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  1. Marath007

    Air Dryer sizing - Correction factors for dewpoint

    Well my guess is that the previous engineer added a small correction factor to remedy to the air properties change without going too deep. From what i observe with a typical 70F dry bulb, 0F Dewpoint its 5% humidity while -40F dew point is 0.5% which is extremely low and the air properties are...
  2. Marath007

    Special hardware

    The nut is inaccessible during the worklife, so I want to make sure it never fails. The bolt is in stainless steel and if that bolt fails then they put a new one. The mass/mass ratio is more than 1:100, 1 part stainless/silicon bronze to 100 part galvanised steel. So the galvanised steel will...
  3. Marath007

    Hi How to determine the return a

    dont forget 15-20 CFM of fresh air per people in the building.
  4. Marath007

    Air Dryer sizing - Correction factors for dewpoint

    hello, I dont fully understand the request here you say Air Dryer but you work in semiconductor. I get its a airdryer spreadsheet about flow compensation. and you need to calculate air with dew point near -40F right? So look i got this wonderful website for quick calculation...
  5. Marath007

    Special hardware

    In a work project we need a nut size M13, that can resist corrosion in harsh weather and light electric current. I also need that nut to be weldable with galvanised steel. So far a Silicon bronze nut would do, I found a provided in inch size which was fine at first but now the client request...
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