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Recent content by Techsan2013

  1. Techsan2013

    Hydrotesting; Delta T, Delta P! Need formula that accounts for Thermal Expansion in Pipe and H20.

    Thank you all, I have been researching this none stop and with the help here, I have come to the below. Life is well.. just that "LIFE".. and trying to account for the temperature and pressure in the case is near impossible. Unsolvable problems: 1. Testing the system over a 24 hr period with...
  2. Techsan2013

    Hydrotesting; Delta T, Delta P! Need formula that accounts for Thermal Expansion in Pipe and H20.

    They waited 30min before taking the initial reading, not recording every 30min. Sorry for the confusion there.
  3. Techsan2013

    Hydrotesting; Delta T, Delta P! Need formula that accounts for Thermal Expansion in Pipe and H20.

    Current testing procedure: (pipe is hung just below deck (ceiling) in an exposed/open building (not roughed in)) 1. Fill line (from lowest point) 2. Bleed off the air at the high points 3. Pressurize the system using a water/air tank (air as the means of supplying the pressurizing force) 4...
  4. Techsan2013

    Hydrotesting; Delta T, Delta P! Need formula that accounts for Thermal Expansion in Pipe and H20.

    First off I understand that Hydrotesting over any substantial time period is erroneous as ASME guidelines state ~15min. Per General Contractor/Contract with owner, we have to run a 24hr Hydrotest. The problem arises when they claim we fail the test and can't listen to reason, (temperature is...

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