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  • Users: RedSnake
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  1. RedSnake

    Start time motor?

    We are exchanging a supply unit with several hydraulic pumps. We have 3 pumps supplied through the same fuses 250A they each have their own motor breaker. Previously it was a 11 kW, 5.5kW and a 0.75 kW. The 0.75 kW only starts occasionally and very rarely. The other 2 start almost...
  2. RedSnake

    A question about a sentence in a AC drive manual.

    I have this project with some Spaniards and we have this text from a AC drive manual, it isn't exactly crystal clear to begin with, and we both have a different understanding about what it actually says. Since neither he or I have English as our first language, I am asking you, what are they...
  3. RedSnake

    Is there a table for when a leakage becomes a "spray" instead of a flow incl. pressure ?

    Is there any table for the correlation between pressure, pipe/hose thickness and leakage opening when a leakage becomes a spray and not a flow? I got this mission from my boss's, boss, boss to describe the electrical functionality between our machine parts and which pumps can be turned of...
  4. RedSnake

    Update Bridge failure during launch, Umeå, Sweden.

    thread815-473871 A reminder of the disaster It has been a long process geting back to square one, and they are far from it yet. Now the "preliminary" finishing date is late 2022. 2021 Nov 6: The first thing they did was to take down the mold with a special robot and the parts are dropped to...
  5. RedSnake

    How to go green without failures and disasters?

    I think it is sad that we have thousands of years of accumulated knowledge and at least one hundred years of exponential technical development and we stil can’t utilize what we know. I know it has much to do with politics, markets and peoples unwillingness to draw back on consumption and...
  6. RedSnake

    Flow reduction problem over nozzle ?

    My problem is I have this pressure relief prop valve. RS416-10/315/0,7 In the documentation it’s says it the maximum flow is 6 liter/minute depending on the nozzle D12. Which is placed between the P port and the valve cone and then to the T tank. You can buy it without the nozzle but ours...
  7. RedSnake

    Data sheet for REXROTH proportional pressure relief valve RS416

    Some one who as access to a data sheet for REXROTH proportional pressure relief valve RS416-10/315/0,7 ?? Best regards Anna “Logic will get you from A to Z; imagination will get you everywhere.“ Albert Einstein
  8. RedSnake

    Problem with S7 Manager and Win10, Programming window minimizes when I pusch Enter or R clicki.!!?

    Problem with S7 Manager and Win10, The programming window is minimized when I pusch Enter or right click on the mouce when I try to change the input in the program.!!??1 I'm not getting anything done here, so I'm going crazy .. I have checked the settings in the S7 manager finds nothing...
  9. RedSnake

    New start material strenght calculation for operating horn from crashed plane. Part 2

    Can anyone help me check if this calculation works so far? There are so many conversions between different units .. The calculation is made by a free software but I assume that their calculation models are correct. My own assumption is that the elevator is heavier at the front edge as there are...
  10. RedSnake

    Could anyone help me with a material strenght calculation of this operating horn from crashed plane?

    Picture elevator to the left and stabilizer to the right. Properties Metric Imperial Tensile strength, ultimate 560 MPa 81200 psi Tensile strength, yield 460 MPa 66700 psi Modulus of elasticity 190-210 GPa 27557-30458 ksi Bulk modulus (Typical for steel) 140 GPa...

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