10m3 vessel heated by a small boiler. If I do the Q=mcdt equation it turns out 500 kg,60 degC difference about 30+Kw. How ever If I calculate the resistance of heating the water,convection to and throught the copper...
  3. RomanKatz

    IBC Filling Stand

    Hello friends, I need to fill EXACT weight in many 1000L plastic tanks (IBC). To do it I need to pump from one IBC into another. I have a pump to do that, but I have to control the filling. SO I was thinking about a movable filling post (submerged into a concrete bucket/cut drum). The...
  4. RomanKatz

    Balance Point

    It Is just as you described it. profile is a square post and it is placed outdoors. Best Regards Roman Katz
  5. RomanKatz

    Balance Point

    Hello friends, Need your advice regarding a balance point: A 24L bucket (D=0.3m,H=0.34m) is to be filled with concrete. A 2.4m profile (50mm*50*2) is to be placed into the bucket before it solidifies. I intend to place a chemical identification sign at the top (or another height). The...
  6. RomanKatz

    Sprinkler system calculation

    It's about 12 bars indeed, As a sprinkler. About 15m3/hr. Thank you all, friends for the insights. Best Regards Roman Katz
  7. RomanKatz

    Sprinkler system calculation

    It is a pressure booster pump for a sprinkler system. I assume it is as old as the sprinklers, I only have a motor label. But thanks anyway. Best Regards Roman Katz
  8. RomanKatz

    Sprinkler system calculation

    Another question friends, Water that is supplied is at 210 PSI pressure. There is additional 2'' pump 7.5KW, 15A that provides additional pressure. How can I calculate what addition(PSI) does that pump produce? Best Regards Roman Katz
  9. RomanKatz

    Sprinkler system calculation

    Just found the model, hope to find the data from the supplier. It is 20 year old sprinkler system. Thanks all. Best Regards Roman Katzhttps://files.engineering.com/getfile.aspx?folder=ff6e8d81-2320-435f-b57c-6fba4485a214&file=sprinkler.jpg
  10. RomanKatz

    Sprinkler system calculation

    Hello Friends, I need to calculate sprinkler LPMM (LPM per 1 meter) spraying capacity. I know that that we have 12rows*13 units/row =156 units for 1200 M2 of storage. I also know that the pressure in the sprinkler piping system is 11-12 bar. Water is provided from 1000M3 tank by a 6'' pipe...
  11. RomanKatz

    Draining Flow

    Hello Friends, I have a 4m3 vertical tank. At the bottom, 2'' draining valve. How to calculate the draining flow? It is obviously height dependent, so if it has a 1m3 water in it? Thanks. Best Regards Roman Katz
  12. RomanKatz

    Gear pump vibrations

    Not Very noisy, but it bents and after some time the connections leak. If the new tube is too stiff, it's because it has allot of metal so it will make a specific noise (like one frequency meets a different one), I know it from other places that I have this type of tube. I think it is called an...
  13. RomanKatz

    Gear pump vibrations

    I attached a pic to better explain myself. See the top plastic hose. Best Regards Roman Katzhttps://files.engineering.com/getfile.aspx?folder=4b0029c0-10ff-4907-a7d3-bc78c4c4aa49&file=pump.jpg
  14. RomanKatz

    Gear pump vibrations

    Hello Friends, I have a 2'' 100LPM gear pump, I used it to transfer lubricant additives from the drum to a mixing tank. I connect the pump to a piping system by a flexible plastic tube. I want to change this tube to a stiffer hose and my concern is that because pump has vibrations this new...
  15. RomanKatz

    Oil Water Separator

    Hello Friends, Got a question for you: I have two underground oil water separators. Each has 2 vents. I was wondering, can I close or cover them up? It's a safety concern. A workers foot can get trapped, it's 4'' diameter openings. Thanks. Best Regards Roman Katz
  16. RomanKatz

    foam presence during windscreen production

    True, It's just that Latexman mentioned specs so I assumed that he knows enough to suggest. Best Regards Roman Katz
  17. RomanKatz

    foam presence during windscreen production

    Can you suggest a different soap maybe? Best Regards Roman Katz
  18. RomanKatz

    foam presence during windscreen production

    The components are: IPA NP9 some kind of soap Buthyl glycole perfume , 2'' GS pipe from bottom of the storage tank to the pump, about 4 m long.It's a top fill, from the pump to the 1m3 tank. Best Regards Roman Katz
  19. RomanKatz

    foam presence during windscreen production

    Hello friends, I have a question for you: We produce a windscreen fluid in a 4m3 storage tank. A centrifugal pump(100-600 LPM) pumps the liquid into a 1m3 tank that feeds the filling machine. When a 1m3 tank is empty, the pump works to fill the tank. It is then, the foam is produced, lots of...
  20. RomanKatz

    Pump output

    Hello friends, I have a gear pump 1.5'' that pumps 40LMP. I have a same pump 2'' that pumps 100LMP, under same conditions. Is there a rule of thump to tell that increase from one diameter to another, increases output by?... Best Regards Roman Katz
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