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  1. Journeyman1972

    PDS to AutoPLANT

    Is there a pain free way of translating PDS files into AutoPLANT? Those who have experienced this, please share your thoughts and give advise. Thanks.
  2. Journeyman1972

    ceiling to pipe

    Is there a guideline specifying the minimum distance between the ceiling and a pipe? the pipe will be supported by a hanger. Thanks in advance.
  3. Journeyman1972

    maximum shear load -pipe shoe and support

    What's the maximum shear load before a teflon slide plate is needed between a pipe shoe and the supporting steel
  4. Journeyman1972

    weld neck flanges in between 2 butterfly valves

    thanks zapster. But i'm not sure I understand. I got the butterfly valve part but what's being bubble tight anything to do with the flanges?
  5. Journeyman1972

    weld neck flanges in between 2 butterfly valves

    Is there anything wrong in having weldneck flanges welded back to back and placed in between 2 butterfly valves? the space in between the flanges ranges in between 3 to 5 inches.
  6. Journeyman1972

    Air Plenum - what's the effect without it?

    Thanks guys for your input. I've tried connecting to ARI's website, but to no avail. Maybe because I'm in Canada? Anyways, what I would like to do is to approach the issue scientifically as an engineer should do, and that is through calculations and testing. However, I would like to do some...
  7. Journeyman1972

    Air Plenum - what's the effect without it?

    thanks pennpoint! I was telling my colleauge that the plenum was there so that enough pressure will build up to overcome friction losses along the ducts. He argued nothing written will support my claim. Anyways, I guess I have to prove it scientifically to older, experienced colleague.
  8. Journeyman1972

    Air Plenum - what's the effect without it?

    I'm a mechanical designer in the truck/bus industry, and a colleague decided to redesign the front defroster by getting red of the air plenum above the 2 blowers. He said that it's better for performance but I'm wondering why I can't seem to buy it. Any HVAC expert input please. Thanks.

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